List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-rules&page=5888
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。",
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            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-02-26T19:02:18Z",
            "ended": "2012-02-26T18:02:18Z",
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}