diff --git a/db/db_init.sql b/db/db_init.sql
new file mode 100644
index 0000000..531dbf2
--- /dev/null
+++ b/db/db_init.sql
@@ -0,0 +1,414 @@
+-- Database: chessleague
+
+-- DROP DATABASE chessleague;
+
+-- CREATE DATABASE chessleague
+--     WITH 
+--     OWNER = postgres
+--     ENCODING = 'UTF8'
+--     LC_COLLATE = 'German_Germany.1252'
+--     LC_CTYPE = 'German_Germany.1252'
+--     TABLESPACE = pg_default
+--     CONNECTION LIMIT = -1;
+
+DROP TABLE IF EXISTS "player" CASCADE;
+DROP TABLE IF EXISTS "player_info" CASCADE;
+DROP TABLE IF EXISTS "game" CASCADE;
+DROP TABLE IF EXISTS "game_info" CASCADE;
+DROP TABLE IF EXISTS "match" CASCADE;
+DROP TABLE IF EXISTS "matchday" CASCADE;
+DROP TABLE IF EXISTS "season" CASCADE;
+
+CREATE TABLE "player" (
+  "id" SERIAL PRIMARY KEY,
+  "name" varchar NOT NULL,
+  "nickname" varchar NOT NULL,
+  "info" int UNIQUE
+);
+
+CREATE TABLE "player_info" (
+  "id" SERIAL PRIMARY KEY,
+  "url" varchar
+);
+
+CREATE TABLE "game" (
+  "id" SERIAL PRIMARY KEY,
+  "match" int NOT NULL,
+  "player1_is_white" boolean NOT NULL,
+  "result" int NOT NULL,
+  "info" int UNIQUE
+);
+
+CREATE TABLE "game_info" (
+  "id" SERIAL PRIMARY KEY,
+  "format" int,
+  "url" varchar
+);
+
+
+CREATE TABLE "match" (
+  "id" SERIAL PRIMARY KEY,
+  "player1" int NOT NULL,
+  "player2" int NOT NULL,
+  "matchday" int NOT NULL
+);
+
+CREATE TABLE "matchday" (
+  "id" SERIAL PRIMARY KEY,
+  "number" int NOT NULL,
+  "season" int NOT NULL
+);
+
+CREATE TABLE "season" (
+  "id" SERIAL PRIMARY KEY,
+  "year_start" int NOT NULL,
+  "year_end" int NOT NULL
+);
+
+ALTER TABLE "player" ADD FOREIGN KEY ("info") REFERENCES "player_info" ("id");
+
+ALTER TABLE "game" ADD FOREIGN KEY ("match") REFERENCES "match" ("id");
+
+ALTER TABLE "game" ADD FOREIGN KEY ("info") REFERENCES "game_info" ("id");
+
+ALTER TABLE "match" ADD FOREIGN KEY ("player1") REFERENCES "player" ("id");
+
+ALTER TABLE "match" ADD FOREIGN KEY ("player2") REFERENCES "player" ("id");
+
+ALTER TABLE "match" ADD FOREIGN KEY ("matchday") REFERENCES "matchday" ("id");
+
+ALTER TABLE "matchday" ADD FOREIGN KEY ("season") REFERENCES "season" ("id");
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/aprilem262');
+INSERT INTO "player" (name, nickname, info) VALUES ('Sophia', 'aprilem262', (SELECT id from player_info WHERE url='https://www.chess.com/member/aprilem262') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/friedox');
+INSERT INTO "player" (name, nickname, info) VALUES ('Friedi', 'friedox', (SELECT id from player_info WHERE url='https://www.chess.com/member/friedox') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/internity');
+INSERT INTO "player" (name, nickname, info) VALUES ('Albert', 'internity', (SELECT id from player_info WHERE url='https://www.chess.com/member/internity') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/kevske');
+INSERT INTO "player" (name, nickname, info) VALUES ('Kevin', 'kevske', (SELECT id from player_info WHERE url='https://www.chess.com/member/kevske') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/kochi291');
+INSERT INTO "player" (name, nickname, info) VALUES ('Marcel', 'Kochi291', (SELECT id from player_info WHERE url='https://www.chess.com/member/kochi291') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/ladyanne26');
+INSERT INTO "player" (name, nickname, info) VALUES ('Anne', 'LadyAnne26', (SELECT id from player_info WHERE url='https://www.chess.com/member/ladyanne26') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/lakes0');
+INSERT INTO "player" (name, nickname, info) VALUES ('Florian', 'Lakes0', (SELECT id from player_info WHERE url='https://www.chess.com/member/lakes0') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/maddingladi');
+INSERT INTO "player" (name, nickname, info) VALUES ('Maddin', 'maddingladi', (SELECT id from player_info WHERE url='https://www.chess.com/member/maddingladi') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/magnus_brother');
+INSERT INTO "player" (name, nickname, info) VALUES ('Tariq', 'Magnus_brother', (SELECT id from player_info WHERE url='https://www.chess.com/member/magnus_brother') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/mama-lolo');
+INSERT INTO "player" (name, nickname, info) VALUES ('Malte', 'Mama-Lolo', (SELECT id from player_info WHERE url='https://www.chess.com/member/mama-lolo') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/marcriedlsperger');
+INSERT INTO "player" (name, nickname, info) VALUES ('Marc', 'marcriedlsperger', (SELECT id from player_info WHERE url='https://www.chess.com/member/marcriedlsperger') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/mistmade03');
+INSERT INTO "player" (name, nickname, info) VALUES ('Florian', 'Mistmade03', (SELECT id from player_info WHERE url='https://www.chess.com/member/mistmade03') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/moryzzle');
+INSERT INTO "player" (name, nickname, info) VALUES ('Moritz', 'Moryzzle', (SELECT id from player_info WHERE url='https://www.chess.com/member/moryzzle') );
+
+INSERT INTO "player_info" (url) VALUES ('https://www.chess.com/member/pandroit');
+INSERT INTO "player" (name, nickname, info) VALUES ('Peter', 'pandroit', (SELECT id from player_info WHERE url='https://www.chess.com/member/pandroit') );
+
+INSERT INTO "season" (year_start, year_end) VALUES (2020, 2020);
+
+INSERT INTO "matchday" (number, season) VALUES (1, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  1, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  8, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  4, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  3, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  6, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  9, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  7, 1);
+
+INSERT INTO "matchday" (number, season) VALUES (2, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1, 11, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10, 12, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  8, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  4, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  3, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  6, 2);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  9, 2);
+
+INSERT INTO "matchday" (number, season) VALUES (3, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  1, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5, 11, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13, 12, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  8, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  4, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  3, 3);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  6, 3);
+
+INSERT INTO "matchday" (number, season) VALUES (4, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  5, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13, 10, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2, 11, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14, 12, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  8, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  4, 4);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  3, 4);
+
+INSERT INTO "matchday" (number, season) VALUES (5, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  1, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  5, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14, 10, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7, 11, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9, 12, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  8, 5);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  4, 5);
+
+INSERT INTO "matchday" (number, season) VALUES (6, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  2, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14, 13, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  5, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9, 10, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6, 11, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3, 12, 6);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  8, 6);
+
+INSERT INTO "matchday" (number, season) VALUES (7, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  1, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  2, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9, 13, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  5, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3, 10, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4, 11, 7);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8, 12, 7);
+
+INSERT INTO "matchday" (number, season) VALUES (8, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  7, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9, 14, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  2, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3, 13, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  5, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8, 10, 8);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12, 11, 8);
+
+INSERT INTO "matchday" (number, season) VALUES (9, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  1, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  7, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3, 14, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  2, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8, 13, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  5, 9);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11, 10, 9);
+
+INSERT INTO "matchday" (number, season) VALUES (10, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  6, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  9, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  7, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8, 14, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  2, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11, 13, 10);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  5, 10);
