List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-description&page=1326
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "time_start": "2022-07-03T02:00:00Z",
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            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
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            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-07-03T02:00:50.410282Z",
            "ended": "2022-08-13T18:27:35.110753Z",
            "start_waiting": "2022-07-03T02:00:50.331366Z",
            "board_size": 19,
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}