List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=17
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59363,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=18",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=16",
    "results": [
        {
            "id": 1835,
            "name": "aapman's mini-tournament",
            "director": {
                "id": 43672,
                "username": "aapman",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/c4aaaaf99cd2b01ba8198457b4ad66db?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1467.972783067359,
                        "deviation": 80.86908584816096,
                        "volatility": 0.060026094636378126
                    }
                },
                "ranking": 23.803742255060573,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-05-23T06:52:36Z",
            "ended": "2012-05-23T04:52:36Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 1920,
            "name": "Amane's IGo Marathon 22",
            "director": {
                "id": 7425,
                "username": "masutami",
                "country": "sg",
                "icon": "https://secure.gravatar.com/avatar/966aad8981dcc75b5b8ab04427a833b2?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1464.8658156740034,
                        "deviation": 64.25957956452444,
                        "volatility": 0.05979175956401998
                    }
                },
                "ranking": 23.75469330835485,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-02-22T18:50:13Z",
            "ended": "2013-02-22T17:50:13Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 130102,
            "name": "参加条件:仅限成员",
            "director": {
                "id": 1569784,
                "username": "1213456789lkjh",
                "country": "cn",
                "icon": "https://secure.gravatar.com/avatar/9ace486d650a01ecd9da27a2cd4a059b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 736.9995434729591,
                        "deviation": 61.38914328321541,
                        "volatility": 0.060106027679138134
                    }
                },
                "ranking": 7.852225585154122,
                "professional": false,
                "ui_class": ""
            },
            "description": "无                                       \n九中",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 6,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "blitz",
                "pause_on_weekends": false,
                "time_increment": 5,
                "initial_time": 30,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15479,
                "name": "林",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 4,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-07-03T11:00:00Z",
            "players_start": 0,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 6,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2025-07-03T11:00:30.154985Z",
            "ended": "2025-07-03T11:00:30.130379Z",
            "start_waiting": "2025-07-03T11:00:30.067303Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 1339,
            "name": ":D lets do it!",
            "director": {
                "id": 34338,
                "username": "squallleonhart",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/2a4c1a3eb98eac84383065728fbaf2f9?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1228.5932544252187,
                        "deviation": 75.50210190466538,
                        "volatility": 0.06000804527856503
                    }
                },
                "ranking": 19.682751245683903,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2011-03-18T21:49:44Z",
            "ended": "2011-03-18T20:49:44Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 2118,
            "name": "Fast 9s",
            "director": {
                "id": 40478,
                "username": "Stanic",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/ec8173b2433180a980be2b052846d860?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1092.8051630458729,
                        "deviation": 68.22353892298294,
                        "volatility": 0.06000980987471577
                    }
                },
                "ranking": 16.971379611401503,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-03-28T16:25:45Z",
            "ended": "2013-03-28T15:25:45Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 59208,
            "name": "Bad People 6",
            "director": {
                "id": 748237,
                "username": "PAPA LOUIE",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/5ca63bebc1e9733a922cf80a18e54a3a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 547.3072455519224,
                        "deviation": 78.58011345147807,
                        "volatility": 0.059984484173782465
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "please join",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 4456,
                "name": "Our Go House",
                "summary": "Hello this is Our Go House 🔰🔰\n😃🙃😊👋 YEET",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 160,
                "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-17T19:42:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 6,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-17T19:42:51.818148Z",
            "ended": "2020-05-15T22:59:41.776944Z",
            "start_waiting": "2020-04-17T19:42:51.619554Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 59218,
            "name": "Bad people Chapionship",
            "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 for people such as me who aren't very good at go and want to play people their level.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 19440,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 18000,
                "initial_time": 129600,
                "max_time": 129600
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": false,
            "time_start": "2020-04-19T06:59:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 6,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-19T06:59:22.908430Z",
            "ended": "2020-05-29T17:41:59.760058Z",
            "start_waiting": "2020-04-19T06:59:22.495587Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f5f3b05fe766ea36e99f24c9791f3725-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 2168,
            "name": "Mandrel's mini-tournament",
            "director": {
                "id": 29157,
                "username": "Mandrel",
                "country": "gb",
                "icon": "https://secure.gravatar.com/avatar/50e65015484b6fa5bdbbbd568a82dc3d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1132.2750720362903,
                        "deviation": 62.744346365650195,
                        "volatility": 0.06000116776344252
                    }
                },
                "ranking": 17.79276504694859,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-05-06T10:54:33Z",
            "ended": "2013-05-06T08:54:33Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 174,
            "name": "fycorsia's crazy 9s",
            "director": {
                "id": 3869,
                "username": "Apoah",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/f7b49917401db185d92e47f8a5309c79?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1524.3941511783207,
                        "deviation": 66.17582682477338,
                        "volatility": 0.059977397267166124
                    }
                },
                "ranking": 24.676836711199595,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2007-01-20T00:52:00Z",
            "ended": "2007-03-15T20:07:00Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 333,
            "name": "Hiroyuki's Mini-Tournament",
            "director": {
                "id": 11730,
                "username": "Hiroyuki",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/1b923e266e519ac822211434699f3baa?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1036.220184833584,
                        "deviation": 78.67575011076686,
                        "volatility": 0.06000879578292584
                    }
                },
                "ranking": 15.74053393987467,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 6,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2007-09-30T10:46:00Z",
            "ended": "2007-11-19T23:14:00Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}