+
+INSERT INTO "matchday" (number, season) VALUES (11, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  1, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  6, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  9, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  7, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11, 14, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  2, 11);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5, 13, 11);
+
+INSERT INTO "matchday" (number, season) VALUES (12, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  4, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  3, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  6, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  9, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  7, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5, 14, 12);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  2, 12);
+
+INSERT INTO "matchday" (number, season) VALUES (13, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  1, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  4, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  3, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  6, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  9, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  7, 13);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2, 14, 13);
+
+INSERT INTO "matchday" (number, season) VALUES (14, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1, 12, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8, 11, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4, 10, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  5, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6, 13, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  2, 14);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7, 14, 14);
+
+INSERT INTO "matchday" (number, season) VALUES (15, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  1, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12, 10, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  5, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4, 13, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  2, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6, 14, 15);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  7, 15);
+
+INSERT INTO "matchday" (number, season) VALUES (16, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1, 10, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  5, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12, 13, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  2, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4, 14, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  7, 16);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  9, 16);
+
+INSERT INTO "matchday" (number, season) VALUES (17, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  1, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10, 13, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  2, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12, 14, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  7, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  9, 17);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  6, 17);
+
+INSERT INTO "matchday" (number, season) VALUES (18, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1, 13, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  2, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10, 14, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  7, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  9, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  6, 18);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  3, 18);
+
+INSERT INTO "matchday" (number, season) VALUES (19, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  1, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13, 14, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  7, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  9, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  6, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  3, 19);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 8,  4, 19);
+
+INSERT INTO "matchday" (number, season) VALUES (20, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1, 14, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  7, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  9, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  6, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  3, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11,  4, 20);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (12,  8, 20);
+
+INSERT INTO "matchday" (number, season) VALUES (21, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  1, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  9, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  6, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  3, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5,  4, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10,  8, 21);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (11, 12, 21);
+
+INSERT INTO "matchday" (number, season) VALUES (22, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  9, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  6, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  3, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2,  4, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  8, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5, 12, 22);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (10, 11, 22);
+
+INSERT INTO "matchday" (number, season) VALUES (23, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  1, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  3, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7,  4, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  8, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2, 12, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13, 11, 23);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 5, 10, 23);
+
+INSERT INTO "matchday" (number, season) VALUES (24, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  3, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6,  4, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  8, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7, 12, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14, 11, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2, 10, 24);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (13,  5, 24);
+
+INSERT INTO "matchday" (number, season) VALUES (25, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4,  1, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3,  8, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6, 12, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9, 11, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7, 10, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  5, 25);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 2, 13, 25);
+
+INSERT INTO "matchday" (number, season) VALUES (26, 1);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 1,  8, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 4, 12, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 3, 11, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 6, 10, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 9,  5, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES ( 7, 13, 26);
+INSERT INTO "match" ("player1", "player2", "matchday") VALUES (14,  2, 26);
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8722014513');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8722014513'));
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8723231941');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8723231941'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8724907847');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), TRUE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8724907847'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8725036665');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8725036665'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8725614379');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8725614379'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8726184583');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=2 AND player2=9 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8726184583'));
+
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8616485043');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8616485043'));
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8618149677');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), FALSE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8618149677'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8702757001');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), FALSE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8702757001'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8705204521');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8705204521'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8705796221');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), FALSE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8705796221'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8706438057');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=14 AND player2=7 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8706438057'));
+
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8617630129');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), TRUE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8617630129'));
+
