List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=1521
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58922,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=1522",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=1520",
    "results": [
        {
            "id": 103976,
            "name": "第6期かおり杯棋聖戦Cリーグ3",
            "director": {
                "id": 687868,
                "username": "site_tmp2",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/df15d7948ed906cfa068879a5f71e7b3?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "このトーナメントは下記の方が参加予定です。空きがないため参加者となっていない方は参加することができません。\n\nThis tournament have already been “reserved” for members listed below. If you are not one among them, don’t click “Join this tournament!”. (There is no vacancy.)\n\njustsunさん、Zenkyuさん、Eruditoさん、carteriさん、une..さん、Hagirinさん",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45251,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "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": 289,
                "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-06-10T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-06-10T11:00:25.474928Z",
            "ended": "2023-07-15T03:27:13.744348Z",
            "start_waiting": "2023-06-10T11:00:25.241953Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 115439,
            "name": "19x19 New Zealand Handicap D.E. #12",
            "director": {
                "id": 178104,
                "username": "dexonsmith",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/448e520df4ffd817b1802a450a4c9058-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1390.7732166446785,
                        "deviation": 67.55416504748428,
                        "volatility": 0.06064009346038413
                    }
                },
                "ranking": 22.55312076827671,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "All players welcome. 8 players. Starts only when full.\n\nNew Zealand rules. 19x19 board. Handicap games. Double-elimination.\n\nFor more tournaments and ladders with New Zealand rules: <https://online-go.com/group/14024>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": -1,
            "rules": "nz",
            "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": false,
            "group": {
                "id": 14024,
                "name": "New Zealand Ladders",
                "summary": "Group for ladders and tournaments that use New Zealand rules.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 81,
                "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-05-11T03:19:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-09T04:16:39.497098Z",
            "ended": "2025-05-31T23:49:46.327683Z",
            "start_waiting": "2024-05-09T04:16:39.339641Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 72317,
            "name": "2nd Kwago League W4",
            "director": {
                "id": 753236,
                "username": "totesuru",
                "country": "ph",
                "icon": "https://user-uploads.online-go.com/210744714a0baefd001f5eef4084dc84-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1487.7479916401726,
                        "deviation": 62.878382806141644,
                        "volatility": 0.05991274501706562
                    }
                },
                "ranking": 24.113516380733298,
                "professional": false,
                "ui_class": ""
            },
            "description": "🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭\n\n2nd Kwago League live tournament is held on Sundays starting February 21 to April 17, 2021.\n\nMabuhay! If you are a member of the Philippine Go Association Community FB group https://www.facebook.com/groups/158087227586983, please register to join the Kwago League and help grow the Pinoy go community! Just DM guryon for details. Tara na at maki-kwago!\n\n🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭🇵🇭",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 43,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 309,
                "name": "Filipino Go Group",
                "summary": "Go Group for Filipinos",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 92,
                "icon": "https://user-uploads.online-go.com/d85657374f9a7c3118ee143d11e0598b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-03-14T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-03-14T11:00:21.333248Z",
            "ended": "2021-03-14T13:41:50.972020Z",
            "start_waiting": "2021-03-14T11:00:21.017722Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d85657374f9a7c3118ee143d11e0598b-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 44424,
            "name": "Cosmo 13x13 Round-robin Tournament - January 2019",
            "director": {
                "id": 446898,
                "username": "Dark Cosmos",
                "country": "150",
                "icon": "https://user-uploads.online-go.com/80006af13263a20bc006e67aba625553-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1892.8571702423064,
                        "deviation": 72.93769202214149,
                        "volatility": 0.05999417625510985
                    }
                },
                "ranking": 29.688588652541746,
                "professional": false,
                "ui_class": ""
            },
            "description": "Members only",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "period_time": 86400,
                "main_time": 86400,
                "system": "byoyomi",
                "pause_on_weekends": true,
                "time_control": "byoyomi",
                "periods": 3,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2844,
                "name": "CosmoSpirit",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 19,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2019-01-09T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2019-01-09T16:19:12.548031Z",
            "ended": "2019-02-26T16:17:51.965918Z",
            "start_waiting": "2019-01-09T16:19:11.691836Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 116455,
            "name": "May cup",
            "director": {
                "id": 1055696,
                "username": "deleted-dd2583d3-bb3a-42cb-a2fb-8c58bbe3d216",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/c176d6849a1892b9017c85f548813837-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1520.9618235200285,
                        "deviation": 65.86233200519976,
                        "volatility": 0.05999729225859075
                    }
                },
                "ranking": 24.624653373951272,
                "professional": false,
                "ui_class": ""
            },
            "description": "fast tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 4521,
                "name": "KO Cup 2020",
