List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=min_ranking&page=4565
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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            "analysis_enabled": true,
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            "ended": "2020-12-09T12:25:05.475706Z",
            "start_waiting": "2020-07-16T12:08:04.255919Z",
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}