+INSERT INTO "game_info" (format, url) VALUES (10, 'https://www.chess.com/live/game/8618225533');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8618225533'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8619306585');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), TRUE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8619306585'));
+
+INSERT INTO "game_info" (format, url) VALUES (5, 'https://www.chess.com/live/game/8619471075');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8619471075'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8620078695');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), TRUE, -1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8620078695'));
+
+INSERT INTO "game_info" (format, url) VALUES (3, 'https://www.chess.com/live/game/8620568591');
+INSERT INTO "game" (match, player1_is_white, result, info) VALUES ((SELECT id from match WHERE player1=10 AND player2=4 AND matchday=1), FALSE, 1, (SELECT id from game_info WHERE url='https://www.chess.com/live/game/8620568591'));
\ No newline at end of file
diff --git a/frontend/styles/shared-styles.js b/frontend/styles/shared-styles.js
index e4871f2..4bc9f36 100644
--- a/frontend/styles/shared-styles.js
+++ b/frontend/styles/shared-styles.js
@@ -7,7 +7,7 @@ $_documentContainer.innerHTML = `
 <custom-style>
     <style include='lumo-badge'>
         html {
-          --lumo-font-family: "Palatino Linotype", Palatino, Palladio, "URW Palladio L", "Book Antiqua", Baskerville, "Bookman Old Style", "Bitstream Charter", "Nimbus Roman No9 L", Garamond, "Apple Garamond", "ITC Garamond Narrow", "New Century Schoolbook", "Century Schoolbook", "Century Schoolbook L", Georgia, serif;
+          --lumo-font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif;
         }
 
         [theme~="dark"] {
diff --git a/frontend/views/results/results-view.css b/frontend/views/results/results-view.css
new file mode 100644
index 0000000..e5e0704
--- /dev/null
+++ b/frontend/views/results/results-view.css
@@ -0,0 +1,40 @@
+.about-view {
+  display: block;
+}
+
+.column_header {
+  font-weight: bold;
+  font-size: large;
+}
+
+.big_header {
+  font-weight: bolder;
+  font-size: x-large;
+}
+
+.matchday_grid {
+  --_lumo-grid-border-width: 0;
+}
+
+/*.inner_matchday_layout {*/
+/*  background-color: white;*/
+/*}*/
+
+/*.inner_matchday_layout > th {*/
+/*  background-color: white;*/
+/*}*/
+
+/*:host {*/
+/*  background-color: white;*/
+/*}*/
+
+/*[part~="cell"].matchday_grid {*/
+/*  background-color: white;*/
+/*}*/
+
+/*.matchday_grid .v-grid-cell {*/
+/*}*/
+
+/*.matchday_grid .v-grid-tablewrapper{*/
+/*  border: none;*/
+/*}*/
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index c206b6a..fe86105 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1410,6 +1410,11 @@
         "@webcomponents/shadycss": "^1.8.0"
       }
     },
+    "@types/geojson": {
+      "version": "7946.0.7",
+      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.7.tgz",
+      "integrity": "sha512-wE2v81i4C4Ol09RtsWFAqg3BUitWbHSpSlIo+bNdsCJijO9sjme+zm+73ZMCa/qMC8UEERxzGbvmr1cffo2SiQ=="
+    },
     "@types/glob": {
       "version": "7.1.3",
       "resolved": "https://registry.npmjs.org/@types/glob/-/glob-7.1.3.tgz",
@@ -1426,6 +1431,14 @@
       "integrity": "sha512-cxWFQVseBm6O9Gbw1IWb8r6OS4OhSt3hPZLkFApLjM8TEXROBuQGLAH2i2gZpcXdLBIrpXuTDhH7Vbm1iXmNGA==",
       "dev": true
     },
+    "@types/leaflet": {
+      "version": "1.5.23",
+      "resolved": "https://registry.npmjs.org/@types/leaflet/-/leaflet-1.5.23.tgz",
+      "integrity": "sha512-S/xpuwjZuwYMP+4ZzQ10PX0Jy+0XmwPeojtjqhbca9UXaINdoru91Qm/DUUXyh4qYm3CP6Vher06l/UcA9tUKQ==",
+      "requires": {
+        "@types/geojson": "*"
+      }
+    },
     "@types/minimatch": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.3.tgz",
@@ -1464,6 +1477,23 @@
         "@vaadin/vaadin-themable-mixin": "^1.6.1"
       }
     },
+    "@vaadin/vaadin-avatar": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@vaadin/vaadin-avatar/-/vaadin-avatar-1.0.0.tgz",
+      "integrity": "sha512-+RpyW7dPYFX581csOTek3q4QhWiJl8WGF6X0gw4vKelaOJbcPztTYoLmcRVP4lC95L+1NWYjyUvrB21FgvGndg==",
+      "requires": {
+        "@polymer/iron-a11y-announcer": "^3.0.0",
+        "@polymer/iron-resizable-behavior": "^3.0.0",
+        "@polymer/polymer": "^3.0.0",
+        "@vaadin/vaadin-element-mixin": "^2.3.2",
+        "@vaadin/vaadin-item": "^2.2.0",
+        "@vaadin/vaadin-list-box": "^1.3.0",
+        "@vaadin/vaadin-lumo-styles": "^1.6.0",
+        "@vaadin/vaadin-material-styles": "^1.3.2",
+        "@vaadin/vaadin-overlay": "^3.4.1",
+        "@vaadin/vaadin-themable-mixin": "^1.6.1"
+      }
+    },
     "@vaadin/vaadin-board": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/@vaadin/vaadin-board/-/vaadin-board-2.2.0.tgz",
@@ -4362,6 +4392,21 @@
       "integrity": "sha512-xJJqzyd+7GCJXkcoBiQ1GuxEiOBCLQ0aVW9HMekifZsAVGdj5eJ4mFB9fEhSHipq9IOk/QXFJUiIr9lZT+EsGw==",
       "dev": true
     },
+    "cdigit": {
+      "version": "2.5.6",
+      "resolved": "https://registry.npmjs.org/cdigit/-/cdigit-2.5.6.tgz",
+      "integrity": "sha512-vWobMCPvyrlifhkVAgLhmRApM33OsvoWDhrNaAiwzZcWpzQfT0H3a+rxSZlCv3IyyjxwJHEQbExoJAQUSKvyRA==",
+      "requires": {
+        "commander": "^6.0.0"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "6.2.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-6.2.1.tgz",
+          "integrity": "sha512-U7VdrJFnJgo4xjrHpTzu0yrHPGImdsmD95ZlgYSEajAn2JKzDhDTPG9kBTefmObL2w/ngeZnilk+OV9CG3d7UA=="
+        }
+      }
+    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -4373,6 +4418,11 @@
         "supports-color": "^5.3.0"
       }
     },
+    "chance": {
+      "version": "1.1.7",
+      "resolved": "https://registry.npmjs.org/chance/-/chance-1.1.7.tgz",
+      "integrity": "sha512-bua/2cZEfzS6qPm0vi3JEvGNbriDLcMj9lKxCQOjUcCJRcyjA7umP0zZm6bKWWlBN04vA0L99QGH/CZQawr0eg=="
+    },
     "chokidar": {
       "version": "3.5.1",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.1.tgz",
@@ -6691,6 +6741,11 @@
         }
       }
     },
+    "is-docker": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/is-docker/-/is-docker-2.1.1.tgz",
+      "integrity": "sha512-ZOoqiXfEwtGknTiuDEy8pN2CfE3TxMHprvNer1mXiqwkOT77Rw3YVrUQ52EqAOU3QAWDQ+bQdx7HJzrv7LS2Hw=="
+    },
     "is-extendable": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/is-extendable/-/is-extendable-0.1.1.tgz",
@@ -6880,6 +6935,11 @@
         "invert-kv": "^2.0.0"
       }
     },
+    "leaflet": {
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/leaflet/-/leaflet-1.7.1.tgz",
+      "integrity": "sha512-/xwPEBidtg69Q3HlqPdU3DnrXQOvQU/CCHA1tcDQVzOwm91YMYaILjNp7L4Eaw5Z4sOYdbBz6koWyibppd8Zqw=="
+    },
     "lit-element": {
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-2.4.0.tgz",
@@ -7615,6 +7675,25 @@
         "wrappy": "1"
       }
     },
+    "open": {
+      "version": "7.4.2",
+      "resolved": "https://registry.npmjs.org/open/-/open-7.4.2.tgz",
+      "integrity": "sha512-MVHddDVweXZF3awtlAS+6pgKLlm/JgxZ90+/NBurBoQctVOOB/zDdVjcyPzQ+0laDGbsWgrRkflI65sQeOgT9Q==",
+      "requires": {
+        "is-docker": "^2.0.0",
+        "is-wsl": "^2.1.1"
+      },
+      "dependencies": {
+        "is-wsl": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/is-wsl/-/is-wsl-2.2.0.tgz",
+          "integrity": "sha512-fKzAra0rGJUUBwGBgNkHZuToZcn+TtXHpeCgmkMJMMYx1sQDYaCSyjJBSCa2nH1DGm7s3n1oBnohoVTBaN7Lww==",
+          "requires": {
+            "is-docker": "^2.0.0"
+          }
+        }
+      }
+    },
     "opn": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/opn/-/opn-5.5.0.tgz",
diff --git a/package.json b/package.json
index 76020d2..277bad2 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,11 @@
       "@vaadin/vaadin-tabs": "3.2.0",
       "@vaadin/vaadin-lumo-styles": "1.6.0",
       "@vaadin/vaadin-material-styles": "1.3.2",
-      "@vaadin/vaadin-rich-text-editor": "1.3.0"
+      "@vaadin/vaadin-rich-text-editor": "1.3.0",
+      "cdigit": "2.5.6",
+      "chance": "1.1.7",
+      "@vaadin/vaadin-avatar": "1.0.0",
+      "open": "^7.2.1"
     },
     "devDependencies": {
       "webpack-babel-multi-target-plugin": "2.3.3",
@@ -59,7 +63,7 @@
       "webpack-merge": "4.2.2",
       "webpack-dev-server": "3.11.0"
     },
-    "hash": "81077bf7aa0e1c9065dd7e9ca4953a7e706e0df572c3312c0a71a8a737a7af44"
+    "hash": "922cd90376cedcde9242327df36d06db3494f125b2e11465002bb39b2ca78988"
   },
   "dependencies": {
     "lit-element": "^2.2.1",
@@ -107,7 +111,11 @@
     "@vaadin/vaadin-material-styles": "1.3.2",
     "@vaadin/vaadin-rich-text-editor": "1.3.0",
     "leaflet": "^1.7.1",
-    "@types/leaflet": "^1.5.23"
+    "@types/leaflet": "^1.5.23",
+    "cdigit": "2.5.6",
+    "chance": "1.1.7",
+    "@vaadin/vaadin-avatar": "1.0.0",
+    "open": "^7.2.1"
   },
   "devDependencies": {
     "webpack-babel-multi-target-plugin": "2.3.3",
diff --git a/pom.xml b/pom.xml
index 332061a..ff4d6d8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -126,11 +126,23 @@
             <version>3.0.0</version>
         </dependency>
 
+<!--        <dependency>-->
+<!--            <groupId>org.hibernate</groupId>-->
+<!--            <artifactId>hibernate-core</artifactId>-->
+<!--            <version>5.4.29.Final</version>-->
+<!--        </dependency>-->
+
         <dependency>
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.postgresql</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>42.2.19.jre7</version>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
diff --git a/src/main/java/com/example/application/data/bean/MatchForMatchdayView.java b/src/main/java/com/example/application/data/bean/MatchForMatchdayView.java
new file mode 100644
index 0000000..145f451
--- /dev/null
+++ b/src/main/java/com/example/application/data/bean/MatchForMatchdayView.java
@@ -0,0 +1,64 @@
+package com.example.application.data.bean;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Match;
+import com.example.application.data.entity.Matchday;
+import com.example.application.data.entity.Player;
+
+import java.util.Collection;
