List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=54
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "title": null,
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            "started": "2023-04-02T04:00:34.142243Z",
            "ended": "2023-06-08T16:58:17.749342Z",
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}