List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=322
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "This Round Robin Tournament honors the birthday (August 14) of Nihon Ki-in 9p professional Hane Naoki-san.",
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            "description": "Đánh cờ vây như bình thường!",
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                "name": "Nhóm việt nam ",
                "summary": "Admin ở nhóm này là 4 người mạnh nhất và Sunraku.",
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        {
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