List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4241
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59214,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4242",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4240",
    "results": [
        {
            "id": 94257,
            "name": "4/9 練習賽",
            "director": {
                "id": 732914,
                "username": "Myosu",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/3e8044bfa5bfb2689285ad63b474e524-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2216.1194440671634,
                        "deviation": 71.86629998446274,
                        "volatility": 0.06019266480191935
                    }
                },
                "ranking": 33.338654947917895,
                "professional": false,
                "ui_class": ""
            },
            "description": "4/9練習棋",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10046,
                "name": "Hiroki’s Group",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2022-09-04T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-09-04T03:26:14.354552Z",
            "ended": "2022-09-04T04:40:15.851719Z",
            "start_waiting": "2022-09-04T03:26:14.240345Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 137923,
            "name": "Correspondence 9x9 RoundRobin 2026-03-04 19:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Site-wide Tournament",
            "schedule": {
                "id": 5,
                "name": "Correspondence 9x9 RoundRobin",
                "rrule": "DTSTART:20260402T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:56:18.340749Z",
                "last_run": "2026-04-02T19:00:15.771573Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-04-05T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2026-03-04T19:00:19.338333Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-03-04T19:00:19.864207Z",
            "ended": "2026-03-16T14:44:18.648468Z",
            "start_waiting": "2026-03-04T19:00:19.457868Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 84243,
            "name": "Classic W.D.D.T. XLVI",
            "director": {
                "id": 929191,
                "username": "EnsoZEN",
                "country": "cz",
                "icon": "https://user-uploads.online-go.com/9de5727796a655588080bb89cc627977-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1463.5820448380764,
                        "deviation": 67.30723430909097,
                        "volatility": 0.06004488935091738
                    }
                },
                "ranking": 23.734396346844115,
                "professional": false,
                "ui_class": ""
            },
            "description": "Classic weekly double death tournament.\n\nImportant! This is a tournament for beginners and intermediates. All registered players acknowledge that if they increase their position by more than 2 classes during the tournament, they will be disqualified.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8129,
                "name": "ZEN Go",
                "summary": "The search for happiness is one of the chief sources of unhappiness.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 48,
                "icon": "https://user-uploads.online-go.com/ff052c6c23b77d2514fe70ad0dcce3bb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-24T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 23,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-24T00:00:54.033758Z",
            "ended": "2022-03-25T22:35:15.686490Z",
            "start_waiting": "2022-01-24T00:00:53.839111Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ff052c6c23b77d2514fe70ad0dcce3bb-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 64621,
            "name": "September slog",
            "director": {
                "id": 635649,
                "username": "Kinsetsu",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/0b77bbe495d5bb9305a966f363acdf71-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 636.067546201368,
                        "deviation": 68.29021479174683,
                        "volatility": 0.05997814582336807
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "A tournament for people to enjoy in September. Have fun everyone.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 4456,
                "name": "Our Go House",
                "summary": "Hello this is Our Go House 🔰🔰\n😃🙃😊👋 YEET",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 159,
                "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-08-29T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-08-29T08:00:54.934653Z",
            "ended": "2021-01-29T03:51:57.880572Z",
            "start_waiting": "2020-08-29T08:00:54.015014Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 43293,
            "name": "Alpara Hazırlık",
            "director": {
                "id": 591578,
                "username": "HassanTass",
                "country": "tr",
                "icon": "https://user-uploads.online-go.com/0c360877d72dff6242e8410ebbbc5959-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2019.7115716691942,
                        "deviation": 112.95411698330416,
                        "volatility": 0.05999425692424947
                    }
                },
                "ranking": 31.190266579741145,
                "professional": false,
                "ui_class": ""
            },
            "description": "Alpara Hazırlık",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87840,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 129600,
                "max_time": 259200,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 447,
                "name": "turkey go players team",
                "summary": "Kader Oyunu (the game of destiny)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 165,
                "icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-12-06T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-12-06T22:00:36.580774Z",
            "ended": "2019-01-16T00:47:25.108671Z",
            "start_waiting": "2018-12-06T22:00:36.146735Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 87822,
            "name": "駱皓希 許淳博",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "駱皓希\n許淳博",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7530,
                "name": "傳碁 D班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 71,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-27T03:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-03-27T02:42:43.004496Z",
            "ended": "2022-03-27T02:53:11.554238Z",
            "start_waiting": "2022-03-27T02:42:42.949311Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 87867,
            "name": "葉恩滌 劉鍏浠",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "葉恩滌\n劉鍏浠",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7531,
                "name": "傳碁 C班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-28T04:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-03-28T03:50:22.096488Z",
            "ended": "2022-03-28T04:15:52.574132Z",
            "start_waiting": "2022-03-28T03:50:22.042779Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 88493,
            "name": "1 -> 郭朗昇 2 -> 駱皓希",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "1 -> 郭朗昇\n2 -> 駱皓希",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7530,
                "name": "傳碁 D班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 71,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-04-10T03:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-04-10T02:52:50.836163Z",
            "ended": "2022-04-10T03:20:02.343057Z",
            "start_waiting": "2022-04-10T02:52:50.782746Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 87882,
            "name": "Go basics torment",
            "director": {
                "id": 775974,
                "username": "p6329",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/e7cdc0e47d5289e4aebba6a3bac8ebdb-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1643.821661968314,
                        "deviation": 63.31103275212163,
                        "volatility": 0.06004447464614476
                    }
                },
                "ranking": 26.422966191786628,
                "professional": false,
                "ui_class": ""
            },
            "description": "All players are allowed to go in this torment",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 66,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 60,
                "initial_time": 600,
                "max_time": 600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17871,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-03-28T10:13:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-03-28T10:13:50.807321Z",
            "ended": "2022-03-28T10:30:17.928589Z",
            "start_waiting": "2022-03-28T10:13:50.750154Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 76399,
            "name": "Correspondence 19x19 RoundRobin 2021-06-17 19:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 6,
                "name": "Correspondence 19x19 RoundRobin",
                "rrule": "DTSTART:20260331T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:58:31.027016Z",
                "last_run": "2026-03-31T19:00:15.081472Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 432000,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-04-03T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2021-06-17T19:00:39.012822Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-06-17T19:01:38.325601Z",
            "ended": "2022-03-29T01:50:01.012959Z",
            "start_waiting": "2021-06-17T19:01:37.198904Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}