List all tournaments or create a new tournament.

GET /api/v1/tournaments/?ordering=-max_ranking&page=5861
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59963,
    "next": "https://online-go.com/api/v1/tournaments/?ordering=-max_ranking&page=5862",
    "previous": "https://online-go.com/api/v1/tournaments/?ordering=-max_ranking&page=5860",
    "results": [
        {
            "id": 129295,
            "name": "20k-15k Fast Correspondence Round-Robin #3",
            "director": {
                "id": 1408189,
                "username": "msaari",
                "country": "fi",
                "icon": "https://user-uploads.online-go.com/d84f8843f1ada4bb45291df34e84950f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 988.8943992786072,
                        "deviation": 62.67729136359411,
                        "volatility": 0.05974368983835584
                    }
                },
                "ranking": 14.658332019076823,
                "professional": false,
                "ui_class": ""
            },
            "description": "Fast round-robin tournament for mid-level DDK players (20k to 15k). No handicaps, NZ rules, Fischer time with 2-day main time and 12 hours per move.\n\nShort vacations are allowed.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "nz",
            "time_per_move": 44568,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 826,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-06-16T18:00:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 10,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-19T01:36:35.149769Z",
            "ended": "2025-07-17T10:05:17.638756Z",
            "start_waiting": "2025-06-19T01:36:34.843726Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 85880,
            "name": "SS 19*19 2022 -5",
            "director": {
                "id": 743533,
                "username": "ss76",
                "country": "ru",
                "icon": "https://secure.gravatar.com/avatar/13929beaec2a082c41c26666dd917e5a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 865.69965614538,
                        "deviation": 63.39878919317945,
                        "volatility": 0.06003400172803372
                    }
                },
                "ranking": 11.578235639193064,
                "professional": false,
                "ui_class": ""
            },
            "description": "PLAY GO",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 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": 18012,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-02-22T16:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-02-22T16:00:36.869388Z",
            "ended": "2022-10-31T05:29:30.255254Z",
            "start_waiting": "2022-02-22T16:00:36.749017Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 558,
            "name": "Go Student Camp",
            "director": {
                "id": 20502,
                "username": "nobush",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/d0c558f672e167a609363bda95da4150-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1380.7380924623656,
                        "deviation": 63.98287706543999,
                        "volatility": 0.060673101152357994
                    }
                },
                "ranking": 22.3854763936745,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 172800
            },
            "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": 385,
                "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": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-08-15T13:23:41Z",
            "ended": "2008-08-15T11:23:41Z",
            "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": 1651,
            "name": "apei's newbie",
            "director": {
                "id": 20502,
                "username": "nobush",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/d0c558f672e167a609363bda95da4150-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1380.7380924623656,
                        "deviation": 63.98287706543999,
                        "volatility": 0.060673101152357994
                    }
                },
                "ranking": 22.3854763936745,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 345600,
                "max_time": 864000,
                "time_increment": 172800
            },
            "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": 385,
                "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": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-03-09T20:24:15Z",
            "ended": "2012-03-09T19:24:15Z",
            "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": 1710,
            "name": "Julko's mini-tournament VII",
            "director": {
                "id": 15530,
                "username": "Julko",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/71fa797ba41fd26c92f7ed5fda17613a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 868.6130768831747,
                        "deviation": 67.1511065434887,
                        "volatility": 0.05926975894153485
                    }
                },
                "ranking": 11.656013714898473,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 604800,
                "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": 385,
                "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": 3,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-09-28T00:00:32Z",
            "ended": "2012-09-27T22:00:32Z",
            "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": 37165,
            "name": "TOURNAMENT N°3 !",
            "director": {
                "id": 534599,
                "username": "Iave0Name",
                "country": "_GoT_Stark",
                "icon": "https://secure.gravatar.com/avatar/91cb163f0e5c546fa01ace3fdbcb226a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1209.3091762574272,
                        "deviation": 264.382219308946,
                        "volatility": 0.060000861574359916
                    }
                },
                "ranking": 19.316505480258684,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "The third tournament of the group in real time, join it !",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 11,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 90,
