List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=5424
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "subsequent_pairing_method": "slaughter",
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            "ended": "2022-05-11T02:28:23.866934Z",
            "start_waiting": "2022-05-11T02:20:27.779620Z",
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}