List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-exclude_provisional&page=4568
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "ended": "2024-10-11T11:11:54.739005Z",
            "start_waiting": "2024-08-08T12:00:05.089952Z",
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}