List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=369
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "exclude_provisional": true,
            "group": {
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                "summary": "For all go players - feel free to join!",
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            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-04-19T16:00:47.286021Z",
            "ended": "2020-04-19T17:14:30.772712Z",
            "start_waiting": "2020-04-19T16:00:46.498115Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ec48471c12af9fa68f6f30d6c700930-15.png",
            "player_count": 5,
            "ranked": true
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}