List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-player_count&page=5308
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59609,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-player_count&page=5309",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-player_count&page=5307",
    "results": [
        {
            "id": 75745,
            "name": "Happy go testing",
            "director": {
                "id": 909840,
                "username": "Hapapaya",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/e0b41229bd9325d80c1b3b85700f128c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1673.10908647169,
                        "deviation": 62.156059131346794,
                        "volatility": 0.06005106213193024
                    }
                },
                "ranking": 26.83179082472548,
                "professional": false,
                "ui_class": ""
            },
            "description": "Happy go testing",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "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": 9286,
                "name": "Happy GO Academy",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 52,
                "icon": "https://user-uploads.online-go.com/6cca37d3fe9d8294ffa9521edb4f96ef-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-05-30T13:20:00Z",
            "players_start": 2,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-05-30T13:20:03.556386Z",
            "ended": "2021-05-31T12:43:32.789140Z",
            "start_waiting": "2021-05-30T13:20:03.460917Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6cca37d3fe9d8294ffa9521edb4f96ef-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 67510,
            "name": "Freitagsturnier",
            "director": {
                "id": 865290,
                "username": "Carsten.Schwarz",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/debd3c0fddbd76f1ae21973b93e99472?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1606.3774663710713,
                        "deviation": 160.1112853853231,
                        "volatility": 0.060024269947845106
                    }
                },
                "ranking": 25.8895395020858,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Freitagsturnier test",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "live",
                "pause_on_weekends": false,
                "total_time": 900
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7187,
                "name": "Canisius_Kolleg",
                "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": "2020-11-06T15:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-11-06T14:55:40.100559Z",
            "ended": "2020-11-06T15:09:04.047325Z",
            "start_waiting": "2020-11-06T14:55:39.986090Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 80953,
            "name": "In jedem siebten Ei",
            "director": {
                "id": 522816,
                "username": "RufusGoldstreiff",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/4ff1a2b835bdb6c41c4679349208dc90?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1153.4641900213853,
                        "deviation": 64.81230610804766,
                        "volatility": 0.06007891407607496
                    }
                },
                "ranking": 18.221984723465166,
                "professional": false,
                "ui_class": ""
            },
            "description": "Der Spaß für die ganze Familie",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 20,
                "initial_time": 300,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2321,
                "name": "Schulis Beginner Tournaments",
                "summary": "A group of brothers playing each other, but hosting public tournaments as well. Beginner level!",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 14,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-10-04T20:17:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-10-04T20:17:07.852545Z",
            "ended": "2021-10-04T20:37:45.902647Z",
            "start_waiting": "2021-10-04T20:17:07.644828Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 59566,
            "name": "Mill Cats Invitational I",
            "director": {
                "id": 486499,
                "username": "gx9234",
                "country": "st",
                "icon": "https://secure.gravatar.com/avatar/12a7bf90f13012d90f0c2e9e9d51d381?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1350.5821525802473,
                        "deviation": 63.442470236174756,
                        "volatility": 0.06002507848587301
                    }
                },
                "ranking": 21.874266931554715,
                "professional": false,
                "ui_class": ""
            },
            "description": "Another tournament - round robin; first of the 2020 season.",
            "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": false,
            "group": {
                "id": 1955,
                "name": "Mill Cats Go",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 12,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2020-04-26T21:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2020-04-27T10:56:39.977363Z",
            "ended": "2020-05-13T19:22:38.410088Z",
            "start_waiting": "2020-04-27T10:56:39.793700Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 61431,
            "name": "Harry Potter!",
            "director": {
                "id": 654168,
                "username": "Melovy",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/c279d2a10883516ad8f855553763576f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1604.2274745860072,
                        "deviation": 107.58418581163765,
                        "volatility": 0.05976481318080775
                    }
                },
                "ranking": 25.858534555554265,
                "professional": false,
                "ui_class": ""
            },
            "description": "I like to read Harry Potter",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "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": 518400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5690,
