List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=57
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60396,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=58",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=56",
    "results": [
        {
            "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": 3680,
                "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": 131408,
            "name": "Kranj 114",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 776.0568204650347,
                        "deviation": 65.1944237557439,
                        "volatility": 0.05993216649471857
                    }
                },
                "ranking": 9.047656096247819,
                "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": 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": "2025-08-18T15:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-18T15:00:34.296293Z",
            "ended": "2026-02-26T18:30:17.868927Z",
            "start_waiting": "2025-08-18T15:00:34.070132Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 2748,
            "name": "Fast 9x9",
            "director": {
                "id": 52052,
                "username": "ST000MA",
                "country": "rs",
                "icon": "https://secure.gravatar.com/avatar/da4a122c783bf3156553dfebd327d39d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1708.107858893195,
                        "deviation": 63.508568158615816,
                        "volatility": 0.06262275635862553
                    }
                },
                "ranking": 27.311056445802638,
                "professional": false,
                "ui_class": ""
            },
            "description": "Swiss, 9x9, Japanese rules, 25-20kyu",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 88320,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "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": 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": 5,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-01-08T17:25:46.587406Z",
            "ended": "2014-02-14T13:55:24.805376Z",
            "start_waiting": "2014-01-08T17:23:28.964127Z",
            "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": 2968,
            "name": "HKB Beginners' Tournament 2nd Cycle",
            "director": {
                "id": 42360,
                "username": "Henrib736",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/cfd31e74c2d9b1ad2b6d571ecc820cf6-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1345.0585409259156,
                        "deviation": 64.53637528197693,
                        "volatility": 0.06005390268858446
                    }
                },
                "ranking": 21.7793939100321,
                "professional": false,
                "ui_class": ""
            },
            "description": "Required Rank: 30k - 20k",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91200,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 432000,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 18074,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.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": "2014-07-05T16:57:05.989451Z",
            "ended": "2014-09-10T21:12:13.542681Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 255,
            "name": "_-_-_-_'s mini-tournament",
            "director": {
                "id": 11447,
                "username": "_-_-_-_",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/0a329e090e474b89451ca1599f6ca36f?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1559.3368082567763,
                        "deviation": 70.27858323080814,
                        "volatility": 0.06000826996054608
                    }
                },
                "ranking": 25.201498003685646,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2007-06-28T12:54:00Z",
            "ended": "2007-07-20T22:50:00Z",
            "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": 1661,
            "name": "come and win me    2",
            "director": {
                "id": 39869,
                "username": "ny",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/4a5bd899aafac4b589a567052c590316?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1372.0713020870298,
                        "deviation": 65.00493730427769,
                        "volatility": 0.060048814960913535
                    }
                },
                "ranking": 22.23970759435493,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-03-15T15:41:08Z",
            "ended": "2012-03-15T14:41:08Z",
            "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": 1662,
            "name": "odilo's mini-tournament",
            "director": {
                "id": 23534,
                "username": "odilo",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/a280d023f0b8970aaec354d11b55aa00?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1259.1697691530774,
                        "deviation": 67.98859504176583,
                        "volatility": 0.06001806175266714
                    }
                },
                "ranking": 20.251842397524285,
                "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": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-06-29T06:45:21Z",
            "ended": "2012-06-29T04:45:21Z",
            "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": 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": 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": 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": 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 reúne 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": 666,
            "name": "The Tortoise & The Hare...Play Slow, Play Fast...Just Play :o)",
            "director": {
                "id": 13272,
                "username": "LazyGirl",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/bc01e7f3d61a30b5095e89f668f09fe4-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1265.1925182295072,
                        "deviation": 63.657352301451475,
                        "volatility": 0.06010630630914548
                    }
                },
                "ranking": 20.362307449524884,
                "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": 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": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-12-12T16:47:59Z",
            "ended": "2008-12-12T15:47:59Z",
            "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
        }
    ]
}