List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=players_start&page=620
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "Viel Spaß!",
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            "time_start": "2016-06-18T21:00:00Z",
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            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2016-06-19T21:07:30.415522Z",
            "ended": "2016-08-13T13:11:51.098085Z",
            "start_waiting": "2016-06-19T21:07:30.347458Z",
            "board_size": 13,
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            "player_count": 3,
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    ]
}