List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5798
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "username": "๐™ฟ๐šž๐š ๐™บ.",
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            "description": "32th happy tourney, I will create a new tournament with this name every Monday, have fun!",
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                "summary": "Feel free to join and create tournaments๏ผ\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
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            "description": "แƒ’แƒแƒ•แƒแƒ แƒ“แƒœแƒ แƒแƒ  แƒฌแƒแƒ’แƒ”แƒ‘แƒแƒ–แƒ”",
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