+
+public class MatchForMatchdayView {
+    private Match match;
+    private Player player1;
+    private Player player2;
+    private Integer score1;
+    private Integer score2;
+
+    public MatchForMatchdayView(Match match, Player player1, Player player2, Integer score1, Integer score2) {
+        this.match = match;
+        this.player1 = player1;
+        this.player2 = player2;
+        this.score1 = score1;
+        this.score2 = score2;
+    }
+
+    public Match getMatch() {
+        return match;
+    }
+
+    public void setMatch(Match match) {
+        this.match = match;
+    }
+
+    public Player getPlayer1() {
+        return player1;
+    }
+
+    public void setPlayer1(Player player1) {
+        this.player1 = player1;
+    }
+
+    public Player getPlayer2() {
+        return player2;
+    }
+
+    public void setPlayer2(Player player2) {
+        this.player2 = player2;
+    }
+
+    public Integer getScore1() {
+        return score1;
+    }
+
+    public void setScore1(Integer score1) {
+        this.score1 = score1;
+    }
+
+    public Integer getScore2() {
+        return score2;
+    }
+
+    public void setScore2(Integer score2) {
+        this.score2 = score2;
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/Game.java b/src/main/java/com/example/application/data/entity/Game.java
new file mode 100644
index 0000000..22b18fd
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/Game.java
@@ -0,0 +1,77 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Objects;
+
+@Entity
+@Table(name = "game", schema = "public", catalog = "chessleague")
+public class Game {
+    private Integer id;
+    private Boolean player1IsWhite;
+    private Integer result;
+    private Match match;
+    private GameInfo gameInfo;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "player1_is_white", nullable = false)
+    public Boolean getPlayer1IsWhite() {
+        return player1IsWhite;
+    }
+
+    public void setPlayer1IsWhite(Boolean player1IsWhite) {
+        this.player1IsWhite = player1IsWhite;
+    }
+
+    @Basic
+    @Column(name = "result", nullable = false)
+    public Integer getResult() {
+        return result;
+    }
+
+    public void setResult(Integer result) {
+        this.result = result;
+    }
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Game that = (Game) o;
+        return Objects.equals(id, that.id) && Objects.equals(player1IsWhite, that.player1IsWhite) && Objects.equals(result, that.result);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, player1IsWhite, result);
+    }
+
+    @ManyToOne(cascade=CascadeType.ALL)
+    @JoinColumn(name = "match", referencedColumnName = "id", nullable = false)
+    public Match getMatch() {
+        return match;
+    }
+
+    public void setMatch(Match match) {
+        this.match = match;
+    }
+
+    @OneToOne
+    @JoinColumn(name = "info", referencedColumnName = "id")
+    public GameInfo getGameInfo() {
+        return gameInfo;
+    }
+
+    public void setGameInfo(GameInfo gameInfo) {
+        this.gameInfo = gameInfo;
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/GameInfo.java b/src/main/java/com/example/application/data/entity/GameInfo.java
new file mode 100644
index 0000000..ff9dec7
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/GameInfo.java
@@ -0,0 +1,66 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Objects;
+
+@Entity
+@Table(name = "game_info", schema = "public", catalog = "chessleague")
+public class GameInfo {
+    private Integer id;
+    private String url;
+    private Game game;
+    private Integer format;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "url", length = -1)
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    @Basic
+    @Column(name = "format", nullable = false)
+    public Integer getFormat() {
+        return format;
+    }
+
+    public void setFormat(Integer format) {
+        this.format = format;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        GameInfo that = (GameInfo) o;
+        return Objects.equals(id, that.id) && Objects.equals(url, that.url) && Objects.equals(format, that.format);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, url, format);
+    }
+
+    @OneToOne(mappedBy = "gameInfo")
+    public Game getGame() {
+        return game;
+    }
+
+    public void setGame(Game game) {
+        this.game = game;
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/Match.java b/src/main/java/com/example/application/data/entity/Match.java
new file mode 100644
index 0000000..bc7d3a1
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/Match.java
@@ -0,0 +1,78 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Collection;
+import java.util.Objects;
+
+@Entity
+@Table(name = "match", schema = "public", catalog = "chessleague")
+public class Match {
+    private Integer id;
+    private Collection<Game> games;
+    private Player player1;
+    private Player player2;
+    private Matchday matchday;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Match that = (Match) o;
+        return Objects.equals(id, that.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @OneToMany(mappedBy = "match", fetch = FetchType.EAGER)
+    public Collection<Game> getGames() {
+        return games;
+    }
+
+    public void setGames(Collection<Game> games) {
+        this.games = games;
+    }
+
+    @ManyToOne(cascade=CascadeType.ALL)
+    @JoinColumn(name = "player1", referencedColumnName = "id", nullable = false)
+    public Player getPlayer1() {
+        return player1;
+    }
+
+    public void setPlayer1(Player player1) {
+        this.player1 = player1;
+    }
+
+    @ManyToOne(cascade=CascadeType.ALL)
+    @JoinColumn(name = "player2", referencedColumnName = "id", nullable = false)
+    public Player getPlayer2() {
+        return player2;
+    }
+
+    public void setPlayer2(Player player2) {
+        this.player2 = player2;
+    }
+
+    @ManyToOne(cascade=CascadeType.ALL)
+    @JoinColumn(name = "matchday", referencedColumnName = "id", nullable = false)
+    public Matchday getMatchday() {
+        return matchday;
+    }
+
+    public void setMatchday(Matchday matchday) {
+        this.matchday = matchday;
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/Matchday.java b/src/main/java/com/example/application/data/entity/Matchday.java
new file mode 100644
index 0000000..3d9acd7
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/Matchday.java
@@ -0,0 +1,72 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Collection;
+import java.util.Objects;
+
+@Entity
+@Table(name = "matchday", schema = "public", catalog = "chessleague")
+public class Matchday {
+    private Integer id;
+    private Integer number;
+    private Collection<Match> matches;
+    private Season season;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "number", nullable = false)
+    public Integer getNumber() {
+        return number;
+    }
+
+    public void setNumber(Integer number) {
+        this.number = number;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Matchday that = (Matchday) o;
+        return Objects.equals(id, that.id) && Objects.equals(number, that.number);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, number);
+    }
+
+    @OneToMany(mappedBy = "matchday")
+    public Collection<Match> getMatches() {
+        return matches;
+    }
+
+    public void setMatches(Collection<Match> matches) {
+        this.matches = matches;
+    }
+
+    @ManyToOne(cascade=CascadeType.ALL)
+    @JoinColumn(name = "season", referencedColumnName = "id", nullable = false)
+    public Season getSeason() {
+        return season;
+    }
+
+    public void setSeason(Season season) {
+        this.season = season;
+    }
+
+    @Override
+    public String toString() {
+        return number.toString();
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/Player.java b/src/main/java/com/example/application/data/entity/Player.java
new file mode 100644
index 0000000..f5e1bf7
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/Player.java
@@ -0,0 +1,93 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Collection;
+import java.util.Objects;
+
+@Entity
+@Table(name = "player", schema = "public", catalog = "chessleague")
+public class Player {
+    private Integer id;
+    private String name;
+    private String nickname;
+    private Collection<Match> matchesAsPlayer1;
+    private Collection<Match> matchesAsPlayer2;
+    private PlayerInfo playerInfo;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "name", nullable = false, length = -1)
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Basic
+    @Column(name = "nickname", nullable = false, length = -1)
+    public String getNickname() {
+        return nickname;
+    }
+
+    public void setNickname(String nickname) {
+        this.nickname = nickname;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Player that = (Player) o;
+        return Objects.equals(id, that.id) && Objects.equals(name, that.name) && Objects.equals(nickname, that.nickname);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, name, nickname);
+    }
+
+    @OneToMany(mappedBy = "player1")
+    public Collection<Match> getMatchesAsPlayer1() {
+        return matchesAsPlayer1;
+    }
+
+    public void setMatchesAsPlayer1(Collection<Match> matchesAsPlayer1) {
+        this.matchesAsPlayer1 = matchesAsPlayer1;
+    }
+
+    @OneToMany(mappedBy = "player2")
+    public Collection<Match> getMatchesAsPlayer2() {
+        return matchesAsPlayer2;
+    }
+
+    public void setMatchesAsPlayer2(Collection<Match> matchesAsPlayer2) {
+        this.matchesAsPlayer2 = matchesAsPlayer2;
+    }
+
+    @OneToOne
+    @JoinColumn(name = "info", referencedColumnName = "id")
+    public PlayerInfo getPlayerInfo() {
+        return playerInfo;
+    }
+
+    public void setPlayerInfo(PlayerInfo playerInfo) {
+        this.playerInfo = playerInfo;
+    }
+
+    @Override
