List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=5223
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59325,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=5224",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=5222",
    "results": [
        {
            "id": 112197,
            "name": "19x19 Round-Robin Tournament | Members only",
            "director": {
                "id": 1494383,
                "username": "h4rdl0ck",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/55341f863707e69f12f31a97c6bb5e7a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 444.5496540747272,
                        "deviation": 89.0341587758458,
                        "volatility": 0.05999041800799365
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19 Round-Robin internal Tournament for Members only.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 91187,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13991,
                "name": "German Go L0vers",
                "summary": "Das ist eine private Gruppe nur für interne Turniere.\nThis is a private group for internal tournaments only.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 6,
                "icon": "https://user-uploads.online-go.com/58a47cb5dbced2067a2d40c72e053634-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-02-01T12:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2024-02-01T12:00:01.782532Z",
            "ended": "2024-03-01T07:51:54.879330Z",
            "start_waiting": "2024-02-01T12:00:01.639750Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/58a47cb5dbced2067a2d40c72e053634-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 89003,
            "name": "第2回LINE囲碁仲間募集@OGS大会open",
            "director": {
                "id": 1133458,
                "username": "yamaboshi_at_OGS",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/dec68910d8ec1a906027f06ac8466775-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1495.3011061735344,
                        "deviation": 62.17493017075928,
                        "volatility": 0.05990832004631342
                    }
                },
                "ranking": 24.23074876235651,
                "professional": false,
                "ui_class": ""
            },
            "description": "LINE囲碁仲間募集@OGSの大会です。\n外部へも参加解放します。\n開催1日延期しました。\neveryone welcome!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 44160,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 11374,
                "name": "LINE囲碁仲間募集@OGS",
                "summary": "LINEオープンチャット、囲碁仲間募集のOGS版です。",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 38,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2022-04-23T10:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 19,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-04-23T10:00:33.137227Z",
            "ended": "2022-06-03T02:01:12.842317Z",
            "start_waiting": "2022-04-23T10:00:32.939271Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 128560,
            "name": "HAPPY GO #106 Double Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1907.7734306771163,
                        "deviation": 72.1491854876469,
                        "volatility": 0.0598343125439762
                    }
                },
                "ranking": 29.8703022881453,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 43884,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-05-25T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-05-25T04:00:58.766971Z",
            "ended": "2025-10-27T16:33:42.867756Z",
            "start_waiting": "2025-05-25T04:00:58.643340Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 129107,
            "name": "HAPPY GO #107 Double Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1907.7734306771163,
                        "deviation": 72.1491854876469,
                        "volatility": 0.0598343125439762
                    }
                },
                "ranking": 29.8703022881453,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 43884,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-06-08T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-08T04:00:42.177349Z",
            "ended": "2025-12-29T00:25:59.472151Z",
            "start_waiting": "2025-06-08T04:00:42.045401Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 66077,
            "name": "สาระRails361! Tour ครั้งที่ 28",
            "director": {
                "id": 148806,
                "username": "โอ๋ชิงหยวน",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/d3f8fcc6dbd4915bc123f62b337be552-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1484.918972471606,
                        "deviation": 65.03818176438011,
                        "volatility": 0.05949046028311901
                    }
                },
                "ranking": 24.069453716254078,
                "professional": false,
                "ui_class": ""
            },
            "description": "#RESPECT\n\nOnly a few close friends were invited.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 12480,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 1123200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2571,
                "name": "Go World Wide",
                "summary": "enjoy",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 91,
                "icon": "https://user-uploads.online-go.com/889d994a8e18efb0db03c85b562aaad1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-13T03:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 12,
            "max_ranking": 34,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-10-13T03:00:37.676191Z",
            "ended": "2020-11-03T12:22:15.961682Z",
            "start_waiting": "2020-10-13T03:00:35.547688Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/889d994a8e18efb0db03c85b562aaad1-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 105880,
            "name": "9 by 9 correspondence 3 days 1",
            "director": {
                "id": 1397068,
                "username": "madhavkumar11",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/d2b99041789c075489454f7b77e56298?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 863.8851534323444,
                        "deviation": 81.85738591357435,
                        "volatility": 0.06000885647268437
                    }
                },
                "ranking": 11.52966241747563,
                "professional": false,
                "ui_class": ""
            },
            "description": "Pause on weekend, 3 days per move, 8 players, japanese rules, 9*9 board",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 698,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-08-05T11:30:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 10,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-08-16T04:28:56.071769Z",
            "ended": "2023-11-25T03:02:54.809120Z",
            "start_waiting": "2023-08-16T04:28:55.901232Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 131952,
            "name": "HAPPY GO #119 Double Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1907.7734306771163,
                        "deviation": 72.1491854876469,
                        "volatility": 0.0598343125439762
                    }
                },
                "ranking": 29.8703022881453,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 43884,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-09-07T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-09-07T04:00:15.943466Z",
            "ended": "2026-02-05T19:14:03.005963Z",
            "start_waiting": "2025-09-07T04:00:15.735774Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 35617,
            "name": "OGS Tournament",
            "director": {
                "id": 352615,
                "username": "August Ashita",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/f5eefd5ac43eb65481299edfae52c077-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1225.8557984416402,
                        "deviation": 64.68716013645431,
                        "volatility": 0.06017939620998018
                    }
                },
                "ranking": 19.6311126653499,
                "professional": false,
                "ui_class": ""
            },
            "description": "Bye bye see you in the tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 43,
            "time_control_parameters": {
                "period_time": 30,
                "main_time": 1200,
                "system": "byoyomi",
                "pause_on_weekends": false,
                "time_control": "byoyomi",
                "periods": 5,
                "speed": "live"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3,
                "name": "OGS",
                "summary": "An open group for folks' who like OGS!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1778,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-03-21T04:50:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-03-28T12:36:28.630172Z",
            "ended": "2018-03-28T13:45:57.079531Z",
            "start_waiting": "2018-03-28T12:36:28.103321Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 134654,
            "name": "HAPPY GO #128 Double Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1907.7734306771163,
                        "deviation": 72.1491854876469,
                        "volatility": 0.0598343125439762
                    }
                },
                "ranking": 29.8703022881453,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 43884,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-11-30T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-11-30T04:00:10.549579Z",
            "ended": null,
            "start_waiting": "2025-11-30T04:00:10.408352Z",
            "board_size": 19,
            "active_round": 4,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 114547,
            "name": "HAPPY GO #65 Double Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1907.7734306771163,
                        "deviation": 72.1491854876469,
                        "volatility": 0.0598343125439762
                    }
                },
                "ranking": 29.8703022881453,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 43884,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-04-07T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-04-07T04:00:44.146053Z",
            "ended": "2024-05-19T13:57:58.423695Z",
            "start_waiting": "2024-04-07T04:00:44.069406Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 4,
            "ranked": true
        }
    ]
}