List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-name&page=5660
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60021,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-name&page=5661",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-name&page=5659",
    "results": [
        {
            "id": 56101,
            "name": "2nd Young Lions Tournament",
            "director": {
                "id": 550024,
                "username": "Gargantuar",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/1029565026e3189a3ec6d705c5150152?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1539.1670250873235,
                        "deviation": 61.23300344486674,
                        "volatility": 0.05996522489317626
                    }
                },
                "ranking": 24.900102813699657,
                "professional": false,
                "ui_class": ""
            },
            "description": "Zweites \"Young Lions Tournament\", da einige es vergessen haben, sich im zweiten Afra Turnier anzumelden.\n\nEin 9x9 \"jeder gegen jeden\" (sprich insgesamt eine Runde) mit max. 4 Tagen Bedenkzeit.\n\nViel Spaß!\nがんばってください!\n화이팅!\n\nPS: Der Name ist angelehnt an ein Turnier aus \"Hikaru no Go\" ... sehr lesens-/sehenswert!\n\nPPS: Da ich vergessen habe, auf das neue Tunier hinzuweisen (vor allem das es an alle Gruppenmitglieder eine Nachricht kommt), wurde jetzt das Startdatum auf den 26. Februar verlegt.",
            "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",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2631,
                "name": "Freiheit 13",
                "summary": "inofficial and private group for (former) staff and students of our school - people unaffiliated with our school cannot join",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 42,
                "icon": "https://user-uploads.online-go.com/065648a4a48bcba4f8ca0a094338606d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-02-26T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-02-26T17:00:16.124379Z",
            "ended": "2020-03-19T23:59:01.878314Z",
            "start_waiting": "2020-02-26T17:00:14.436119Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/065648a4a48bcba4f8ca0a094338606d-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 134095,
            "name": "2nd Yeonwoo Pro Open",
            "director": {
                "id": 661209,
                "username": "GomezAlvaEs",
                "country": "es",
                "icon": "https://user-uploads.online-go.com/f14d8df8aa0df41e539d7c00d9640806-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1191.4291888125815,
                        "deviation": 66.40775072696641,
                        "volatility": 0.059953107510029906
                    }
                },
                "ranking": 18.971670433840064,
                "professional": false,
                "ui_class": ""
            },
            "description": "2nd edition of the Yenonwoo Pro Open Cup! Expectations is that this tournament goes faster and that also is more excited.\n\nTell your friends!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "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": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8313,
                "name": "Yeonwoo-pro Official Fan Club",
                "summary": "Korean baduk professional Yeonwoo fan club.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 135,
                "icon": "https://user-uploads.online-go.com/fbad9076f90747ac145923b496b6022a-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-11-09T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2025-11-09T16:00:33.051004Z",
            "ended": "2026-02-21T05:16:50.548428Z",
            "start_waiting": "2025-11-09T16:00:32.875114Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fbad9076f90747ac145923b496b6022a-15.png",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 17870,
            "name": "2nd Weekly Vanilla Cup",
            "director": {
                "id": 313632,
                "username": "AtariTime",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/86c18b2d06178a83c364e700a68a7179-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1025.6217318681754,
                        "deviation": 61.71658235558162,
                        "volatility": 0.06005974607211303
                    }
                },
                "ranking": 15.502536695610152,
                "professional": false,
                "ui_class": ""
            },
            "description": "A beginner-friendly weekly tournament. Restricted to non-provisional players, level under 20kyu. For fake-beginners: If you're not a beginner, try other tournaments according to your real skills instead (it would be more fair, no pain no gain!). Good luck to all players!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 600,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1118,
                "name": "The Vanilla Cups",
                "summary": "For beginner players (25k-20k): tournaments, strategies & tips, friendly matches...",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 46,
                "icon": "https://user-uploads.online-go.com/6045359e14a7f4da55c9df5bdd94b41c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2016-06-02T16:15:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2016-06-02T16:15:41.647160Z",
            "ended": "2016-06-02T17:16:35.566055Z",
            "start_waiting": "2016-06-02T16:15:41.476675Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6045359e14a7f4da55c9df5bdd94b41c-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 2802,
            "name": "2nd Week Tournament",
            "director": {
                "id": 52592,
                "username": "Lazy Satomi",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/0fee81bec9e326f5aacaee36c2ee806e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2154.48898811852,
                        "deviation": 62.96583598483079,
                        "volatility": 0.05991113495008934
                    }
                },
                "ranking": 32.68573000440283,
                "professional": false,
                "ui_class": ""
            },
            "description": "tournament for the 2nd week of February. Guys lets have fun and enjoy. Tournament will be activated in Saturday US time",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 191,
                "name": "Young and Old Players Association",
                "summary": "Welcomes to the Young and Old Players Association. We welcome all beginners and experienced players alike.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 96,
                "icon": "https://user-uploads.online-go.com/dd46257689e6a2e10f09419142e181ed-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-02-08T22:35:41.377681Z",
            "ended": "2014-05-03T05:45:10.839283Z",
            "start_waiting": "2014-02-08T22:35:41.032389Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/dd46257689e6a2e10f09419142e181ed-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 64045,
            "name": "2nd Wednsday Weekly Live 19x19 tournament",
            "director": {
                "id": 739236,
                "username": "Anorak_",
                "country": "kz",
                "icon": "https://user-uploads.online-go.com/9c678487fe92dce0d985cd44dc012213-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 893.7277695840772,
                        "deviation": 67.43938846808102,
