List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=5352
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "Best tournament ever!😝😝😝",
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            "description": "Good luck!",
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                "name": " 无间勤碁术化  Go Advance forward forever",
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            "name": "Servus Oida Open Tournament #5",
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                "username": "VikingKoala",
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            "description": "McMahon Kyu Player Tournament\n\nServus Oida Open Tournament #6 https://online-go.com/tournament/120511",
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                "summary": "Die Gruppe für alle, die sonst im Go7 spielen.",
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        },
        {
            "id": 94240,
            "name": "-____-",
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                "id": 1145806,
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                },
                "ranking": 20.449510354362694,
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                "ui_class": ""
            },
            "description": "-____-",
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                "id": 12100,
                "name": "GoBanDit+",
                "summary": "Заходи в группу тут много интересного,заранее спасибо))\nCome to the group here a lot of interesting things, thank you in advance))",
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                "ui_class": ""
            },
            "description": "and why the description?",
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        {
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