                "summary": "Cogliendo l'occasione dei vari club chiusi e molti giocatori a casa, organizziamo da questa settimana il KO Cup 2020!\nTorneo serale che si tiene una volta a settimana, in 5 turni con tempo 1min+2x15sec byo-yomi. Premi in palio a sorpresa!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 26,
                "icon": "https://user-uploads.online-go.com/1d9edba8ecb79e2c964d165e58f0ea9d-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-05-31T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2024-05-31T12:00:54.977307Z",
            "ended": "2024-07-14T16:26:21.545882Z",
            "start_waiting": "2024-05-31T12:00:54.864057Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1d9edba8ecb79e2c964d165e58f0ea9d-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 112685,
            "name": "鬼滅の刃 × 推しの子 囲碁の試合",
            "director": {
                "id": 1392807,
                "username": "空空 派蒙",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/e0b796d9992748a6475c091e71436fde-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 896.4894284945825,
                        "deviation": 67.43351849947182,
                        "volatility": 0.060022408670528694
                    }
                },
                "ranking": 12.387292719173617,
                "professional": false,
                "ui_class": ""
            },
            "description": "皆様のご来席をお待ちしております。",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "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": 13545,
                "name": "萊歐斯利 那維萊特 真帥!!",
                "summary": "只愛他倆",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 3,
                "icon": "https://user-uploads.online-go.com/85babde4c707c820094fd9d0b926a158-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-02-12T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-18T10:53:13.906820Z",
            "ended": "2024-08-31T02:35:00.971146Z",
            "start_waiting": "2024-05-18T10:53:13.835064Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/85babde4c707c820094fd9d0b926a158-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 103973,
            "name": "第6期かおり杯棋聖戦Bリーグ",
            "director": {
                "id": 687819,
                "username": "site_tmp",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/c0dc1d7bd3ca7246ad298f30213416f4?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "このトーナメントは下記の方が参加予定です。空きがないため参加者となっていない方は参加することができません。\n\nThis tournament have already been “reserved” for members listed below. If you are not one among them, don’t click “Join this tournament!”. (There is no vacancy.)\n\nyuuna_resukaさん、金子太一さん、はっしーのアカウントさん、smith0108さん、Nebraskaさん、びくまるさん、nassyさん",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45251,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "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": 289,
                "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-06-10T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-06-10T11:00:25.759914Z",
            "ended": "2023-07-20T11:00:07.076250Z",
            "start_waiting": "2023-06-10T11:00:25.503057Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/72d62682e212eead0d609e73a208e83d-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 103931,
            "name": "Bella lì",
            "director": {
                "id": 1055696,
                "username": "deleted-dd2583d3-bb3a-42cb-a2fb-8c58bbe3d216",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/c176d6849a1892b9017c85f548813837-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1520.9618235200285,
                        "deviation": 65.86233200519976,
                        "volatility": 0.05999729225859075
                    }
                },
                "ranking": 24.624653373951272,
                "professional": false,
                "ui_class": ""
            },
            "description": "Fast tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12602,
                "name": "The Black Mamba GO Club",
                "summary": "Join the group if you want to have competitive tournaments like Kobe Bryant (The black mamba) did in his basketball career (NBA) . RIP Kobe.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 18,
                "icon": "https://user-uploads.online-go.com/273fd26c5b1b4a454ba968da7ec89540-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-06-10T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-06-10T09:00:25.071431Z",
            "ended": "2023-07-29T03:22:25.528396Z",
            "start_waiting": "2023-06-10T09:00:24.911467Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/273fd26c5b1b4a454ba968da7ec89540-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 51734,
            "name": "9x9 D.E. (Chinese Rules)",
            "director": {
                "id": 637865,
                "username": "John.Tromp.Math.Maniac",
                "country": "nl",
                "icon": "https://user-uploads.online-go.com/d3a7d663721e94d8a2a5d3846f290611-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n \n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n \n☆ Does NOT pause on the weekend.\n \n☆ If this sounds like a good time to you, please join us!\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.<BR><BR>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 592,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-09-15T01:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-09-15T01:00:31.548897Z",
            "ended": "2020-01-30T11:10:14.509501Z",
            "start_waiting": "2019-09-15T01:00:29.996099Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 137842,
            "name": "Go klub Písek Březen 2026",
            "director": {
                "id": 938281,
                "username": "lalca",
                "country": "cz",
                "icon": "https://user-uploads.online-go.com/68fb7ce9de99ede0203d1aff91b0a501-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1074.618025999794,
                        "deviation": 65.6163184978078,
                        "volatility": 0.0597508103035322
                    }
                },
                "ranking": 16.58286101757494,
                "professional": false,
                "ui_class": ""
            },
            "description": "Turnaj pro hráče Píseckého go klubu",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 39,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 30,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8367,
                "name": "Go klub Písek",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17,
                "icon": "https://user-uploads.online-go.com/2a6b5b6f74b19a2472d3d12151c82f6f-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-03-01T18:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2026-03-01T18:00:40.774982Z",
            "ended": "2026-03-01T18:54:49.877463Z",
            "start_waiting": "2026-03-01T18:00:40.665008Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2a6b5b6f74b19a2472d3d12151c82f6f-15.png",
            "player_count": 3,
            "ranked": true
        }
    ]
}