List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=exclude_provisional&page=283
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "min_ranking": 10,
            "max_ranking": 16,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-09-12T15:04:26Z",
            "ended": "2013-09-12T13:04:26Z",
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}