                "name": "funny group",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 10,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-06-03T11:30:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-03T16:11:35.825107Z",
            "ended": "2020-07-08T20:00:45.510824Z",
            "start_waiting": "2020-06-03T16:11:35.536607Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 59421,
            "name": "Tiny round robin",
            "director": {
                "id": 731399,
                "username": "Cool Person",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/d4d690ca415d15d2331919c86a651956-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 623.7169842830638,
                        "deviation": 72.85794169420086,
                        "volatility": 0.05988984500873753
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "this is a round robin for only 2 to 3 people",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "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": 5310,
                "name": "24 and 25k group",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 18,
                "icon": "https://user-uploads.online-go.com/f5f3b05fe766ea36e99f24c9791f3725-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-04-22T14:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 8,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2020-04-21T18:46:00.634111Z",
            "ended": "2020-05-16T20:49:03.540308Z",
            "start_waiting": "2020-04-21T18:46:00.335404Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f5f3b05fe766ea36e99f24c9791f3725-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 60232,
            "name": "MAY 8",
            "director": {
                "id": 628342,
                "username": "Aegenesee",
                "country": "tr",
                "icon": "https://secure.gravatar.com/avatar/7c247a2ad1429e10d9a0b280b63dacca?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1389.4866582751092,
                        "deviation": 61.3227798520018,
                        "volatility": 0.060023687831280335
                    }
                },
                "ranking": 22.531695556446603,
                "professional": false,
                "ui_class": ""
            },
            "description": "may 8",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4030,
                "name": "ACI Go Club",
                "summary": "American Collegiate Institute Go Club",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 33,
                "icon": "https://user-uploads.online-go.com/9ce7fec4c17310ffc74a763e3d8ddfed-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-08T15:06:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-08T15:06:26.843020Z",
            "ended": "2020-05-08T15:33:48.521359Z",
            "start_waiting": "2020-05-08T15:06:26.654148Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9ce7fec4c17310ffc74a763e3d8ddfed-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 57909,
            "name": "Live 9x9 Double Elimination Tournament 2020-03-24 14:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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 Sitewide Tournament",
            "schedule": {
                "id": 2,
                "name": "Live 9x9 Double Elimination Tournament",
                "rrule": "DTSTART:20260511T140000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:22:51.496184Z",
                "last_run": "2026-05-11T14:00:49.624648Z",
                "lead_time_seconds": 1800,
                "tournament_type": "double_elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 300,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-05-11T18:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-03-24T14:30:49.416938Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-03-24T14:30:51.297488Z",
            "ended": "2020-03-24T15:05:47.389271Z",
            "start_waiting": "2020-03-24T14:30:50.760597Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 59025,
            "name": "leo and colin join this tournament",
            "director": {
                "id": 729505,
                "username": "alexthelegend",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/931ed75fe0f03081ab93ef90afda81e2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1631.3899572977048,
                        "deviation": 65.06885328290677,
                        "volatility": 0.05985396403911523
                    }
                },
                "ranking": 26.247224665007067,
                "professional": false,
                "ui_class": ""
            },
            "description": "thdfuahdfudhfus",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 300,
                "period_time": 20,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8885,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-14T20:45:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-14T20:45:32.931996Z",
            "ended": "2020-04-14T21:17:00.162156Z",
            "start_waiting": "2020-04-14T20:45:32.611884Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 58244,
            "name": "5530(1)",
            "director": {
                "id": 658008,
                "username": "Rostik5530",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/bd661a6a4be002b875d8bb2984386a62-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1066.2179152892568,
                        "deviation": 90.87263334791726,
                        "volatility": 0.05999830960632041
                    }
                },
                "ranking": 16.401190337277747,
                "professional": false,
                "ui_class": ""
            },
            "description": "крякрякря",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4944,
                "name": "Lullaby in Cozy Tavern",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 3,
                "icon": "https://user-uploads.online-go.com/32754fe9b1c78706b26bac7bf5405e91-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-03-30T20:35:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-03-30T20:35:11.567577Z",
            "ended": "2020-03-30T20:53:25.222916Z",
            "start_waiting": "2020-03-30T20:35:10.862254Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/32754fe9b1c78706b26bac7bf5405e91-15.png",
            "player_count": 3,
            "ranked": true
        }
    ]
}