List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=first_pairing_method&page=5771
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "subsequent_pairing_method": "strength",
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            "exclusivity": "group",
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            "ended": "2024-04-04T23:30:06.467751Z",
            "start_waiting": "2023-03-30T22:00:28.073029Z",
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}