                        "volatility": 0.06005987068570491
                    }
                },
                "ranking": 12.315868475723217,
                "professional": false,
                "ui_class": ""
            },
            "description": "*Description Goes Here*",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 50,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1800,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 160,
                "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-08-12T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-08-13T00:12:00.765214Z",
            "ended": "2020-08-13T01:49:57.887311Z",
            "start_waiting": "2020-08-13T00:12:00.564389Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 96189,
            "name": "2nd Trying for SDK, fast round robin",
            "director": {
                "id": 886972,
                "username": "Babbo Bruno",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/3a86884a3c89d9e4d9b53b217b0675cf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1023.2416118750762,
                        "deviation": 64.67977078308544,
                        "volatility": 0.05978954234238058
                    }
                },
                "ranking": 15.448750968227035,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "You must make 3 moves per day.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 259200,
                "max_time": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 828,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-11-03T14:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 17,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-11-03T14:00:17.524036Z",
            "ended": "2023-01-04T20:33:15.171022Z",
            "start_waiting": "2022-11-03T14:00:17.127353Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 55662,
            "name": "2nd Tournament",
            "director": {
                "id": 278620,
                "username": "rodrigo_o",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/5f04c97f6a4663c43d09dff0096bf3ac-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 915.824803911921,
                        "deviation": 68.60262348810217,
                        "volatility": 0.0602190954258877
                    }
                },
                "ranking": 12.881280922000522,
                "professional": false,
                "ui_class": ""
            },
            "description": "2nd Tournament from Tournament Kingdom",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3824,
                "name": "Tournament Kingdom",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-01-20T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-01-20T15:00:16.119033Z",
            "ended": "2020-04-20T05:04:15.672826Z",
            "start_waiting": "2020-01-20T15:00:15.283751Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 141114,
            "name": "2nd The Battlefield of Single Digit",
            "director": {
                "id": 1776211,
                "username": "MAESTRO of BADUK",
                "country": "kr",
                "icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1780.1125530663214,
                        "deviation": 67.44339287166498,
                        "volatility": 0.06003264861713345
                    }
                },
                "ranking": 28.26692808898232,
                "professional": false,
                "ui_class": ""
            },
            "description": "This is for players who want to enjoy fast correspondence match \n\nSwiss league for 10k~1k\n\nStart time: 24 hours\n\nFischer:: 6 hours\n\nMax. Time: 2 days\n\n*****\nRestricted Rank: 1k \n\nPlayers who reached 1 dan within 30 days before the tournament announcement date but have since dropped back to 1k are not eligible to participate. (Reference date: 30 days prior to May 1, 2026)\n\n*****\nThe winner will receive a seeded invitation to the main tournament of Road to Dan, a regular tournament hosted by the RS group. \n\n(We recommend you to be a member of the RS group to receive an invitation. According to the OGS system, we cannot send invitations to non-members.)\n\n*****\nPlease be careful below the rule;\n\nNO PAUSE & NO VACATION, anyone who takes on the vacation or pauses a game, will be disqualified.\n\nPlease send the tournament director a message if you find that your opponent pauses or turns vacation mode on. \n*****",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 22284,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 21600,
                "initial_time": 86400,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15815,
                "name": "RollingStones : Global & 한국인",
                "summary": "한국인 대환영. 한국인과 글로벌 유저들을 위한 모임, We are connected all together.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 78,
                "icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-06-22T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 20,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-06-17T09:19:34.506715Z",
            "ended": null,
            "start_waiting": "2026-06-17T09:19:34.329284Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-15.png",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 99571,
            "name": "2nd Sports",
            "director": {
                "id": 935377,
                "username": "langstonm",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/f0166190db1a986ce265b1483b277c5c?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1662.3108939062977,
                        "deviation": 290.31896371798047,
                        "volatility": 0.05999967537233814
                    }
                },
                "ranking": 26.681897238489267,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Sports Class Challenge",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 116876,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 864000,
                "max_time": 864000
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 12849,
                "name": "1st Sports Cultural History",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-01-31T14:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-01-31T13:37:05.632316Z",
            "ended": "2023-02-23T12:52:22.250745Z",
            "start_waiting": "2023-01-31T13:37:05.521061Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 132368,
            "name": "2nd SPMS Internal Tournament",
            "director": {
                "id": 1640355,
                "username": "Jxmeen",
                "country": "_LGBT",
                "icon": "https://user-uploads.online-go.com/c5389eaa972e9dbf1be046e179c3d68a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1278.8474909084346,
                        "deviation": 63.40216235751937,
                        "volatility": 0.059996834135477885
                    }
                },
                "ranking": 20.61082213648176,
                "professional": false,
                "ui_class": ""
            },
            "description": "hello this is a tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 39,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": "2025-09-13T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-09-13T11:17:38.171628Z",
            "ended": "2025-09-13T13:45:43.081992Z",
            "start_waiting": "2025-09-13T11:17:38.094026Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        }
    ]
}