List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=194
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60032,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=195",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=193",
    "results": [
        {
            "id": 134586,
            "name": "99 nights in the forest tournament",
            "director": {
                "id": 1889930,
                "username": "Kbr6415",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/b0979c9fc6e676f999a08860804ad3bb-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1367.098770497725,
                        "deviation": 155.200285803953,
                        "volatility": 0.060006654484202566
                    }
                },
                "ranking": 22.155657148640437,
                "professional": false,
                "ui_class": ""
            },
            "description": "Defeat everyone and win",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 80890,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 72000,
                "initial_time": 1123200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15851,
                "name": "Kingsboss group",
                "summary": "Vip group request to join!",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/e821750bcfc53c45584de3305718ce18-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-11-24T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-11-24T08:00:09.681101Z",
            "ended": null,
            "start_waiting": "2025-11-24T08:00:09.617523Z",
            "board_size": 19,
            "active_round": 3,
            "icon": "https://user-uploads.online-go.com/e821750bcfc53c45584de3305718ce18-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 40151,
            "name": "9x9 Super Ultra Mega Awesome Funtime Tourny!",
            "director": {
                "id": 549878,
                "username": "Elmindreda_Go",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/feadb404d03c9fc1ce126d63a35d066c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2278.295485712937,
                        "deviation": 69.21321105738922,
                        "volatility": 0.06002495584222466
                    }
                },
                "ranking": 33.97921316088967,
                "professional": false,
                "ui_class": ""
            },
            "description": "Anyone can join. Double elimination 9x9 tournament with no handicap. Simple time 1 day per move, paused on weekends.\n\nThis will be my first time hosting a tournament, so I hope people will join and have some fun! ^_^",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "speed": "correspondence",
                "system": "simple",
                "pause_on_weekends": true,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2776,
                "name": "9_Lives ฅ=(1ωↀ)=ฅ",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 2,
                "icon": "https://user-uploads.online-go.com/3424e8b19abd7f0ccd0c65fd42ee5a56-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-08-24T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-08-23T03:03:30.756358Z",
            "ended": "2018-11-17T00:49:18.594539Z",
            "start_waiting": "2018-08-23T03:03:29.618309Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/3424e8b19abd7f0ccd0c65fd42ee5a56-15.png",
            "player_count": 20,
            "ranked": true
        },
        {
            "id": 101940,
            "name": "REVANCHA",
            "director": {
                "id": 746065,
                "username": "Elnefo11",
                "country": "co",
                "icon": "https://secure.gravatar.com/avatar/1815dd1847a342bb3cf440bad4d14a91?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1066.6998793688483,
                        "deviation": 63.733765811801405,
                        "volatility": 0.060002806912618695
                    }
                },
                "ranking": 16.411652501980377,
                "professional": false,
                "ui_class": ""
            },
            "description": "REVANCHA",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 180,
                "period_time": 30,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4802,
                "name": "shibumi...",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 16,
                "icon": "https://user-uploads.online-go.com/36aabf9977d858365e1702efb7172f85-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-04-07T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-04-07T04:00:29.368703Z",
            "ended": "2023-04-07T04:21:06.561439Z",
            "start_waiting": "2023-04-07T04:00:29.299861Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36aabf9977d858365e1702efb7172f85-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 64910,
            "name": "Very fast Correspondence DAN 2020-09-07",
            "director": {
                "id": 597125,
                "username": "Ryogishiki",
                "country": "cy",
                "icon": "https://secure.gravatar.com/avatar/7b995cc68feef87af2a284edfddfc2e7?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1845.0858895863796,
                        "deviation": 66.11971755081139,
                        "volatility": 0.05933513655685435
                    }
                },
                "ranking": 29.096837871491704,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled to allow the use of conditional moves.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 86400,
                "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": 828,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-09-07T10:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 27,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-01T19:52:11.255459Z",
            "ended": "2020-10-03T17:43:21.876043Z",
            "start_waiting": "2020-09-01T19:52:09.878812Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 73111,
            "name": "3月27日 簡頌賢VS劉沛祥",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "3月27日 簡頌賢VS劉沛祥",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 720,
                "period_time": 15,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7533,
                "name": "傳碁 A班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 36,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2021-03-27T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2021-03-27T10:10:00.921780Z",
            "ended": "2021-03-27T10:55:16.913829Z",
            "start_waiting": "2021-03-27T10:10:00.852085Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 66536,
            "name": "第2期かおり杯棋聖戦Cリーグ6",
            "director": {
                "id": 575743,
