List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5646
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5645",
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                "username": "wiadp1",
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            },
            "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
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                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
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                "username": "クネーデル",
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            "description": "19x19 DDK Handicap Tournament",
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        {
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                "username": "абрикосик котик",
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            "description": "https://ru.pinterest.com/pin/5840674510326137/",
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                "summary": "Dear members: Thank you for your support! Our guild needs the help of more people to make the guild prosper. I hope everyone can contribute, join the guild, and recommend your friends to this big family.",
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            "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled mainly to allow the use of conditional moves.",
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            "description": "des parties pour debutant et pour le plaisir sans reel classement, je ne ss pas sur de jouer moi meme vu que je ss le meilleur de ce site et du monde entier(j'ai meme battu alphago),\n     un tournoi avec des joueurs a niveau en theorie equivalant.\namusez vous bien\nvivien",
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