List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=5686
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2007-06-08T16:29:00Z",
            "ended": "2008-01-08T13:10:00Z",
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}