List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=336
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "ended": "2022-07-12T14:22:33.731281Z",
            "start_waiting": "2022-06-28T15:00:13.418540Z",
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}