List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4935
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59231,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4936",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4934",
    "results": [
        {
            "id": 65396,
            "name": "Sunday 9x9 tournament",
            "director": {
                "id": 56637,
                "username": "milanm",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/3ca6488bbc5b99dee6389c8324babd42-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1664.0568123659991,
                        "deviation": 68.273894875801,
                        "volatility": 0.059924055060653174
                    }
                },
                "ranking": 26.706198830870335,
                "professional": false,
                "ui_class": "aga"
            },
            "description": "weekly 9x9 tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 30,
                "initial_time": 120,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5803,
                "name": "Massachusetts Go Foundation",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 49,
                "icon": "https://user-uploads.online-go.com/ac9f8e424d9bbcbeaadc6a8c635f8262-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-09-13T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-09-13T17:00:54.582040Z",
            "ended": "2020-09-13T17:23:32.612401Z",
            "start_waiting": "2020-09-13T17:00:54.169185Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ac9f8e424d9bbcbeaadc6a8c635f8262-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 59203,
            "name": "Roaring 20k's Tournament",
            "director": {
                "id": 732780,
                "username": "BigGoBoi",
                "country": "zw",
                "icon": "https://user-uploads.online-go.com/ce74d35dbb2f714d5b06a89e3f095d7e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1024.3862819544136,
                        "deviation": 66.17150289581252,
                        "volatility": 0.06001629097804158
                    }
                },
                "ranking": 15.474633713013718,
                "professional": false,
                "ui_class": ""
            },
            "description": "A Zimbabwe Go Society Tournament for 25k-20k players for some fun. Here's to a good tournament and better decade!",
            "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": 4803,
                "name": "Zimbabwe Go Society",
                "summary": "For go players who live in Zimbabwe/have Zimbabwe heritage. We always welcome new members!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3,
                "icon": "https://user-uploads.online-go.com/534c834209842be80bf88045c0a28dc1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-18T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-18T17:00:47.179068Z",
            "ended": "2020-05-11T14:08:36.218700Z",
            "start_waiting": "2020-04-18T17:00:46.582045Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/534c834209842be80bf88045c0a28dc1-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 74102,
            "name": "Doda gope",
            "director": {
                "id": 750170,
                "username": "KXD",
                "country": "001",
                "icon": "https://user-uploads.online-go.com/b07ba91a11584321d88e18bbc5cfe173-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1250.0368223333508,
                        "deviation": 65.16053526131871,
                        "volatility": 0.06035699645317133
                    }
                },
                "ranking": 20.0833200819338,
                "professional": false,
                "ui_class": ""
            },
            "description": "D\nE\nA\nDplay",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 20,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 0,
                "period_time": 20,
                "periods": 1
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8738,
                "name": "MINECRAFT",
                "summary": "HI! This a Group Where People Talk About Minecraft Experiences",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 33,
                "icon": "https://user-uploads.online-go.com/111be862b965122bc3da49c05e0131ba-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-04-19T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-04-19T05:40:18.530577Z",
            "ended": "2021-04-19T05:45:57.436600Z",
            "start_waiting": "2021-04-19T05:40:18.383179Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/111be862b965122bc3da49c05e0131ba-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 104267,
            "name": "13×13",
            "director": {
                "id": 1315799,
                "username": "shu423423",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/401681486fe3d60c44d4ae3a3d6311f4-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1308.7408446004215,
                        "deviation": 61.67921833541507,
                        "volatility": 0.0599767771217148
                    }
                },
                "ranking": 21.14573096850031,
                "professional": false,
                "ui_class": ""
            },
            "description": "13×13",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": true,
            "group": {
                "id": 13127,
                "name": "日韓交流囲碁会/한일교류바둑회 (日本,韓国/일본,한국)",
                "summary": "日本人と韓国人が囲碁を通して囲碁仲間を増やし交流していきたい。한국사람과 일본사람이 바둑을 통해서 바둑 친구를 만들어 교류를 해 간다.日韓戦もしたいですね。한일전도 하고 싶습니다.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 6,
                "icon": "https://user-uploads.online-go.com/a40e6c9c3b2abcf9a7adf7af9fcde7cd-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-06-15T07:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-06-15T07:00:26.144435Z",
            "ended": "2023-10-16T17:56:00.830861Z",
            "start_waiting": "2023-06-15T07:00:26.042151Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a40e6c9c3b2abcf9a7adf7af9fcde7cd-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 59126,
            "name": "der22",
            "director": {
                "id": 466732,
