List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=65
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59408,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=66",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=64",
    "results": [
        {
            "id": 2108,
            "name": "carokarm- fast 13x13",
            "director": {
                "id": 37953,
                "username": "carokarm",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/a0691435eb8d73bedb868dfc58a43deb-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1070.280775706649,
                        "deviation": 63.91998008727588,
                        "volatility": 0.059720797677923085
                    }
                },
                "ranking": 16.489236571459887,
                "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": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-04-24T08:59:37Z",
            "ended": "2013-04-24T06:59:37Z",
            "start_waiting": null,
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 127906,
            "name": "ooloolong 13 13",
            "director": {
                "id": 657233,
                "username": "oolooloo",
                "country": "155",
                "icon": "https://user-uploads.online-go.com/8f41f10dcbb391aafb7f3a83119225ea-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 781.2427902631725,
                        "deviation": 64.70211510280336,
                        "volatility": 0.060101201217058614
                    }
                },
                "ranking": 9.201840485418101,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "long correspondance 13 13",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 645699,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 604800,
                "initial_time": 2419200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 95,
                "name": "France Go Players",
                "summary": "Le groupe pour les joueurs français!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1304,
                "icon": "https://user-uploads.online-go.com/f860ac26e7c271a3637835570b1fc13f-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-05-02T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-05-02T08:00:49.557936Z",
            "ended": "2026-01-28T12:58:20.395415Z",
            "start_waiting": "2025-05-02T08:00:49.459495Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f860ac26e7c271a3637835570b1fc13f-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 58289,
            "name": "9x9 Beginners Championship",
            "director": {
                "id": 750750,
                "username": "begingo1000",
                "country": "ez",
                "icon": "https://secure.gravatar.com/avatar/d705f1ba732fe17b3a05d20723059c83?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1317.1885810619165,
                        "deviation": 64.49012040956917,
                        "volatility": 0.06003208049018038
                    }
                },
                "ranking": 21.294680724602816,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9 championship for beginners.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 15360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 4957,
                "name": "Beginners 9x9",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 32,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-02T21:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-02T21:00:13.872636Z",
            "ended": "2020-05-01T03:14:25.500796Z",
            "start_waiting": "2020-04-02T21:00:13.071404Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 2248,
            "name": "Amane's IGo Marathon 25",
            "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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-06-11T14:29:04Z",
            "ended": "2014-01-03T04:06:38.989954Z",
            "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": 320,
            "name": "Ryohei's Autumn Leaves Tournament",
            "director": {
                "id": 4007,
                "username": "retired 2020-05-17",
                "country": "_United_Federation_of_Planets",
                "icon": "https://secure.gravatar.com/avatar/3eda6fcd3204ef285fa52176c28c4d3e?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1265.2226592756992,
                        "deviation": 68.93303381814883,
                        "volatility": 0.060098255950306004
                    }
                },
                "ranking": 20.36285895208113,
                "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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2007-09-11T07:21:00Z",
            "ended": "2007-11-30T09:14:00Z",
            "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
        },
        {
            "id": 1977,
            "name": "carokarm's mini-tournament",
            "director": {
                "id": 37953,
                "username": "carokarm",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/a0691435eb8d73bedb868dfc58a43deb-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1070.280775706649,
                        "deviation": 63.91998008727588,
                        "volatility": 0.059720797677923085
                    }
                },
                "ranking": 16.489236571459887,
                "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": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-11-10T00:49:32Z",
            "ended": "2012-11-09T23:49:32Z",
            "start_waiting": null,
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 2802,
            "name": "2nd Week Tournament",
            "director": {
                "id": 52592,
                "username": "Lazy Satomi",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/0fee81bec9e326f5aacaee36c2ee806e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2154.48898811852,
                        "deviation": 62.96583598483079,
                        "volatility": 0.05991113495008934
                    }
                },
                "ranking": 32.68573000440283,
                "professional": false,
                "ui_class": ""
            },
            "description": "tournament for the 2nd week of February. Guys lets have fun and enjoy. Tournament will be activated in Saturday US time",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 191,
                "name": "Young and Old Players Association",
                "summary": "Welcomes to the Young and Old Players Association. We welcome all beginners and experienced players alike.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 96,
                "icon": "https://user-uploads.online-go.com/dd46257689e6a2e10f09419142e181ed-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-02-08T22:35:41.377681Z",
            "ended": "2014-05-03T05:45:10.839283Z",
            "start_waiting": "2014-02-08T22:35:41.032389Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/dd46257689e6a2e10f09419142e181ed-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 17791,
            "name": "Beginner Tournament",
            "director": {
                "id": 325466,
                "username": "siguyg",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/0fa64b15d99181f8154c006673926548-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1091.8712317747315,
                        "deviation": 142.90555574988895,
                        "volatility": 0.060003264560414646
                    }
                },
                "ranking": 16.951586739289898,
                "professional": false,
                "ui_class": ""
            },
            "description": "A relaxed tournament for beginners",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86640,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 21600,
                "max_time": 604800,
                "time_increment": 86400
            },
            "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": 8870,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2016-05-29T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-06-02T23:06:03.249884Z",
            "ended": "2016-10-04T21:52:22.090807Z",
            "start_waiting": "2016-06-02T23:06:03.030828Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 2853,
            "name": "Round Robin Nines",
            "director": {
                "id": 52052,
                "username": "ST000MA",
                "country": "rs",
                "icon": "https://secure.gravatar.com/avatar/da4a122c783bf3156553dfebd327d39d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1773.7204734712398,
                        "deviation": 64.7543915421217,
                        "volatility": 0.06233350490466346
                    }
                },
                "ranking": 28.18365079311867,
                "professional": false,
                "ui_class": ""
            },
            "description": "Starts when there are 10 participants. 1 move per day.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 88320,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "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": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-03-27T08:52:11.665260Z",
            "ended": "2014-05-10T02:14:15.586412Z",
            "start_waiting": "2014-03-27T08:49:52.206018Z",
            "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": 1910,
            "name": "Ferran's mini-tournament",
            "director": {
                "id": 16106,
                "username": "Ferran",
                "country": "_cat",
                "icon": "https://user-uploads.online-go.com/2a1a4ed028d9734d66a278df7b11d1d9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1297.7915684813977,
                        "deviation": 68.70602192447132,
                        "volatility": 0.060008699537978626
                    }
                },
                "ranking": 20.95123714073324,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 1728000,
                "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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-09-11T12:32:34Z",
            "ended": "2012-09-11T10:32:34Z",
            "start_waiting": null,
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}