List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=time_per_move&page=3952
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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            "exclusivity": "group",
            "started": "2022-09-03T12:00:16.086284Z",
            "ended": "2022-12-03T11:04:46.108417Z",
            "start_waiting": "2022-09-03T12:00:15.209596Z",
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}