List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5829
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58823,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5830",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5828",
    "results": [
        {
            "id": 34522,
            "name": "Cookies!",
            "director": {
                "id": 434287,
                "username": "plunco123",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/09c2e06377580c17170f0176640e628c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1065.148398354857,
                        "deviation": 62.98616519671558,
                        "volatility": 0.060034951495478994
                    }
                },
                "ranking": 16.377957053584552,
                "professional": false,
                "ui_class": ""
            },
            "description": "cookies!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 61,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 120,
                "max_time": 300,
                "time_increment": 60,
                "speed": "live"
            },
            "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": 17825,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-02-17T10:34:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-02-17T10:34:32.621328Z",
            "ended": "2018-02-17T10:39:32.669692Z",
            "start_waiting": "2018-02-17T10:34:32.205915Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 62183,
            "name": "Evolution tournoire !",
            "director": {
                "id": 764387,
                "username": "Okada",
                "country": "dz",
                "icon": "https://user-uploads.online-go.com/802895d19d034739ed95a706fd9e6c5f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 898.1750540844837,
                        "deviation": 63.756948127042236,
                        "volatility": 0.06004438933045687
                    }
                },
                "ranking": 12.430779670924041,
                "professional": false,
                "ui_class": ""
            },
            "description": "Good game",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 242,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 240,
                "initial_time": 240,
                "max_time": 270
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6093,
                "name": "GO go let's go !",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://user-uploads.online-go.com/8186734653c6038630ed4a7e7f8ae7f0-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-06-21T16:05:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-21T16:05:44.720618Z",
            "ended": "2020-06-21T16:39:57.982985Z",
            "start_waiting": "2020-06-21T16:05:44.454813Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/8186734653c6038630ed4a7e7f8ae7f0-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 63413,
            "name": "Happy tournament",
            "director": {
                "id": 787818,
                "username": "Ernie Ip",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/6ff93d62e603d6754e9948ca7f093372-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 848.0310294421083,
                        "deviation": 65.44134154669923,
                        "volatility": 0.0599842022485025
                    }
                },
                "ranking": 11.100864013221816,
                "professional": false,
                "ui_class": ""
            },
            "description": "Play this tournament if you want to be happy!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 60,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5925,
                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 71,
                "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-07-23T07:30:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-07-23T07:30:05.822083Z",
            "ended": "2020-07-23T07:40:32.731845Z",
            "start_waiting": "2020-07-23T07:30:05.468954Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 68747,
            "name": "DA NOOOOOOOBS",
            "director": {
                "id": 888411,
                "username": "hikaru and sai.",
                "country": "_CARICOM",
                "icon": "https://user-uploads.online-go.com/8d9142072852dbb65909746ea4f4d5a9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 633.6080341648096,
                        "deviation": 65.33801758418787,
                        "volatility": 0.05999209103873468
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "NOOB NOOBSSSSSSSSSSSSSSSSSS",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 604800,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 7560,
                "name": "Go!!!",
                "summary": "Feel free to share and play in this group!😊😊😊😊",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 21,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-12-12T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-12-12T15:00:56.746326Z",
            "ended": "2021-04-06T15:16:39.347756Z",
            "start_waiting": "2020-12-12T15:00:56.446763Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 131252,
            "name": "Kranj 113",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 786.9317680033697,
                        "deviation": 63.72458770887046,
                        "volatility": 0.059922034172810626
                    }
                },
                "ranking": 9.369807006429141,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "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": false,
            "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": "2025-08-14T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-14T16:00:06.274257Z",
            "ended": "2026-02-16T19:26:03.686218Z",
            "start_waiting": "2025-08-14T16:00:05.640659Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 14,
            "ranked": true
        },
        {
            "id": 131467,
            "name": "II Real 20-25 k Tournament",
            "director": {
                "id": 1676951,
                "username": "davi.jorge.arte",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/a3f98b8c45002f900cff5882710c1b52-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 465.1467159590095,