+    public String toString() {
+        return name + " (" + nickname + ")";
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/PlayerInfo.java b/src/main/java/com/example/application/data/entity/PlayerInfo.java
new file mode 100644
index 0000000..034d2a1
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/PlayerInfo.java
@@ -0,0 +1,55 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Objects;
+
+@Entity
+@Table(name = "player_info", schema = "public", catalog = "chessleague")
+public class PlayerInfo {
+    private Integer id;
+    private String url;
+    private Player player;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "url", length = -1)
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        PlayerInfo that = (PlayerInfo) o;
+        return Objects.equals(id, that.id) && Objects.equals(url, that.url);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, url);
+    }
+
+    @OneToOne(mappedBy = "playerInfo")
+    public Player getPlayer() {
+        return player;
+    }
+
+    public void setPlayer(Player player) {
+        this.player = player;
+    }
+}
diff --git a/src/main/java/com/example/application/data/entity/Season.java b/src/main/java/com/example/application/data/entity/Season.java
new file mode 100644
index 0000000..59a5200
--- /dev/null
+++ b/src/main/java/com/example/application/data/entity/Season.java
@@ -0,0 +1,76 @@
+package com.example.application.data.entity;
+
+import javax.persistence.*;
+import java.util.Collection;
+import java.util.Objects;
+
+@Entity
+@Table(name = "season", schema = "public", catalog = "chessleague")
+public class Season {
+    private Integer id;
+    private Integer yearStart;
+    private Integer yearEnd;
+    private Collection<Matchday> matchdays;
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id", nullable = false)
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    @Basic
+    @Column(name = "year_start", nullable = false)
+    public Integer getYearStart() {
+        return yearStart;
+    }
+
+    public void setYearStart(Integer yearStart) {
+        this.yearStart = yearStart;
+    }
+
+    @Basic
+    @Column(name = "year_end", nullable = false)
+    public Integer getYearEnd() {
+        return yearEnd;
+    }
+
+    public void setYearEnd(Integer yearEnd) {
+        this.yearEnd = yearEnd;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Season that = (Season) o;
+        return Objects.equals(id, that.id) && Objects.equals(yearStart, that.yearStart) && Objects.equals(yearEnd, that.yearEnd);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, yearStart, yearEnd);
+    }
+
+    @OneToMany(mappedBy = "season")
+    public Collection<Matchday> getMatchdays() {
+        return matchdays;
+    }
+
+    public void setMatchdays(Collection<Matchday> matchdays) {
+        this.matchdays = matchdays;
+    }
+
+    @Override
+    public String toString() {
+        String s = yearStart.toString();
+        if (!yearEnd.equals(yearStart)) {
+            s += "/" + yearEnd.toString();
+        }
+        return s;
+    }
+}
diff --git a/src/main/java/com/example/application/data/generator/DataGenerator.java b/src/main/java/com/example/application/data/generator/DataGenerator.java
index 40a9e49..2b15935 100644
--- a/src/main/java/com/example/application/data/generator/DataGenerator.java
+++ b/src/main/java/com/example/application/data/generator/DataGenerator.java
@@ -20,29 +20,29 @@ public class DataGenerator {
     @Bean
     public CommandLineRunner loadData(SamplePersonRepository samplePersonRepository) {
         return args -> {
-            Logger logger = LoggerFactory.getLogger(getClass());
-            if (samplePersonRepository.count() != 0L) {
-                logger.info("Using existing database");
-                return;
-            }
-            int seed = 123;
-
-            logger.info("Generating demo data");
-
-            logger.info("... generating 100 Sample Person entities...");
-            ExampleDataGenerator<SamplePerson> samplePersonRepositoryGenerator = new ExampleDataGenerator<>(
-                    SamplePerson.class, LocalDateTime.of(2021, 2, 26, 0, 0, 0));
-            samplePersonRepositoryGenerator.setData(SamplePerson::setId, DataType.ID);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setFirstName, DataType.FIRST_NAME);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setLastName, DataType.LAST_NAME);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setEmail, DataType.EMAIL);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setPhone, DataType.PHONE_NUMBER);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setDateOfBirth, DataType.DATE_OF_BIRTH);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setOccupation, DataType.OCCUPATION);
-            samplePersonRepositoryGenerator.setData(SamplePerson::setImportant, DataType.BOOLEAN_10_90);
-            samplePersonRepository.saveAll(samplePersonRepositoryGenerator.create(100, seed));
-
-            logger.info("Generated demo data");
+//            Logger logger = LoggerFactory.getLogger(getClass());
+//            if (samplePersonRepository.count() != 0L) {
+//                logger.info("Using existing database");
+//                return;
+//            }
+//            int seed = 123;
+//
+//            logger.info("Generating demo data");
+//
+//            logger.info("... generating 100 Sample Person entities...");
+//            ExampleDataGenerator<SamplePerson> samplePersonRepositoryGenerator = new ExampleDataGenerator<>(
+//                    SamplePerson.class, LocalDateTime.of(2021, 2, 26, 0, 0, 0));
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setId, DataType.ID);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setFirstName, DataType.FIRST_NAME);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setLastName, DataType.LAST_NAME);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setEmail, DataType.EMAIL);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setPhone, DataType.PHONE_NUMBER);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setDateOfBirth, DataType.DATE_OF_BIRTH);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setOccupation, DataType.OCCUPATION);
+//            samplePersonRepositoryGenerator.setData(SamplePerson::setImportant, DataType.BOOLEAN_10_90);
+//            samplePersonRepository.saveAll(samplePersonRepositoryGenerator.create(100, seed));
+//
+//            logger.info("Generated demo data");
         };
     }
 
diff --git a/src/main/java/com/example/application/data/service/GameInfoRepository.java b/src/main/java/com/example/application/data/service/GameInfoRepository.java
new file mode 100644
index 0000000..e07997e
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/GameInfoRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.GameInfo;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface GameInfoRepository extends JpaRepository<GameInfo, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/GameInfoService.java b/src/main/java/com/example/application/data/service/GameInfoService.java
new file mode 100644
index 0000000..1c04470
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/GameInfoService.java
@@ -0,0 +1,22 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.GameInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+@Service
+public class GameInfoService extends CrudService<GameInfo, Integer> {
+
+    private final GameInfoRepository repository;
+
+    public GameInfoService(@Autowired GameInfoRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected GameInfoRepository getRepository() {
+        return repository;
+    }
+
+}
diff --git a/src/main/java/com/example/application/data/service/GameRepository.java b/src/main/java/com/example/application/data/service/GameRepository.java
new file mode 100644
index 0000000..54dc4f6
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/GameRepository.java
@@ -0,0 +1,7 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface GameRepository extends JpaRepository<Game, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/GameService.java b/src/main/java/com/example/application/data/service/GameService.java
new file mode 100644
index 0000000..2f985bb
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/GameService.java
@@ -0,0 +1,22 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+@Service
+public class GameService extends CrudService<Game, Integer> {
+
+    private final GameRepository repository;
+
+    public GameService(@Autowired GameRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected GameRepository getRepository() {
+        return repository;
+    }
+
+}
diff --git a/src/main/java/com/example/application/data/service/MatchRepository.java b/src/main/java/com/example/application/data/service/MatchRepository.java
new file mode 100644
index 0000000..b6dbd30
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/MatchRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Match;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MatchRepository extends JpaRepository<Match, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/MatchService.java b/src/main/java/com/example/application/data/service/MatchService.java
new file mode 100644
index 0000000..0961387
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/MatchService.java
@@ -0,0 +1,50 @@
+package com.example.application.data.service;
+
+import com.example.application.data.bean.MatchForMatchdayView;
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Match;
+import com.example.application.data.entity.Matchday;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class MatchService extends CrudService<Match, Integer> {
+
+    private final MatchRepository repository;
+
+    public MatchService(@Autowired MatchRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected MatchRepository getRepository() {
+        return repository;
+    }
+
+    public List<MatchForMatchdayView> getMatchesForMatchdayView(Matchday matchday) {
