List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=626
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59178,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=627",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=625",
    "results": [
        {
            "id": 87144,
            "name": "WSC Tournament",
            "director": {
                "id": 1067981,
                "username": "Averyw123",
                "country": "nz",
                "icon": "https://user-uploads.online-go.com/f887017259dd7746e20627b59b0c7968-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1274.6513862158752,
                        "deviation": 65.37626830930803,
                        "volatility": 0.06010299986513658
                    }
                },
                "ranking": 20.534738366137827,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Automatic site wide tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 259200,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 10855,
                "name": "⚫️The Brilliant World Of OGS⚪️",
                "summary": "Are you an OGS fan? If you are, join this group where there’s great tournaments and games to be played.\n\nPeople and bots can chat and play in this group. This is a public group so all are welcome to join.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 191,
                "icon": "https://user-uploads.online-go.com/0e618bdf660c5ca247f547082c39f943-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-03-12T12:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-03-12T12:00:03.435428Z",
            "ended": "2022-06-13T21:33:35.096688Z",
            "start_waiting": "2022-03-12T12:00:03.308848Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/0e618bdf660c5ca247f547082c39f943-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 22951,
            "name": "Sea-eagle Feathers",
            "director": {
                "id": 11372,
                "username": "Carel",
                "country": "_Scotland",
                "icon": "https://secure.gravatar.com/avatar/d04e237ce10e8d5d3440046944c89417?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1292.3916243045364,
                        "deviation": 65.67142702351883,
                        "volatility": 0.059964723165606366
                    }
                },
                "ranking": 20.854712007568494,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "There seem to be few handicapped correspondence tournaments now, and it was these I enjoyed most when an OGS regular years ago.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 93120,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 604800,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 85,
                "name": "Isle of Skye",
                "summary": "If you've ever played, or are not 100% ruling out ever playing, in the tournament held every second year in the Isle of Skye, Scotland, then you qualfy for this group.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 29,
                "icon": "https://user-uploads.online-go.com/6e667209a2e455c6e70d43f9e2d1b11f-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-12-20T13:32:00Z",
            "players_start": 5,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 13,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-12-19T14:18:28.429414Z",
            "ended": "2017-11-25T21:41:45.525975Z",
            "start_waiting": "2016-12-19T14:18:27.953326Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6e667209a2e455c6e70d43f9e2d1b11f-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 82546,
            "name": "SDK Small Round Robin",
            "director": {
                "id": 308797,
                "username": "Lys",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/5ccab3d1d5a7f9e6ecef1437a840a10d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1478.1151812072278,
                        "deviation": 62.88757774290636,
                        "volatility": 0.059780427771688786
                    }
                },
                "ranking": 23.96313834057522,
                "professional": false,
                "ui_class": ""
            },
            "description": "Fast correspondence. \nIf one player is quick as a bot, the other must play two moves a day to keep his time full.\nSix players: five simultaneous games. It's a small tournament 😄\nStart when full. \nAutomatic handicap. No-one likes to crush weaker players nor to be crushed by stronger. \nOnly SDK.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "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": 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": 820,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-11-15T22:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-11-15T23:09:06.620599Z",
            "ended": "2022-01-22T22:12:25.679929Z",
            "start_waiting": "2021-11-15T23:09:06.193709Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 85143,
            "name": "SDK DDK Ultra Fast Handicap 2",
            "director": {
                "id": 886972,
                "username": "Babbo Bruno",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/3a86884a3c89d9e4d9b53b217b0675cf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1052.5727007135483,
                        "deviation": 64.97487770696088,
                        "volatility": 0.05980015448391852
                    }
                },
                "ranking": 16.103009778739434,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Please note the extremely aggresive time requiremets. You must achieve 6 moves per day.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 17280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "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": 820,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-01-26T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 10,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-26T19:05:54.148690Z",
            "ended": "2022-03-31T17:32:42.306803Z",
            "start_waiting": "2022-01-26T19:05:53.515131Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 88048,
            "name": "9*9 Correspondence Go Tournament",
            "director": {
                "id": 1132292,
                "username": "deleted-d49aebc5-19dd-4213-92a8-c6b6f2062072",
                "country": "hk",
                "icon": "https://secure.gravatar.com/avatar/693270c4a084198756f29944e2c7084d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 951.8556179318954,
                        "deviation": 68.46807803165343,
                        "volatility": 0.060053290780978354
                    }
                },
