List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=5621
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59550,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=5622",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=5620",
    "results": [
        {
            "id": 138268,
            "name": "我们的友谊赛 赛季一",
            "director": {
                "id": 1250228,
                "username": "Xuan Tian",
                "country": "my",
                "icon": "https://secure.gravatar.com/avatar/80dc35d1767b37d01fdf02be62fa5602?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 930.0685469568639,
                        "deviation": 68.08277334420664,
                        "volatility": 0.06022214309912406
                    }
                },
                "ranking": 13.238559630715367,
                "professional": false,
                "ui_class": ""
            },
            "description": "玩得开心,互相学习,加油",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 432000,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 16280,
                "name": "我们的友谊赛  Our friendly match",
                "summary": "A place to have a friendly match ",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 22,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2026-04-01T07:00:00Z",
            "players_start": 0,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2026-03-26T12:27:28.825054Z",
            "ended": null,
            "start_waiting": "2026-03-26T12:27:28.662315Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 79415,
            "name": "Practice 1",
            "director": {
                "id": 1044601,
                "username": "senseihk",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/cdd1c81710571c60e6ca7c93b8674063?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2326.49766407098,
                        "deviation": 249.480229604016,
                        "volatility": 0.060008490664285076
                    }
                },
                "ranking": 34.463891257409,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Games",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 16,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "live",
                "pause_on_weekends": false,
                "total_time": 1500
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10004,
                "name": "smart go academy",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 16,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-08-29T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2021-08-29T11:00:10.922243Z",
            "ended": "2021-08-29T11:50:16.085474Z",
            "start_waiting": "2021-08-29T11:00:10.816182Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 138162,
            "name": "GAMBATE 06",
            "director": {
                "id": 775143,
                "username": "c16896",
                "country": "pe",
                "icon": "https://user-uploads.online-go.com/00f634cd07ddcbcdfcdd7eb157515147-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1054.7275486904118,
                        "deviation": 90.80601680581353,
                        "volatility": 0.05999389210736036
                    }
                },
                "ranking": 16.150354477783242,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 114,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "live",
                "pause_on_weekends": false,
                "total_time": 14400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 16240,
                "name": "MBA 48P 49AD",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 43,
                "icon": "https://user-uploads.online-go.com/857b07f395f816e1a97388d7afa286d2-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-03-11T02:35:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2026-03-11T02:35:44.830683Z",
            "ended": "2026-03-11T07:33:32.231798Z",
            "start_waiting": "2026-03-11T02:35:44.693422Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/857b07f395f816e1a97388d7afa286d2-15.png",
            "player_count": 5,
            "ranked": false
        },
        {
            "id": 109574,
            "name": "9x9 Open D.E. Cup #105",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1337.2076426180156,
                        "deviation": 69.92527298576191,
                        "volatility": 0.06020446455517957
                    }
                },
                "ranking": 21.64387505961706,
                "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/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "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": 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": 697,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-11-19T20:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-11-16T15:25:50.352704Z",
            "ended": "2024-03-19T13:46:41.267389Z",
            "start_waiting": "2023-11-16T15:25:50.222070Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 76416,
            "name": "Strongest Master Go in The World: 4k - 2d",
            "director": {
                "id": 721084,
                "username": "Lexxgo",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/eadd3bb95af972db608b10e308217d0d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1702.0164192076516,
                        "deviation": 66.54857732174423,
                        "volatility": 0.059972624948633195
                    }
                },
                "ranking": 27.22835155459872,
                "professional": false,
                "ui_class": ""
            },
            "description": "Strongest Master Go in The World: 4k - 2d",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 58560,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
                "period_time": 259200,
                "stones_per_period": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 9239,
                "name": "World tournaments",
                "summary": "World tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/f00af69c1e00d870226552a84d04d87c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-06-17T07:00:00Z",
            "players_start": 30,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "random",
            "min_ranking": 26,
            "max_ranking": 31,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-06-25T13:34:40.058616Z",
            "ended": "2021-09-13T21:42:31.052443Z",
            "start_waiting": "2021-06-25T13:34:39.946415Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f00af69c1e00d870226552a84d04d87c-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 66621,