+        return repository.findAll().stream()
+                .filter(match -> match.getMatchday().equals(matchday))
+                .map(match -> new MatchForMatchdayView(match, match.getPlayer1(), match.getPlayer2(), getScore1(match), getScore2(match)))
+                .collect(Collectors.toList());
+    }
+
+    private static Integer getScore1(Match match) {
+        int score = 0;
+        for (Game game : match.getGames()) {
+            score += ((game.getPlayer1IsWhite() ? game.getResult() : -game.getResult()) + 1) / 2;
+        }
+        return score;
+    }
+
+    private static Integer getScore2(Match match) {
+        int score = 0;
+        for (Game game : match.getGames()) {
+            score += ((game.getPlayer1IsWhite() ? -game.getResult() : game.getResult()) + 1) / 2;
+        }
+        return score;
+    }
+}
diff --git a/src/main/java/com/example/application/data/service/MatchdayRepository.java b/src/main/java/com/example/application/data/service/MatchdayRepository.java
new file mode 100644
index 0000000..a0f5db2
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/MatchdayRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Matchday;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MatchdayRepository extends JpaRepository<Matchday, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/MatchdayService.java b/src/main/java/com/example/application/data/service/MatchdayService.java
new file mode 100644
index 0000000..60393f2
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/MatchdayService.java
@@ -0,0 +1,31 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Matchday;
+import com.example.application.data.entity.Season;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class MatchdayService extends CrudService<Matchday, Integer> {
+
+    private final MatchdayRepository repository;
+
+    public MatchdayService(@Autowired MatchdayRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected MatchdayRepository getRepository() {
+        return repository;
+    }
+
+    public List<Matchday> getMatchdaysForSeason(Season season) {
+        return repository.findAll().stream()
+                .filter(matchday -> matchday.getSeason().equals(season))
+                .collect(Collectors.toList());
+    }
+}
diff --git a/src/main/java/com/example/application/data/service/PlayerInfoRepository.java b/src/main/java/com/example/application/data/service/PlayerInfoRepository.java
new file mode 100644
index 0000000..e112046
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/PlayerInfoRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.PlayerInfo;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PlayerInfoRepository extends JpaRepository<PlayerInfo, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/PlayerInfoService.java b/src/main/java/com/example/application/data/service/PlayerInfoService.java
new file mode 100644
index 0000000..07b4b0f
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/PlayerInfoService.java
@@ -0,0 +1,22 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.PlayerInfo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+@Service
+public class PlayerInfoService extends CrudService<PlayerInfo, Integer> {
+
+    private final PlayerInfoRepository repository;
+
+    public PlayerInfoService(@Autowired PlayerInfoRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected PlayerInfoRepository getRepository() {
+        return repository;
+    }
+
+}
diff --git a/src/main/java/com/example/application/data/service/PlayerRepository.java b/src/main/java/com/example/application/data/service/PlayerRepository.java
new file mode 100644
index 0000000..9a0df4d
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/PlayerRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Player;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PlayerRepository extends JpaRepository<Player, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/PlayerService.java b/src/main/java/com/example/application/data/service/PlayerService.java
new file mode 100644
index 0000000..54abd48
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/PlayerService.java
@@ -0,0 +1,22 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Player;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+@Service
+public class PlayerService extends CrudService<Player, Integer> {
+
+    private final PlayerRepository repository;
+
+    public PlayerService(@Autowired PlayerRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected PlayerRepository getRepository() {
+        return repository;
+    }
+
+}
diff --git a/src/main/java/com/example/application/data/service/SeasonRepository.java b/src/main/java/com/example/application/data/service/SeasonRepository.java
new file mode 100644
index 0000000..2e08350
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/SeasonRepository.java
@@ -0,0 +1,8 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Game;
+import com.example.application.data.entity.Season;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface SeasonRepository extends JpaRepository<Season, Integer> {
+}
diff --git a/src/main/java/com/example/application/data/service/SeasonService.java b/src/main/java/com/example/application/data/service/SeasonService.java
new file mode 100644
index 0000000..4682ae7
--- /dev/null
+++ b/src/main/java/com/example/application/data/service/SeasonService.java
@@ -0,0 +1,34 @@
+package com.example.application.data.service;
+
+import com.example.application.data.entity.Season;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.vaadin.artur.helpers.CrudService;
+
+import java.util.Collection;
+import java.util.Comparator;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class SeasonService extends CrudService<Season, Integer> {
+
+    private final SeasonRepository repository;
+
+    public SeasonService(@Autowired SeasonRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    protected SeasonRepository getRepository() {
+        return repository;
+    }
+
+    public List<Season> getAllSeasonsSorted() {
+        return repository.findAll().stream()
+                .sorted(Comparator.comparingInt(Season::getYearEnd))
+                .sorted(Comparator.comparingInt(Season::getYearStart))
+                .collect(Collectors.toList());
+    }
+
+}
diff --git a/src/main/java/com/example/application/views/about/AboutView.java b/src/main/java/com/example/application/views/about/AboutView.java
index 68c5ee9..34f7f93 100644
--- a/src/main/java/com/example/application/views/about/AboutView.java
+++ b/src/main/java/com/example/application/views/about/AboutView.java
@@ -1,5 +1,7 @@
 package com.example.application.views.about;
 
+import com.example.application.data.entity.*;
+import com.example.application.data.service.GameService;
 import com.vaadin.flow.component.Text;
 import com.vaadin.flow.component.dependency.CssImport;
 import com.vaadin.flow.component.html.Div;
@@ -12,7 +14,36 @@ import com.example.application.views.main.MainView;
 @PageTitle("About")
 public class AboutView extends Div {
 
-    public AboutView() {
+    public AboutView(GameService gameService) {
+//        Player player1 = new Player();
+//        player1.setName("Martin");
+//        player1.setNickname("maddingladi");
+//
+//        Player player2 = new Player();
+//        player2.setName("Marcel");
+//        player2.setNickname("Kochi");
+//
+//        Season season = new Season();
+//        season.setYearStart(2020);
+//        season.setYearEnd(2020);
+//
+//        Matchday matchday = new Matchday();
+//        matchday.setNumber(1);
+//        matchday.setSeason(season);
+//
+//        Match match = new Match();
+//        match.setMatchday(matchday);
+//        match.setPlayer1(player1);
+//        match.setPlayer2(player2);
+//
+//        Game game = new Game();
+//        game.setMatch(match);
+//        game.setFormat(10);
+//        game.setPlayer1IsWhite(true);
+//        game.setResult(1);
+//
+//        gameService.update(game);
+
         addClassName("about-view");
         add(new Text("Content placeholder"));
     }
diff --git a/src/main/java/com/example/application/views/helloworld/HelloWorldView.java b/src/main/java/com/example/application/views/helloworld/HelloWorldView.java
index e18736c..08113e9 100644
--- a/src/main/java/com/example/application/views/helloworld/HelloWorldView.java
+++ b/src/main/java/com/example/application/views/helloworld/HelloWorldView.java
@@ -13,7 +13,6 @@ import com.vaadin.flow.router.RouteAlias;
 
 @CssImport("./views/helloworld/hello-world-view.css")
 @Route(value = "hello", layout = MainView.class)
-@RouteAlias(value = "", layout = MainView.class)
 @PageTitle("Hello World")
 public class HelloWorldView extends HorizontalLayout {
 
@@ -26,9 +25,7 @@ public class HelloWorldView extends HorizontalLayout {
         sayHello = new Button("Say hello");
         add(name, sayHello);
         setVerticalComponentAlignment(Alignment.END, name, sayHello);
-        sayHello.addClickListener(e -> {
-            Notification.show("Hello " + name.getValue());
-        });
+        sayHello.addClickListener(e -> Notification.show("Hello " + name.getValue()));
     }
 
 }
diff --git a/src/main/java/com/example/application/views/main/MainView.java b/src/main/java/com/example/application/views/main/MainView.java
index ab2a749..9607485 100644
--- a/src/main/java/com/example/application/views/main/MainView.java
+++ b/src/main/java/com/example/application/views/main/MainView.java
@@ -2,6 +2,7 @@ package com.example.application.views.main;
 
 import java.util.Optional;
 
+import com.example.application.views.results.ResultsView;
 import com.vaadin.flow.component.Component;
 import com.vaadin.flow.component.ComponentUtil;
 import com.vaadin.flow.component.applayout.AppLayout;
@@ -35,7 +36,10 @@ import com.vaadin.flow.theme.lumo.Lumo;
  * The main view is a top-level placeholder for other views.
