List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5743
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
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            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-12-28T00:18:13.257011Z",
            "ended": "2018-12-28T00:25:33.108408Z",
            "start_waiting": "2018-12-28T00:18:12.976707Z",
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}