            "name": "9x9 double elimination - January 2021",
            "director": {
                "id": 126739,
                "username": "🐬Sofiam🐬",
                "country": "_Olimpic_Movement",
                "icon": "https://user-uploads.online-go.com/3448d55b1fa874861bc9029bd534f998-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1012.0554496406809,
                        "deviation": 84.91308607572303,
                        "volatility": 0.076882078105041
                    }
                },
                "ranking": 15.194279748149173,
                "professional": false,
                "ui_class": ""
            },
            "description": "Everyone is welcome",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 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": false,
            "time_start": "2020-12-31T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-12-31T23:00:04.499229Z",
            "ended": "2021-05-14T15:41:10.589051Z",
            "start_waiting": "2020-12-31T23:00:03.815669Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 126011,
            "name": "10 players",
            "director": {
                "id": 712973,
                "username": "Quaer",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/edf52860a753932736f51ad19c8eb8f6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 791.1538993112135,
                        "deviation": 62.04629715910138,
                        "volatility": 0.06003615916410888
                    }
                },
                "ranking": 9.49368186952557,
                "professional": false,
                "ui_class": ""
            },
            "description": "Swiss tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 177587,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 604800,
                "period_time": 172800,
                "stones_per_period": 1
            },
            "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": 17935,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-03-08T10:00:00Z",
            "players_start": 10,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 12,
            "max_ranking": 14,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-03-08T10:02:04.825754Z",
            "ended": "2025-09-23T05:32:05.469131Z",
            "start_waiting": "2025-03-08T10:02:04.754994Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 126958,
            "name": "CHEERFUL GO #90 Single Elimination",
            "director": {
                "id": 1220803,
                "username": "nobhaete",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1891.9276072623447,
                        "deviation": 71.09616239507386,
                        "volatility": 0.059846574283502416
                    }
                },
                "ranking": 29.677217129623607,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi everyone, welcome and have fun!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nSingle elimination tournament every Thursday.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "chinese",
            "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": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12619,
                "name": "Happy Go!!!",
                "summary": "Feel free to join and create tournaments!\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 71,
                "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-04-03T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 34,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-04-03T04:00:13.478985Z",
            "ended": "2025-08-16T15:08:08.157473Z",
            "start_waiting": "2025-04-03T04:00:13.371138Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 41213,
            "name": "U.S. Groups Handicap Fastplay Single Elimination  2018",
            "director": {
                "id": 467165,
                "username": "MummRa",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/68359dab5164ddcdffa8ad4ca0699079-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1247.96548084978,
                        "deviation": 64.85752922715939,
                        "volatility": 0.06002061271498367
                    }
                },
                "ranking": 20.044928150690506,
                "professional": false,
                "ui_class": ""
            },
            "description": "1 day per move. American go",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": -1,
            "rules": "aga",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "speed": "correspondence",
                "system": "simple",
                "pause_on_weekends": true,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1346,
                "name": "U.S group",
                "summary": "",
                "require_invitation": true,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 111,
                "icon": "https://user-uploads.online-go.com/3f6d3fb97d75388337a988c351963709-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-10-19T01:00:00Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2018-10-19T01:00:06.959363Z",
            "ended": "2019-03-11T20:51:53.767014Z",
            "start_waiting": "2018-10-19T01:00:05.897510Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/3f6d3fb97d75388337a988c351963709-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 59158,
            "name": "TEST 2",
            "director": {
                "id": 755983,
                "username": "袁老師",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/fe0808b21c82c7a9cb7addf61c922ef6?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1625.628468273391,
                        "deviation": 112.15342538501214,
                        "volatility": 0.06001071925002786
                    }
                },
                "ranking": 26.16532238960867,
                "professional": false,
                "ui_class": ""
            },
            "description": "TEST 2",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "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": 30,
                "max_time": 30
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5244,
                "name": "Mag1cShop",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 10,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-17T03:13:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "invite",
            "started": "2020-04-17T03:13:07.355344Z",
            "ended": "2020-04-17T03:18:30.591342Z",
            "start_waiting": "2020-04-17T03:13:07.065391Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        }
    ]
}