  */
 @CssImport("./views/main/main-view.css")
-@PWA(name = "Schachliga DeLuxe", shortName = "Schachliga DeLuxe", enableInstallPrompt = false)
+@PWA(name = "Schachliga DeLuxe",
+        shortName = "Schachliga DeLuxe",
+        iconPath = "images/logo.png",
+        enableInstallPrompt = false)
 @JsModule("./styles/shared-styles.js")
 @Theme(value = Lumo.class, variant = Lumo.DARK)
 public class MainView extends AppLayout {
@@ -90,10 +94,16 @@ public class MainView extends AppLayout {
     }
 
     private Component[] createMenuItems() {
-        return new Tab[]{createTab("Hello World", HelloWorldView.class), createTab("About", AboutView.class),
-                createTab("Card List", CardListView.class), createTab("Master-Detail", MasterDetailView.class),
-                createTab("Person Form", PersonFormView.class), createTab("Address Form", AddressFormView.class),
-                createTab("Credit Card Form", CreditCardFormView.class), createTab("Map", MapView.class)};
+        return new Tab[]{
+//                createTab("Hello World", HelloWorldView.class),
+//                createTab("About", AboutView.class),
+//                createTab("Card List", CardListView.class),
+//                createTab("Master-Detail", MasterDetailView.class),
+//                createTab("Person Form", PersonFormView.class),
+//                createTab("Address Form", AddressFormView.class),
+//                createTab("Credit Card Form", CreditCardFormView.class),
+//                createTab("Map", MapView.class),
+                createTab("Results", ResultsView.class)};
     }
 
     private static Tab createTab(String text, Class<? extends Component> navigationTarget) {
diff --git a/src/main/java/com/example/application/views/results/ResultsView.java b/src/main/java/com/example/application/views/results/ResultsView.java
new file mode 100644
index 0000000..5ac914b
--- /dev/null
+++ b/src/main/java/com/example/application/views/results/ResultsView.java
@@ -0,0 +1,282 @@
+package com.example.application.views.results;
+
+import com.example.application.data.bean.MatchForMatchdayView;
+import com.example.application.data.entity.Matchday;
+import com.example.application.data.entity.Player;
+import com.example.application.data.entity.Season;
+import com.example.application.data.service.MatchService;
+import com.example.application.data.service.MatchdayService;
+import com.example.application.data.service.SeasonService;
+import com.example.application.views.main.MainView;
+import com.vaadin.flow.component.*;
+import com.vaadin.flow.component.button.Button;
+import com.vaadin.flow.component.dependency.CssImport;
+import com.vaadin.flow.component.grid.ColumnTextAlign;
+import com.vaadin.flow.component.grid.Grid;
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.Label;
+import com.vaadin.flow.component.icon.Icon;
+import com.vaadin.flow.component.icon.VaadinIcon;
+import com.vaadin.flow.component.orderedlayout.FlexComponent;
+import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
+import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.component.select.Select;
+import com.vaadin.flow.function.ValueProvider;
+import com.vaadin.flow.router.*;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@CssImport("./views/results/results-view.css")
+@Route(value = "results", layout = MainView.class)
+@RouteAlias(value = "", layout = MainView.class)
+@PageTitle("Results")
+public class ResultsView extends Div implements HasUrlParameter<String> {
+
+    private final SeasonService seasonService;
+    private final MatchdayService matchdayService;
+    private final MatchService matchService;
+
+    private String seasonParam;
+    private String matchdayParam;
+
+    private final Label invalidUrlLabel = new Label();
+    private final Label matchdayViewHeader = new Label();
+
+    private final VerticalLayout outer = new VerticalLayout();
+    private final HorizontalLayout selectionLayout = new HorizontalLayout();
+    private final HorizontalLayout outerMatchdaylayout = new HorizontalLayout();
+    private final VerticalLayout innerMatchdayLayout = new VerticalLayout();
+
+    private final List<Season> seasonList = new ArrayList<>();
+    private final Select<Season> seasonSelect = new Select<>();
+
+    private final List<Matchday> matchdayList = new ArrayList<>();
+    private final Select<Matchday> matchdaySelect = new Select<>();
+
+    private final Button prevButton = new Button(new Icon(VaadinIcon.ARROW_LEFT));
+    private final Button nextButton = new Button(new Icon(VaadinIcon.ARROW_RIGHT));
+
+    private final Grid<MatchForMatchdayView> grid = new Grid<>();
+
+    public ResultsView(@Autowired SeasonService seasonService, @Autowired MatchdayService matchdayService, @Autowired MatchService matchService) {
+        this.seasonService = seasonService;
+        this.matchdayService = matchdayService;
+        this.matchService = matchService;
+
+        addClassName("results-view");
+
+        configureOuterLayout();
+        configureSelectionLayout();
+        configureMatchdayViewLayout();
+    }
+
+    private void configureOuterLayout() {
+        add(outer);
+        outer.setAlignItems(FlexComponent.Alignment.CENTER);
+    }
+
+    private void configureSelectionLayout() {
+        // pretty looks
+        selectionLayout.setWidthFull();
+        selectionLayout.setAlignItems(FlexComponent.Alignment.CENTER);
+        selectionLayout.setJustifyContentMode(FlexComponent.JustifyContentMode.END);
+        selectionLayout.add(new Label("Season:"), seasonSelect, new Label("Matchday:"), matchdaySelect);
+
+        seasonSelect.addValueChangeListener(seasonSelectValueChangeListener());
+        matchdaySelect.addValueChangeListener(matchdaySelectValueChangeListener());
+
+        // provide data
+        fillSeasonSelectWithData();
+    }
+
+    private HasValue.ValueChangeListener<? super AbstractField.ComponentValueChangeEvent<Select<Matchday>, Matchday>> matchdaySelectValueChangeListener() {
+        return matchdayChangeEvent -> getUI().ifPresent(ui -> {
+            Season season = seasonSelect.getValue();
+            Matchday matchday = matchdayChangeEvent.getValue();
+            if (season != null && matchday != null) {
+                String seasonParam = season.toString();
+                String matchdayParam = matchday.toString();
+                navigate(ui, seasonParam, matchdayParam);
+            }
+        });
+    }
+
+    private HasValue.ValueChangeListener<? super AbstractField.ComponentValueChangeEvent<Select<Season>, Season>> seasonSelectValueChangeListener() {
+        return seasonChangeEvent -> getUI().ifPresent(ui -> {
+            Season newSeason = seasonChangeEvent.getValue();
+            if (newSeason != null) {
+                String seasonParam = newSeason.toString();
+                String matchdayParam = null;
+
+                Matchday matchdayInNewSeason = null;
+                Matchday matchdayInOldSeason = matchdaySelect.getValue();
+                if (matchdayInOldSeason != null) {
+                    matchdayParam = matchdayInOldSeason.toString();
+                    matchdayInNewSeason = getMatchdayFromParam(matchdayParam, newSeason);
+                }
+                matchdayParam = matchdayInNewSeason == null ? "1" : matchdayParam;
+
+                navigate(ui, seasonParam, matchdayParam);
+            }
+        });
+    }
+
+    private void fillSeasonSelectWithData() {
+        seasonList.clear();
+        seasonList.addAll(seasonService.getAllSeasonsSorted());
+        seasonSelect.setItems(seasonList);
+    }
+
+    private void fillMatchdaySelectWithData() {
+        matchdayList.clear();
+        matchdayList.addAll(matchdayService.getMatchdaysForSeason(seasonSelect.getValue()));
+        matchdaySelect.setItems(matchdayList);
+    }
+
+    private void configureMatchdayViewLayout() {
+        outerMatchdaylayout.add(prevButton, innerMatchdayLayout, nextButton);
+
+        matchdayViewHeader.addClassName("big_header");
+
+        innerMatchdayLayout.setPadding(false);
+        innerMatchdayLayout.add(matchdayViewHeader, grid);
+        innerMatchdayLayout.setAlignItems(FlexComponent.Alignment.CENTER);
+        innerMatchdayLayout.addClassName("inner_matchday_layout");
+
+        Label headerPlayer1 = new Label("Player 1");
+        headerPlayer1.addClassName("column_header");
+        Label headerPlayer2 = new Label("Player 2");
+        headerPlayer2.addClassName("column_header");
+        Label headerResult = new Label("Result");
+        headerResult.addClassName("column_header");
+
+        grid.addColumn((ValueProvider<MatchForMatchdayView, Player>) MatchForMatchdayView::getPlayer1)
+                .setHeader(headerPlayer1)
+                .setTextAlign(ColumnTextAlign.CENTER)
+                .setWidth("13em");
+        grid.addColumn((ValueProvider<MatchForMatchdayView, String>) match -> "vs.")
