List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=331
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "subsequent_pairing_method": "random",
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            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-03-01T18:00:18.566548Z",
            "ended": "2021-03-01T18:36:27.542111Z",
            "start_waiting": "2021-03-01T18:00:18.364028Z",
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