List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-players_start&page=717
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60286,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-players_start&page=718",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-players_start&page=716",
    "results": [
        {
            "id": 124031,
            "name": "9x9 New Zealand Open D.E. #14",
            "director": {
                "id": 178104,
                "username": "dexonsmith",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/448e520df4ffd817b1802a450a4c9058-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1390.7732166446785,
                        "deviation": 67.55416504748428,
                        "volatility": 0.06064009346038413
                    }
                },
                "ranking": 22.55312076827671,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "All players welcome. 8 players. Starts only when full.\n\nNew Zealand rules. 9x9 board. Even games. Double-elimination.\n\nFor more tournaments and ladders with New Zealand rules: <https://online-go.com/group/14024>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "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": 14024,
                "name": "New Zealand Ladders",
                "summary": "Group for ladders and tournaments that use New Zealand rules.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 79,
                "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-02-08T04:09:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-01-30T17:26:16.995217Z",
            "ended": "2025-04-13T18:45:12.415873Z",
            "start_waiting": "2025-01-30T17:26:16.869901Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 126486,
            "name": "19x19 Open D.E. Cup #104",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1334.061355817773,
                        "deviation": 72.03757578940535,
                        "volatility": 0.06023505067349031
                    }
                },
                "ranking": 21.589341747434993,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 80,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-03-23T22:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-03-23T06:05:28.142421Z",
            "ended": "2025-08-29T03:59:44.071252Z",
            "start_waiting": "2025-03-23T06:05:28.049578Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 138918,
            "name": "19x19 Open D.E. Cup #168",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1334.061355817773,
                        "deviation": 72.03757578940535,
                        "volatility": 0.06023505067349031
                    }
                },
                "ranking": 21.589341747434993,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 80,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-04-12T21:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-04-09T06:56:35.502973Z",
            "ended": null,
            "start_waiting": "2026-04-09T06:56:35.308532Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 50773,
            "name": "19x19 D.E. (Chinese Rules)",
            "director": {
                "id": 637865,
                "username": "John.Tromp.Math.Maniac",
                "country": "nl",
                "icon": "https://user-uploads.online-go.com/d3a7d663721e94d8a2a5d3846f290611-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n \n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n \n☆ Does NOT pause on the weekend.\n \n☆ If this sounds like a good time to you, please join us!\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.<BR><BR>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 591,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-09-01T01:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-09-01T01:00:34.230967Z",
            "ended": "2020-06-15T23:20:29.370085Z",
            "start_waiting": "2019-09-01T01:00:33.181040Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 18,
            "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": 714,
                "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": 70554,
            "name": "Discord",
            "director": {
                "id": 740288,
                "username": "wopi-wopi-ersak",
                "country": "_Scotland",
                "icon": "https://user-uploads.online-go.com/d4c5efd04928b5b667798cf4056865de-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1391.4174133704169,
                        "deviation": 61.424121737957705,
                        "volatility": 0.05994744492921651
                    }
                },
                "ranking": 22.56384120871416,
                "professional": false,
                "ui_class": ""
            },
            "description": "We can use discord while playing",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 439680,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 691200,
                "period_time": 432000,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4568,
                "name": "Scotland Youth Team",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 64,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-02-15T14:00:00Z",
            "players_start": 7,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 37,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-02-15T14:00:45.963671Z",
            "ended": "2021-12-28T15:04:06.226969Z",
            "start_waiting": "2021-02-15T14:00:45.520136Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 21,
            "ranked": true
        },
        {
            "id": 100660,
            "name": "LIHKG League S Season 1",
            "director": {
                "id": 872222,
                "username": "daromorado",