                "ranking": 13.774599538647845,
                "professional": false,
                "ui_class": ""
            },
            "description": "Have Fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 14400,
                "initial_time": 86400,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 10278,
                "name": "大埔舊墟公立學校(寶湖道)21-22(第3期) 入門",
                "summary": "\n上課日子:  8/7、15/7、22/7、29/7、5/8、19/8.\n\n星期五 3:00-4:15PM\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 7,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-04-02T10:00:00Z",
            "players_start": 1,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-04-02T10:00:47.569809Z",
            "ended": "2022-04-02T10:00:47.553033Z",
            "start_waiting": "2022-04-02T10:00:47.495401Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 130832,
            "name": "Servus Oida Open Tournament #17",
            "director": {
                "id": 1285178,
                "username": "VikingKoala",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/aa9209bd96e427a6ff7e102b893f9af0-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1075.8164406195783,
                        "deviation": 63.52080297059803,
                        "volatility": 0.05970506488565628
                    }
                },
                "ranking": 16.608663525626916,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "McMahon Kyu Player Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91187,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5720,
                "name": "Outside Go7",
                "summary": "Die Gruppe für alle, die sonst im Go7 spielen.",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 47,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-10-14T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 15,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-09-11T23:28:26.692066Z",
            "ended": "2026-02-03T21:25:11.425441Z",
            "start_waiting": "2025-09-11T23:28:26.479872Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 83827,
            "name": "9x9 Mini League 1k-9k #4",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1317.7115162861314,
                        "deviation": 68.21168013811256,
                        "volatility": 0.06020364206472342
                    }
                },
                "ranking": 21.303869650294313,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "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": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 696,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-01-02T21:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-02T05:11:44.065186Z",
            "ended": "2022-01-30T11:26:53.779528Z",
            "start_waiting": "2022-01-02T05:11:43.829517Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 63443,
            "name": "Fast Tournament",
            "director": {
                "id": 736685,
                "username": "李朗銳",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/b7c6482c7e297b7c47906a1a0bfc23c7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1005.3610697829467,
                        "deviation": 66.82162579107839,
                        "volatility": 0.06001116661169058
                    }
                },
                "ranking": 15.040642201285266,
                "professional": false,
                "ui_class": ""
            },
            "description": "This isa super fast tournament!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "live",
                "pause_on_weekends": false,
                "per_move": 10
            },
            "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": 70,
                "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-07-23T08:16:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-07-23T08:16:08.231310Z",
            "ended": "2020-07-23T08:20:37.382225Z",
            "start_waiting": "2020-07-23T08:16:07.761101Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 15838,
            "name": "Blitz for kyu players!",
            "director": {
                "id": 202160,
                "username": "Lalaka",
                "country": "_Pirate",
                "icon": "https://secure.gravatar.com/avatar/b62e8ddace1aa52b91cbcf0a2ab02075?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1541.2682102203644,
                        "deviation": 61.1957145570833,
                        "volatility": 0.060019865998826256
                    }
                },
                "ranking": 24.93168435309793,
                "professional": false,
                "ui_class": ""
            },
            "description": "Join everybody",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 20,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 20,
                "main_time": 0,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 8861,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-03-19T00:00:00Z",
            "players_start": 10,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-03-20T14:57:02.481676Z",
            "ended": "2016-03-20T15:17:04.884619Z",
            "start_waiting": "2016-03-20T14:57:02.244485Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 4854,
            "name": "SDK correspondence round robin",
            "director": {
                "id": 81160,
                "username": "requesteddeletion",
                "country": "gb",
                "icon": "https://secure.gravatar.com/avatar/6a0ba661a871cc50a0e439bb719d8a9a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2034.1125538623223,
                        "deviation": 64.24217425304717,
                        "volatility": 0.06011805754974733
                    }
                },
                "ranking": 31.354745417437115,
                "professional": false,
                "ui_class": ""
            },
            "description": "A round robin tournament for single digit kyus. All welcome! Time is 3d + 1d per move",
            "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": true,
            "group": {
                "id": 20,
                "name": "Single Digit Kyu Room",
                "summary": "A room for SDK's \r\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 760,
                "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-02-07T16:45:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-02-09T00:00:43.282323Z",
            "ended": "2015-03-26T00:00:30.805505Z",
            "start_waiting": "2015-02-09T00:00:43.070344Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-15.png",
            "player_count": 4,
            "ranked": true
        }
    ]
}