List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-first_pairing_method&page=5912
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59112,
    "next": null,
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-first_pairing_method&page=5911",
    "results": [
        {
            "id": 110419,
            "name": "RoBot",
            "director": {
                "id": 1236996,
                "username": "𝐌𝐢𝐧𝐠𝐋𝐚𝐮",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/9d95cff759575ac3bb6b4a95b725f529-64.png",
                "ratings": {
                    "version": 5,
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                        "rating": 1104.3194742901933,
                        "deviation": 67.80135232741836,
                        "volatility": 0.06007993155504504
                    }
                },
                "ranking": 17.21402287438817,
                "professional": false,
                "ui_class": ""
            },
            "description": "Let's roboroborobo",
            "schedule": null,
            "title": null,
            "tournament_type": "opengotha",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 88451,
            "time_control_parameters": {
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                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 13698,
                "name": "OGS Robot's Go AI (RGAI)",
                "summary": "https://online-go.com/group/13697\n\nJoin this group, too.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 10,
                "icon": "https://user-uploads.online-go.com/40bd43021c2cbd6b7bda2c72473a6e6f-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-12-08T13:00:00Z",
            "players_start": 4,
            "first_pairing_method": "opengotha",
            "subsequent_pairing_method": "opengotha",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/40bd43021c2cbd6b7bda2c72473a6e6f-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 132760,
            "name": "SP Open 2025 Test",
            "director": {
                "id": 1640355,
                "username": "Jxmeen",
                "country": "_LGBT",
                "icon": "https://user-uploads.online-go.com/c5389eaa972e9dbf1be046e179c3d68a-64.png",
                "ratings": {
                    "version": 5,
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                        "deviation": 64.66399240160506,
                        "volatility": 0.059993309265175
                    }
                },
                "ranking": 20.288249546314994,
                "professional": false,
                "ui_class": ""
            },
            "description": "this is a test DO NOT TOUCH",
            "schedule": null,
            "title": null,
            "tournament_type": "opengotha",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 21,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "total_time": 2700,
                "main_time": 2700,
                "period_time": 5,
                "periods": 5,
                "per_move": 2700,
                "initial_time": 2700,
                "time_increment": 1,
                "max_time": 2700
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15657,
                "name": "SPMS Weiqi AY25/26 Exco-Subcomm",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 10,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2025-09-25T14:00:00Z",
            "players_start": 0,
            "first_pairing_method": "opengotha",
            "subsequent_pairing_method": "opengotha",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-09-25T14:00:22.761189Z",
            "ended": "2025-09-25T14:18:36.432062Z",
            "start_waiting": "2025-09-25T14:18:36.414762Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}