List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-exclude_provisional&page=5215
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
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            "time_start": "2018-10-02T18:00:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
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            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-10-02T18:00:11.957565Z",
            "ended": "2018-10-02T18:31:42.712549Z",
            "start_waiting": "2018-10-02T18:00:11.313192Z",
            "board_size": 9,
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            "player_count": 5,
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