List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=time_per_move&page=97
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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            "start_waiting": "2020-05-30T04:44:13.883180Z",
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    ]
}