                "country": "hk",
                "icon": "https://secure.gravatar.com/avatar/36300931508b43b32974d72afe3dc031?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1711.3240079891204,
                        "deviation": 63.72293049202183,
                        "volatility": 0.06003053186331819
                    }
                },
                "ranking": 27.354603956865294,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "LIHKG League S Season 1",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 4787,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "total_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 8905,
                "name": "LIHKG囲碁",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 77,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-03-02T06:00:00Z",
            "players_start": 7,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2023-03-02T06:06:50.842981Z",
            "ended": "2023-03-10T19:07:36.919235Z",
            "start_waiting": "2023-03-02T06:06:50.513592Z",
            "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": 84321,
            "name": "ad kalendas graecas",
            "director": {
                "id": 301008,
                "username": "mokotower",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/93a4b006f9047f90c9de46517068a909-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1162.931563299575,
                        "deviation": 71.84988309673331,
                        "volatility": 0.059598738540048934
                    }
                },
                "ranking": 18.41121915066654,
                "professional": false,
                "ui_class": ""
            },
            "description": "Take your time ;)",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 2446080,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 2419200,
                "period_time": 2419200,
                "periods": 300
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2952,
                "name": "Nonsensuji - Weiqi/Go/Baduk Club",
                "summary": "Krótki opis, opis grupy.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 5,
                "icon": "https://user-uploads.online-go.com/5d71b893361a4c2fe012e8eda6603000-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-02-22T01:22:00Z",
            "players_start": 7,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-02-22T01:22:06.876036Z",
            "ended": null,
            "start_waiting": "2022-02-22T01:22:06.052791Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/5d71b893361a4c2fe012e8eda6603000-15.png",
            "player_count": 17,
            "ranked": true
        },
        {
            "id": 61741,
            "name": "Турнир для начинающих.",
            "director": {
                "id": 776814,
                "username": "Korotrov 19",
                "country": "ua",
                "icon": "https://user-uploads.online-go.com/1c0b386e473e055af29bcaff72788ef6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1627.5011666778498,
                        "deviation": 60.69603575167428,
                        "volatility": 0.06006221360900416
                    }
                },
                "ranking": 26.191975476154177,
                "professional": false,
                "ui_class": ""
            },
            "description": "Турнир для того чтобы люди начали понимать игру GO.",
            "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": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "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": 18057,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-06-30T12:00:00Z",
            "players_start": 7,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 7,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-30T13:12:19.010360Z",
            "ended": "2020-07-11T10:09:04.308682Z",
            "start_waiting": "2020-06-30T13:12:17.959296Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 121006,
            "name": "Go Hadouken #3",
            "director": {
                "id": 1436588,
                "username": "Arrow A6 anti-",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/8670729a0e8d1142fea14d8bd6800517-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 588.6751839572613,
                        "deviation": 80.73457404236709,
                        "volatility": 0.0636275307525229
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "<H2><a Href=\"https://online-go.com/group/13797\"><span  style=\"color:gold;\"><u>Go advance forward forever&#20<a Href=\"https://online-go.com/group/13797\">\nwelcome to join</u>\n</a></h2>\n\n<!-- &nbsp;&nbsp; Go Hadouken ! <br>\n【<big><big><span  style=\"color:red;\">&nbsp;Handicap auto</big></big>  】 Enjoy have fun ! -->\n\n\n<p>\n<embed src=\"https://www.youtube.com/embed/If1XzxX0rYI\"width=\"320\" height=\"180\">\n</p>\n\n\n<p>\n<embed src=\"https://www.youtube.com/embed/heKQ0Fa3TTs\"width=\"320\" height=\"180\">\n</p>\n\n\n\n<a href=\"https://info.flagcounter.com/cfLK\"><img src=\"https://s01.flagcounter.com/mini/cfLK/bg_000000/txt_CCCCCC/border_FFFFFF/flags_0/\" alt=\"Flag Counter\" border=\"0\"></a>",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 259200,
                "period_time": 172800,
                "stones_per_period": 2
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 496,
                "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-10-17T04:04:00Z",
            "players_start": 7,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-10-17T04:04:44.166110Z",
            "ended": "2025-10-12T16:33:58.037646Z",
            "start_waiting": "2024-10-17T04:04:43.643192Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png",
            "player_count": 42,
            "ranked": true
        }
    ]
}