                "username": "site15",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/bc007d9395773691f25a5b61c493d20c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2232.771642016839,
                        "deviation": 66.15745879617059,
                        "volatility": 0.059975550212188235
                    }
                },
                "ranking": 33.51195664282314,
                "professional": false,
                "ui_class": ""
            },
            "description": "humandryさん、せぽわわさん、Daichi1515さん、wukittyさん、はっしーのアカウントさん、sugar045さん、fumi23さん",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 46080,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2969,
                "name": "かおり杯-World Kaori Cup-",
                "summary": "For every player who enjoy go game",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 296,
                "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-17T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2020-10-17T11:00:20.671273Z",
            "ended": "2020-12-18T06:01:00.939634Z",
            "start_waiting": "2020-10-17T11:00:20.198404Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 58004,
            "name": "The 20th Murase Go Group Tournament",
            "director": {
                "id": 449215,
                "username": "SM-SYaKo",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/e577b58bab7d7fc9871766c9d1f7195a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1182.178471692773,
                        "deviation": 63.45983688838135,
                        "volatility": 0.060058455061893425
                    }
                },
                "ranking": 18.79122343818162,
                "professional": false,
                "ui_class": ""
            },
            "description": "毎月27日に開催される定例トーナメントです。これは第二十回村瀬碁グループ定例トーナメントです。2020年4月27日に開始されます。\n\nA tournament that happens every month on the 27th. This is the 20th tournament that starts on April 27th, 2020.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 21840,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 18000,
                "initial_time": 345600,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2389,
                "name": "Murase Go Group",
                "summary": "The group of Japanese and any go player from different countries.\nこのグループは日本人や世界中の国々の人々が集うグループです。",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 92,
                "icon": "https://user-uploads.online-go.com/9e03e37d7a9f7508c9a114190260a7b9-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-27T12:00:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-27T12:00:20.747520Z",
            "ended": "2020-10-29T20:32:05.418442Z",
            "start_waiting": "2020-04-27T12:00:13.955909Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9e03e37d7a9f7508c9a114190260a7b9-15.png",
            "player_count": 23,
            "ranked": true
        },
        {
            "id": 70562,
            "name": "new beginner tournament",
            "director": {
                "id": 740165,
                "username": "szproszczytek",
                "country": "_Scotland",
                "icon": "https://user-uploads.online-go.com/2bf8d743b1993c76c2759fce0ce5432d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2053.733837221348,
                        "deviation": 73.93692707212678,
                        "volatility": 0.06005991186470912
                    }
                },
                "ranking": 31.57698282790967,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "new tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 13,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 10,
                "initial_time": 300,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4568,
                "name": "Scotland Youth Team",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 64,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-01-25T16:46:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-01-25T16:46:34.444673Z",
            "ended": "2021-01-25T17:22:16.005202Z",
            "start_waiting": "2021-01-25T16:46:34.311133Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 68582,
            "name": "Oops let's make it private",
            "director": {
                "id": 826246,
                "username": "j.z",
                "country": "nz",
                "icon": "https://secure.gravatar.com/avatar/fe4e93f99328e8a7e73f46a295d77421?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1173.1816185486614,
                        "deviation": 65.04246047119402,
                        "volatility": 0.06000874762823385
                    }
                },
                "ranking": 18.614368812763075,
                "professional": false,
                "ui_class": ""
            },
            "description": "Inaugural joyous tournament 2",
            "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": false,
            "group": {
                "id": 7521,
                "name": "Joyoushq",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 13,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-12-06T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-12-07T00:17:59.211497Z",
            "ended": "2020-12-14T23:08:06.785342Z",
            "start_waiting": "2020-12-07T00:17:58.767666Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 116496,
            "name": "Handicap Arena 2024 - 043",
            "director": {
                "id": 2408,
                "username": "richyfourtytwo",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/8482108492340cf4f2021653180eb741-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1555.8104227451252,
                        "deviation": 66.23322166678231,
                        "volatility": 0.05973548358437876
                    }
                },
                "ranking": 25.149085803932696,
                "professional": false,
                "ui_class": ""
            },
            "description": "Part of an arena tournament. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as there are 10 players.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 88451,
            "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": 13655,
                "name": "Handicap Arena",
                "summary": "Organising arena-type handicap correspondence tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 108,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-06-01T10:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-30T14:42:18.917887Z",
            "ended": "2024-10-15T14:48:50.520186Z",
            "start_waiting": "2024-05-30T14:42:18.310980Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}