List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5857
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60023,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5858",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5856",
    "results": [
        {
            "id": 2795,
            "name": "Dark Realm",
            "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": "time for game lets have fun",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": 154,
                "name": "Shou 'Shu' Group",
                "summary": "Are you looking for a fun and enjoyment?. Will here we are, we encourage you to join our group. Everyone is welcome, newbie or not.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 106,
                "icon": "https://user-uploads.online-go.com/5d438049e4eeb1f1ec7c33798592c824-64.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": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-02-01T17:00:17.932533Z",
            "ended": "2014-02-26T11:16:13.981203Z",
            "start_waiting": "2014-02-01T17:00:17.506240Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5d438049e4eeb1f1ec7c33798592c824-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 115689,
            "name": "Kranj 71",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 789.792021382491,
                        "deviation": 64.86396886901105,
                        "volatility": 0.059924389565863295
                    }
                },
                "ranking": 9.453797542761778,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38051,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 36000,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 374,
                "name": "Slovenija",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-05-07T16:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 8,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-07T16:00:02.598513Z",
            "ended": "2025-04-28T18:25:17.662007Z",
            "start_waiting": "2024-05-07T16:00:02.366437Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 13,
            "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": 1388.0609864369926,
                        "deviation": 63.925759174857106,
                        "volatility": 0.060671558109881424
                    }
                },
                "ranking": 22.507930487275832,
                "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": 112223,
            "name": "Kranj 57",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 789.792021382491,
                        "deviation": 64.86396886901105,
                        "volatility": 0.059924389565863295
                    }
                },
                "ranking": 9.453797542761778,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38051,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 36000,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 374,
                "name": "Slovenija",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-02-05T18:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 8,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-02-05T18:00:15.602335Z",
            "ended": "2024-10-15T23:09:54.663881Z",
            "start_waiting": "2024-02-05T18:00:15.511862Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 5768,
            "name": "Kyu Tourney",
            "director": {
                "id": 134048,
                "username": "♥Fujiwara-no-sai♥",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/bff50d411a88a7f45ca5a1c4d233e9f4?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1368.1252363988306,
                        "deviation": 191.54220786932598,
                        "volatility": 0.06000459996969571
                    }
                },
                "ranking": 22.173032461716225,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Join if you're 30 kyu or higher, up to 15 kyu",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 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": 8909,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-03-14T00:30:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-03-17T05:51:35.390132Z",
            "ended": "2015-03-18T17:21:21.010366Z",
            "start_waiting": "2015-03-17T05:51:35.272374Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 85750,
            "name": "SS 19×19 2022 - 4",
            "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": "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": 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": 18023,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-02-14T09:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-02-14T09:00:02.072992Z",
            "ended": "2022-06-12T05:26:51.456172Z",
            "start_waiting": "2022-02-14T09:00:01.625269Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 53025,
            "name": "9X9 Japanese",
            "director": {
                "id": 646878,
                "username": "Shikamaru4",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/4de7672cfb2c5d5d0a77668b7a721253-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 779.0027044554525,
                        "deviation": 63.43343203946138,
                        "volatility": 0.05993292089993528
                    }
                },
                "ranking": 9.135366302661472,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Beginners 9X9 tournament.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 631680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 604800,
                "initial_time": 2419200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4081,
                "name": "9X9 PLAYERS",
                "summary": "9X9 games",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3,
                "icon": "https://user-uploads.online-go.com/ab04e2d9619d69b9f635715fe6e1968f-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-01-01T16:00:00Z",
            "players_start": 15,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-01-01T17:02:14.524329Z",
            "ended": "2022-01-05T22:50:08.342279Z",
            "start_waiting": "2020-01-01T17:02:12.729859Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ab04e2d9619d69b9f635715fe6e1968f-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 4958,
            "name": "Beograd easy 2015",
            "director": {
                "id": 66704,
                "username": "mita va",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/7a4d02532a68fa46afdbca6ba63e594a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 765.8713560501766,
                        "deviation": 64.29472780923611,
                        "volatility": 0.059134082118643565
                    }
                },
                "ranking": 8.741809255274307,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "xfz jrdtr",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 37920,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 345600,
                "time_increment": 36000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 27,
                "name": "Serbian Go Players",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 81,
                "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-02-12T10:19:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-02-12T10:19:36.049863Z",
            "ended": "2015-02-20T19:46:16.300151Z",
            "start_waiting": "2015-02-12T10:19:35.855090Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 6311,
            "name": "Częstochowa 19x19 2015",
            "director": {
                "id": 66704,
                "username": "mita va",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/7a4d02532a68fa46afdbca6ba63e594a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 765.8713560501766,
                        "deviation": 64.29472780923611,
                        "volatility": 0.059134082118643565
                    }
                },
                "ranking": 8.741809255274307,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "dtz vhjki",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 29760,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 259200,
                "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": true,
            "time_start": "2015-04-07T14:32:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 6,
            "max_ranking": 15,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2015-04-07T14:32:30.185126Z",
            "ended": "2015-05-11T07:40:42.944623Z",
            "start_waiting": "2015-04-07T14:32:30.052231Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/daca8770a5adf92b79ec6207d56ba4a2-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 63837,
            "name": "9x9 Double Elimination",
            "director": {
                "id": 582354,
                "username": "GlacialNoivern",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/bae7db25edc19db310969d9c23831e70-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1538.257364713131,
                        "deviation": 65.55077561199136,
                        "volatility": 0.06026203340214659
                    }
                },
                "ranking": 24.886416928616224,
                "professional": false,
                "ui_class": ""
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n\n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n\n☆ Does NOT pause on the weekend.\n\n☆ If this sounds like a good time to you, please join us!\n\n<BR><HR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 591,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-26T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-11-16T12:01:43.862349Z",
            "ended": "2020-12-20T14:19:35.510570Z",
            "start_waiting": "2020-11-16T12:01:43.661508Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 8,
            "ranked": true
        }
    ]
}