List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=4518
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58890,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=4519",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=4517",
    "results": [
        {
            "id": 128978,
            "name": "Турнир го группы татарстан.",
            "director": {
                "id": 1687058,
                "username": "Kaw_Ninja",
                "country": "pt",
                "icon": "https://user-uploads.online-go.com/65362065d6e8e89c6607395ba8eb3d2f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 952.4415334467215,
                        "deviation": 70.79654177968679,
                        "volatility": 0.06431646549167647
                    }
                },
                "ranking": 13.788845156340887,
                "professional": false,
                "ui_class": ""
            },
            "description": "Турнир го группы татарстан.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "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": 15184,
                "name": "Татарстан",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 32,
                "icon": "https://user-uploads.online-go.com/742f13972d1ab21b905676569922fa19-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-06-07T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-07T11:00:42.143306Z",
            "ended": "2025-09-26T15:19:11.185838Z",
            "start_waiting": "2025-06-07T11:00:41.905319Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/742f13972d1ab21b905676569922fa19-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 115327,
            "name": "me and bobs epic duel of fate a",
            "director": {
                "id": 1550940,
                "username": "jurrasicore",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/77cda62fc37a5c2d37779428b3a9915d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 603.2791548001985,
                        "deviation": 217.92720754173664,
                        "volatility": 0.05999962067713265
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "we will gifugre who will battle the winner",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14237,
                "name": "pokemonGOtothepolls",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 2,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2024-04-23T22:05:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2024-04-23T22:01:45.470755Z",
            "ended": "2024-04-23T22:58:32.093512Z",
            "start_waiting": "2024-04-23T22:01:45.415210Z",
            "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": 115120,
            "name": "Go Zodiac Friendship Games Online ราศีเมษ รุ่น F2 กระดาน 9x9 (ต่ำกว่า 8 คิว)",
            "director": {
                "id": 912815,
                "username": "cp06",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/4da1ef892b79d62ea729b1964f8d22fc-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1714.2976090919533,
                        "deviation": 165.413817348452,
                        "volatility": 0.05999825538800575
                    }
                },
                "ranking": 27.394794550290733,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "OGS เปลี่ยนแต้มต่อ กระดาน 9x9 เป็น 6.5 คะแนน",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 21,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "blitz",
                "pause_on_weekends": false,
                "main_time": 300,
                "period_time": 10,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10408,
                "name": "Zodiac กลุ่ม F(ต่ำกว่า 8 คิว) กระดาน 9",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 928,
                "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-04-26T10:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2024-04-26T10:00:25.852869Z",
            "ended": "2024-04-26T10:46:55.544659Z",
            "start_waiting": "2024-04-26T10:00:25.390238Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-15.png",
            "player_count": 28,
            "ranked": true
        },
        {
            "id": 69296,
            "name": "1223 test",
            "director": {
                "id": 895468,
                "username": "microgo",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/4134020f2f298c111575624a380fabfc?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1222.7926816943723,
                        "deviation": 239.45189696836508,
                        "volatility": 0.05999893115789494
                    }
                },
                "ranking": 19.573194029610143,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "1223 test",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 32,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 30,
                "initial_time": 180,
                "max_time": 600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7632,
                "name": "nctumicro",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 5,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-12-23T12:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-12-23T12:00:32.758468Z",
            "ended": "2020-12-23T13:05:14.420171Z",
            "start_waiting": "2020-12-23T12:00:32.708428Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 63641,
            "name": "GPU AI",
            "director": {
                "id": 809878,
                "username": "Fat Fish AI",
                "country": "zz",
                "icon": "https://secure.gravatar.com/avatar/1059478efdd4b515af4c3592edb6da40?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 3026.801451997034,
                        "deviation": 82.6806530544709,
                        "volatility": 0.059966472681459534
                    }
                },
                "ranking": 38,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "AI对局(GPU須高於1060Ti)",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 1840,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 1800,
                "initial_time": 3600,
                "max_time": 3600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5590,
                "name": "AI Communicate Group",
                "summary": "",
                "require_invitation": true,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 87,
                "icon": "https://user-uploads.online-go.com/ace88ed00bb92d5712f408e9dcb98ac2-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-01-01T06:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-01-01T06:00:20.744826Z",
            "ended": "2021-01-01T08:00:40.338309Z",
            "start_waiting": "2021-01-01T06:00:20.642490Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ace88ed00bb92d5712f408e9dcb98ac2-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 115491,
