List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=1904
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "title": null,
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            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4006,
                "name": "God of Go",
                "summary": "FIRST DECENTRALIZED GO LEARNING AND PLAYING PLATFORM",
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                "is_public": true,
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            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-10-10T10:28:01.233959Z",
            "ended": "2020-06-06T12:37:19.372735Z",
            "start_waiting": "2019-10-10T10:27:58.978654Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e758f131015bdcdb1ffce1d7e8b77f6d-15.png",
            "player_count": 40,
            "ranked": true
        }
    ]
}