+                .setHeader("vs.")
+                .setTextAlign(ColumnTextAlign.CENTER)
+                .setWidth("3em");
+        grid.addColumn((ValueProvider<MatchForMatchdayView, Player>) MatchForMatchdayView::getPlayer2)
+                .setHeader(headerPlayer2)
+                .setTextAlign(ColumnTextAlign.CENTER)
+                .setWidth("13em");
+        grid.addColumn((ValueProvider<MatchForMatchdayView, String>) match -> {
+            String result = match.getScore1().toString() + " : " + match.getScore2().toString();
+            return result.equals("0 : 0") ? "" : result;
+        })
+                .setHeader(headerResult)
+                .setTextAlign(ColumnTextAlign.CENTER)
+                .setWidth("6em");
+
+        grid.setWidth("36em");
+        grid.setHeightByRows(true);
+
+        grid.addClassName("matchday_grid");
+    }
+
+    private String getPrevMatchdayParam() {
+        return String.valueOf(Integer.parseInt(matchdayParam) - 1);
+    }
+
+    private String getNextMatchdayParam() {
+        return String.valueOf(Integer.parseInt(matchdayParam) + 1);
+    }
+
+    private boolean isMatchDayParamValid(@NonNull String matchdayParam) {
+        return matchdayList.stream().anyMatch(matchday -> matchdayParam.equals(matchday.toString()));
+    }
+
+    private ComponentEventListener<ClickEvent<Button>> getButtonClickListener(Button button, String matchdayParam) {
+        return buttonClickEvent -> getUI().ifPresent(ui -> navigate(ui, seasonParam, matchdayParam));
+    }
+
+    private void navigate(UI ui, String seasonParam, String matchdayParam) {
+        ui.navigate(String.format("results/%s/%s/", seasonParam, matchdayParam));
+    }
+
+    private void configureMatchdayView() {
+        matchdayViewHeader.setText(String.format("Matchday %s", matchdaySelect.getValue().toString()));
+        grid.setItems(matchService.getMatchesForMatchdayView(matchdaySelect.getValue()));
+    }
+
+    @Override
+    public void setParameter(BeforeEvent beforeEvent, @WildcardParameter String param) {
+        outer.removeAll();
+
+        if (!param.matches("^[0-9]*/[0-9]*/?$")) {
+            invalidUrlLabel.setText("Invalid URL! Please provide params in the form season/matchday/");
+            outer.add(invalidUrlLabel);
+            return;
+        }
+
+        String[] params = param.split("/");
+        seasonParam = params[0];
+        matchdayParam = params[1];
+
+        Season season = getSeasonFromParam(seasonParam);
+        if (season == null) {
+            invalidUrlLabel.setText(String.format("Invalid URL! Season \"%s\" does not exist in the database!", seasonParam));
+            outer.add(invalidUrlLabel);
+            return;
+        }
+
+        seasonSelect.setValue(season);
+        fillMatchdaySelectWithData();
+
+        Matchday matchday = getMatchdayFromParam(matchdayParam);
+        if (matchday == null) {
+            invalidUrlLabel.setText(String.format("Invalid URL! Matchday \"%s\" in Season \"%s\" does not exist in the database!", matchdayParam, seasonParam));
+            outer.add(invalidUrlLabel);
+            return;
+        }
+
+        matchdaySelect.setValue(matchday);
+        configureMatchdayView();
+
+        outer.add(selectionLayout);
+        outer.add(outerMatchdaylayout);
+
+        configureButtons();
+    }
+
+    private void configureButtons() {
+        prevButton.setEnabled(isMatchDayParamValid(getPrevMatchdayParam()));
+        prevButton.addClickListener(getButtonClickListener(prevButton, getPrevMatchdayParam()));
+
+        nextButton.setEnabled(isMatchDayParamValid(getNextMatchdayParam()));
+        nextButton.addClickListener(getButtonClickListener(nextButton, getNextMatchdayParam()));
+    }
+
+    @Nullable
+    private Season getSeasonFromParam(@NonNull String seasonParam) {
+        for (Season season : seasonList) {
+            if (seasonParam.equals(season.toString())) {
+                return season;
+            }
+        }
+        return null;
+    }
+
+    @Nullable
+    private Matchday getMatchdayFromParam(@NonNull String matchdayParam) {
+        return getMatchdayFromParam(matchdayParam, null);
+    }
+
+    @Nullable
+    private Matchday getMatchdayFromParam(@NonNull String matchdayParam, @Nullable Season season) {
+        List<Matchday> matchdayList = season == null ? this.matchdayList : matchdayService.getMatchdaysForSeason(season);
+        for (Matchday matchday : matchdayList) {
+            if (matchdayParam.equals(matchday.toString())) {
+                return matchday;
+            }
+        }
+        return null;
+    }
+
+}
diff --git a/src/main/resources/META-INF/resources/icons/icon.png b/src/main/resources/META-INF/resources/icons/icon.png
deleted file mode 100644
index 6fde5c1..0000000
Binary files a/src/main/resources/META-INF/resources/icons/icon.png and /dev/null differ
diff --git a/src/main/resources/META-INF/resources/images/logo.png b/src/main/resources/META-INF/resources/images/logo.png
index d921580..68a3863 100644
Binary files a/src/main/resources/META-INF/resources/images/logo.png and b/src/main/resources/META-INF/resources/images/logo.png differ
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 10a9926..6414578 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -6,3 +6,8 @@ logging.level.org.atmosphere = warn
 # To improve the performance during development. 
 # For more information https://vaadin.com/docs/v14/flow/spring/tutorial-spring-configuration.html#special-configuration-parameters
 # vaadin.whitelisted-packages= org/vaadin/example
+spring.datasource.initialization-mode=always
+spring.datasource.platform=postgres
+spring.datasource.url=jdbc:postgresql://localhost:5432/chessleague
+spring.datasource.username=postgres
+spring.datasource.password=postgres
\ No newline at end of file