            "name": "Tournament for Go players",
            "director": {
                "id": 1553164,
                "username": "noob_bot_6",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/64ee989429dd88ae846061da2bff367a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1631.0621051788066,
                        "deviation": 156.62944829321958,
                        "volatility": 0.05999171913807443
                    }
                },
                "ranking": 26.242571860041537,
                "professional": false,
                "ui_class": ""
            },
            "description": "Try your best and we might succeed!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14245,
                "name": "New players to GO chess",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 1,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2024-04-28T12:50:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-04-28T12:50:25.280437Z",
            "ended": "2024-04-28T12:51:32.500700Z",
            "start_waiting": "2024-04-28T12:50:25.224310Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 105146,
            "name": "Lviv Summer 2023",
            "director": {
                "id": 79,
                "username": "oldyew",
                "country": "ua",
                "icon": "https://user-uploads.online-go.com/bb1683794b493824cb4605735bcfb9b7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1705.3371445600435,
                        "deviation": 62.790139205239456,
                        "volatility": 0.06003537827844153
                    }
                },
                "ranking": 27.273474442381108,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hot summer in Lviv",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 26243,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 259200,
                "period_time": 604800,
                "stones_per_period": 25
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1460,
                "name": "Lviv Club",
                "summary": "Lviv Go Players Group",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 27,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-07-10T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-07-10T05:00:12.583174Z",
            "ended": "2023-08-22T09:56:34.002880Z",
            "start_waiting": "2023-07-10T05:00:12.364774Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 70935,
            "name": "Trolling again",
            "director": {
                "id": 839251,
                "username": "Mapledge",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/014310fdc5f118f1a485818badd3b773-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 811.822879557998,
                        "deviation": 98.79461305451053,
                        "volatility": 0.06001611392915813
                    }
                },
                "ranking": 10.090712867300997,
                "professional": false,
                "ui_class": ""
            },
            "description": "Another tournament for fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": -1,
            "rules": "aga",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 10,
                "initial_time": 60,
                "max_time": 180
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6730,
                "name": "Stony Brook Go Club",
                "summary": "ALL PLAYERS WELCOME!!!\n\nWe are a club group based at Stony Brook University. \n\nOur meetings times are Tuesdays and Thursdays 8-10PM via Zoom.\n\nRegardless of whether you are a beginner or a master, don't hesitate to come by to simply have some fun. \n\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 35,
                "icon": "https://user-uploads.online-go.com/bfaca7135d50ab09bc002ea3020d5f21-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-02-03T03:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-02-03T02:35:11.963487Z",
            "ended": "2021-02-03T03:19:05.053629Z",
            "start_waiting": "2021-02-03T02:35:11.690297Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bfaca7135d50ab09bc002ea3020d5f21-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 58821,
            "name": "BTS LEAGUE B3",
            "director": {
                "id": 458415,
                "username": "ThunwaKulthong",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/d89a957742581d306b6f2cce6e9f2e87-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1283.2564198927048,
                        "deviation": 221.54191726201495,
                        "volatility": 0.05999736064886314
                    }
                },
                "ranking": 20.690496349774634,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "For Kyu",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "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": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4889,
                "name": "BTS Online League",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 28,
                "icon": "https://user-uploads.online-go.com/5a7332d2f57995981a77a1282a4f60fb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-11T03:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-11T02:45:01.126970Z",
            "ended": "2020-04-11T03:53:09.183063Z",
            "start_waiting": "2020-04-11T02:44:59.789089Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5a7332d2f57995981a77a1282a4f60fb-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 99892,
            "name": "13x13 Round Robin.",
            "director": {
                "id": 126731,
                "username": "Sofiam",
                "country": "it",
                "icon": "https://secure.gravatar.com/avatar/8f70a40f5bfe9550f48b31d5e9993f71?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1655.3956644095636,
                        "deviation": 249.9443167736772,
                        "volatility": 0.05999902471543515
                    }
                },
                "ranking": 26.585392142653802,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Everyone is welcome. It is capped at 10 players. An identical tournament that starts after two weeks or at 10 players will be created as soon as this tournament starts.\n\nPauses are not allowed.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 90782,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6630,
                "name": "Go friends 🐬",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 360,
                "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-02-22T16:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-02-22T14:45:47.750053Z",
            "ended": "2023-06-08T22:07:31.345167Z",
            "start_waiting": "2023-02-22T14:45:47.039607Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}