                        "deviation": 63.54503674972753,
                        "volatility": 0.060033170063638966
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "A tournament for low rating players as fast as it can be (nowadays).",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 90782,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 24,
                "name": "Double Digit Kyu Room",
                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3640,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-08-22T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-16T19:14:10.829089Z",
            "ended": "2026-02-01T06:32:44.517837Z",
            "start_waiting": "2025-08-16T19:14:10.672643Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 5102,
            "name": "Beginner's Cup",
            "director": {
                "id": 128538,
                "username": "guatonhide",
                "country": "cl",
                "icon": "https://user-uploads.online-go.com/1be94844b8d4368649452ca565f75519-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1134.473694472796,
                        "deviation": 63.893415473586515,
                        "volatility": 0.06008618117515606
                    }
                },
                "ranking": 17.837673530957645,
                "professional": false,
                "ui_class": ""
            },
            "description": "30-20k only",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 66,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 60,
                "main_time": 600,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 363,
                "name": "Chilenos Unidos por el Go",
                "summary": "Grupo que reΓΊne a los jugadores chilenos de OGS",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 207,
                "icon": "https://user-uploads.online-go.com/5073ea9feb7f9b23e5e801ae5c22cfc9-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-02-28T04:37:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-02-28T04:37:04.600970Z",
            "ended": "2015-02-28T10:28:21.671239Z",
            "start_waiting": "2015-02-28T04:37:04.256720Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5073ea9feb7f9b23e5e801ae5c22cfc9-15.png",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 2733,
            "name": "Under 20K #02",
            "director": {
                "id": 4936,
                "username": "Syndrina",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/ef4fa10e12406bd9ea627dd9bd9fc111-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1386.241615721719,
                        "deviation": 66.75028378359585,
                        "volatility": 0.05990124794069735
                    }
                },
                "ranking": 22.47756722548621,
                "professional": false,
                "ui_class": ""
            },
            "description": "Tournament Table available at:\n\nhttps://docs.google.com/spreadsheet/ccc?key=0Anda6pOZQpHydG1GY0lWaURtSmlaR3BsSW5CUTRYLWc&usp=sharing",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 24,
                "name": "Double Digit Kyu Room",
                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3640,
                "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": "2013-12-28T00:41:51.200361Z",
            "ended": "2014-08-27T06:10:23.400635Z",
            "start_waiting": "2013-12-28T00:41:50.062894Z",
            "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": 32784,
            "name": "DustyDeath",
            "director": {
                "id": 490070,
                "username": "DeathSpear42",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/8d520fad1b05e7b3b395c47b31b385fc-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 993.1820506300858,
                        "deviation": 65.72760281415258,
                        "volatility": 0.05999822243216713
                    }
                },
                "ranking": 14.75848888600187,
                "professional": false,
                "ui_class": ""
            },
            "description": "First tournament. Good luck!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1999,
                "name": "DustyDeath",
                "summary": "Active group. Here to have fun and improve our game of Go!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 14,
                "icon": "https://user-uploads.online-go.com/b592841cb83c46074388e9cdb46bf293-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2017-12-14T17:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2017-12-14T17:00:47.778664Z",
            "ended": "2017-12-31T20:18:56.626811Z",
            "start_waiting": "2017-12-14T17:00:47.573941Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b592841cb83c46074388e9cdb46bf293-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 76104,
            "name": "The strongest newcomer in the World (25k - 20k)",
            "director": {
                "id": 721084,
                "username": "Lexxgo",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/eadd3bb95af972db608b10e308217d0d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1702.0164192076516,
                        "deviation": 66.54857732174423,
                        "volatility": 0.059972624948633195
                    }
                },
                "ranking": 27.22835155459872,
                "professional": false,
                "ui_class": ""
            },
            "description": "The strongest newcomer in the World (25k - 20k)",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 93120,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 604800,
                "period_time": 86400,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 9239,
                "name": "World tournaments",
                "summary": "World tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/f00af69c1e00d870226552a84d04d87c-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-06-15T08:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-06-15T08:00:06.340373Z",
            "ended": "2021-06-15T08:01:43.883664Z",
            "start_waiting": "2021-06-15T08:00:06.252758Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f00af69c1e00d870226552a84d04d87c-15.png",
            "player_count": 2,
            "ranked": true
        }
    ]
}