GET /api/v1/tournaments?format=api&ordering=min_ranking&page=5634
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "ended": "2018-10-15T19:39:06.586408Z",
            "start_waiting": "2018-07-24T06:03:56.012755Z",
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}