                "username": "percehaie",
                "country": "fr",
                "icon": "https://user-uploads.online-go.com/66b39481d5e6b5acbfc866e326c84706-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1074.7077479286818,
                        "deviation": 63.190905096195884,
                        "volatility": 0.06013100534072089
                    }
                },
                "ranking": 16.584793774982078,
                "professional": false,
                "ui_class": ""
            },
            "description": "9X9temps reel",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "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": 60
            },
            "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": 17874,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-16T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-25T13:57:16.292268Z",
            "ended": "2020-04-25T14:07:17.059613Z",
            "start_waiting": "2020-04-25T13:57:15.894206Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 131286,
            "name": "Correspondence 13x13 RoundRobin 2025-08-11 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": 7,
                "name": "Correspondence 13x13 RoundRobin",
                "rrule": "DTSTART:20260401T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T06:00:14.582400Z",
                "last_run": "2026-04-01T19:00:13.781457Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "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": "2026-04-04T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 90782,
            "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": "2025-08-11T19:00:53.518070Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-11T19:01:53.477171Z",
            "ended": "2025-09-19T07:25:12.429331Z",
            "start_waiting": "2025-08-11T19:01:53.205435Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 60125,
            "name": "ai testing Match",
            "director": {
                "id": 718275,
                "username": "GaoGo-test",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/5f65249c880feb2690ef5343e214a66b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2739.4018435897888,
                        "deviation": 66.62702284572559,
                        "volatility": 0.06006566152780052
                    }
                },
                "ranking": 38,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "ai testing",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 785280,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 691200,
                "period_time": 777600,
                "periods": 1
            },
            "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": false,
            "time_start": "2020-05-06T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-05-09T09:20:12.215065Z",
            "ended": "2020-07-29T01:21:16.672814Z",
            "start_waiting": "2020-05-09T09:20:11.142114Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ace88ed00bb92d5712f408e9dcb98ac2-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 30044,
            "name": "ワークスの碁リーグ戦(テスト)",
            "director": {
                "id": 43936,
                "username": "Sadaharu",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/7c560149f1de7fce503f52c3c38cdb3e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2317.8181826983164,
                        "deviation": 75.16100854517124,
                        "volatility": 0.06029512678253538
                    }
                },
                "ranking": 34.37736388316182,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "ワークスの碁リーグ戦(テスト)",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 24192,
            "time_control_parameters": {
                "period_time": 604800,
                "main_time": 0,
                "system": "canadian",
                "pause_on_weekends": false,
                "time_control": "canadian",
                "stones_per_period": 25,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1774,
                "name": "Works Go (ワークスの碁)",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 7,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2017-09-10T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2017-09-12T15:40:45.586503Z",
            "ended": "2017-10-09T08:10:19.686284Z",
            "start_waiting": "2017-09-12T15:40:45.255041Z",
            "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": 102935,
            "name": "蔡仲文 錢尚鋒",
            "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": "蔡仲文\n錢尚鋒",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 32,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1500,
                "period_time": 20,
                "periods": 3
            },
            "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": "2023-05-06T04:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2023-05-06T03:44:48.668189Z",
            "ended": "2023-05-06T04:51:54.781075Z",
            "start_waiting": "2023-05-06T03:44:48.597781Z",
            "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": 63918,
            "name": "uh tournament",
            "director": {
                "id": 787818,
                "username": "Ernie Ip",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/6ff93d62e603d6754e9948ca7f093372-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 848.0310294421083,
                        "deviation": 65.44134154669923,
                        "volatility": 0.0599842022485025
                    }
                },
                "ranking": 11.100864013221816,
                "professional": false,
                "ui_class": ""
            },
            "description": "uh, just go uh",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": 5925,
                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-08-04T09:00:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2020-08-04T08:44:38.632410Z",
            "ended": "2020-08-04T08:46:10.845070Z",
            "start_waiting": "2020-08-04T08:44:38.560064Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-15.png",
            "player_count": 2,
            "ranked": true
        }
    ]
}