List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5956
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": ".Malkovich Round Robin 5 (12 kyu - 6 kyu)",
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                "username": "Wulfenia.",
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            "description": "ทดสอบ",
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                "name": "Piyachat ",
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        {
            "id": 139791,
            "name": "CHEERFUL GO #133 Single Elimination",
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                "username": "nobhaete",
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            "description": "Hi everyone, welcome and have fun!\n\nSingle elimination tournament every Thursday.\n\nPlease contact nobhaete directly if you have any questions.",
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                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
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            "name": "统计机器学习",
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