                "max_time": 180,
                "time_increment": 10,
                "speed": "live"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2471,
                "name": "[NEW ADMINISTRATORS]",
                "summary": "[25-15k] This group is reserved for European beginners.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 81,
                "icon": "https://user-uploads.online-go.com/1d47f636cfa91703d5cba928c061e197-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-05-12T16:30:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2018-05-12T16:30:08.786323Z",
            "ended": "2018-05-12T17:42:04.994275Z",
            "start_waiting": "2018-05-12T16:30:07.316085Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1d47f636cfa91703d5cba928c061e197-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 58916,
            "name": "🍏a'p'pie",
            "director": {
                "id": 737306,
                "username": "2020vs",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/78080aa54321ea05a7dcca1596e6c924-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1057.6297343678023,
                        "deviation": 68.72909751962305,
                        "volatility": 0.060123971197317244
                    }
                },
                "ranking": 16.21396648247981,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9Tournament12345678910111213111114151161111718192021229x9\n2020\\04171400\nhi\napp",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 6720,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5213,
                "name": "apple",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 0,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-17T06:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-04-17T06:00:15.075721Z",
            "ended": "2020-06-26T17:58:09.384535Z",
            "start_waiting": "2020-04-17T06:00:14.085139Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 62306,
            "name": "25k-15k: 13x13 correspondence, auto-handicap",
            "director": {
                "id": 753709,
                "username": "jiveo",
                "country": "fi",
                "icon": "https://secure.gravatar.com/avatar/d676d8b1421760441b47ad0e33ab4c54?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1415.189783867484,
                        "deviation": 60.52637667718407,
                        "volatility": 0.05993419030944896
                    }
                },
                "ranking": 22.95601831063662,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Correspondence for fun and study, with room for those who didn't fit into a recent site-wide 13x13. \n\nAutomatic handicaps.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5144,
                "name": "Go players",
                "summary": "For all go players - feel free to join!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 227,
                "icon": "https://user-uploads.online-go.com/4ec48471c12af9fa68f6f30d6c700930-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-06-24T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-06-24T18:00:20.719559Z",
            "ended": "2020-07-14T14:31:40.395862Z",
            "start_waiting": "2020-06-24T18:00:20.046560Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ec48471c12af9fa68f6f30d6c700930-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 4155,
            "name": "FSTS Amateur Open Cup 2015",
            "director": {
                "id": 117904,
                "username": "Inquisitor",
                "country": "_Red_Cross",
                "icon": "https://user-uploads.online-go.com/6480244495d6b65fce5554cef9397a7f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1304.0248210491002,
                        "deviation": 62.45011626472323,
                        "volatility": 0.06000432406173624
                    }
                },
                "ranking": 21.06215970513464,
                "professional": false,
                "ui_class": ""
            },
            "description": "Just an amateur tournament :)",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 353,
                "name": "Four Seasons Tournament Series",
                "summary": "Серия турниров \"Четыре Сезона\"",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 623,
                "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-02-03T15:00:00Z",
            "players_start": 10,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2015-02-07T15:34:56.787588Z",
            "ended": "2015-11-19T14:18:07.088812Z",
            "start_waiting": "2015-02-07T15:34:56.629900Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 12252,
            "name": "Radom 19x19 November 2015",
            "director": {
                "id": 66704,
                "username": "mita va",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/7a4d02532a68fa46afdbca6ba63e594a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 756.5614059990393,
                        "deviation": 64.7513970168925,
                        "volatility": 0.05913393372667824
                    }
                },
                "ranking": 8.458672901839739,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "htre uio",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 28840,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 3600,
                "max_time": 604800,
                "time_increment": 28800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 476,
                "name": "Zbiegłe kurczaki",
                "summary": "Group for players from Kurnik / PlayOK",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 56,
                "icon": "https://user-uploads.online-go.com/daca8770a5adf92b79ec6207d56ba4a2-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-11-10T18:01:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 9,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2015-11-10T18:01:46.401871Z",
            "ended": "2015-12-11T15:57:41.280596Z",
            "start_waiting": "2015-11-10T18:01:45.485951Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/daca8770a5adf92b79ec6207d56ba4a2-15.png",
            "player_count": 8,
            "ranked": true
        }
    ]
}