List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-time_per_move&page=63
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "Группа для любителей поиграть в своё удовольствие. (Group for fans to play for fun).",
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            "subsequent_pairing_method": "strength",
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            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-12-02T14:08:47.602520Z",
            "ended": "2015-05-07T14:56:46.901690Z",
            "start_waiting": "2014-12-02T14:08:44.585584Z",
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}