List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4308
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59227,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4309",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=4307",
    "results": [
        {
            "id": 41084,
            "name": "順位戦(仮)",
            "director": {
                "id": 557774,
                "username": "who?min",
                "country": "jp",
                "icon": "https://secure.gravatar.com/avatar/414762d835828a845a53c3ea8136b8eb?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1483.736427397271,
                        "deviation": 61.53544049610674,
                        "volatility": 0.06001738230882529
                    }
                },
                "ranking": 24.051010403554294,
                "professional": false,
                "ui_class": ""
            },
            "description": "OGSだと適正な手合でトーナメントは難しいのでとりあえずオール互戦で総当たりにします。\nそこから適当に点数決めて出来たらいいな…\nという訳で段位者とも互戦で打てるチャンスかもね!\n最大6人です。\n持ち時間は少し短く一手1日最大2日にします。\n参加出来るかたよろしくね!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 172800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2854,
                "name": "石音(いしのおと)",
                "summary": "非公開グループとなっております。\n\n基本棋譜の外部への記載は無しでお願いします。双方の合意が取れた場合は構いません。\n\n順位戦の順位等も非公開でお願いします。\n\n勝ち上がりトーナメントは自由参加で大丈夫でーす。\n\n石音は\n石の音\n意思ノート=棋譜\nをかけたものです",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 11,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2018-09-23T01:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2018-09-22T05:34:13.277533Z",
            "ended": "2018-10-09T08:56:15.534972Z",
            "start_waiting": "2018-09-22T05:34:11.925466Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 41128,
            "name": "順位戦2(仮)",
            "director": {
                "id": 557774,
                "username": "who?min",
                "country": "jp",
                "icon": "https://secure.gravatar.com/avatar/414762d835828a845a53c3ea8136b8eb?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1483.736427397271,
                        "deviation": 61.53544049610674,
                        "volatility": 0.06001738230882529
                    }
                },
                "ranking": 24.051010403554294,
                "professional": false,
                "ui_class": ""
            },
            "description": "OGSだと適正な手合でトーナメントは難しいのでとりあえずオール互戦で総当たりにします。 そこから適当に点数決めて出来たらいいな… という訳で段位者とも互戦で打てるチャンスかもね! 最大6人です。 持ち時間は少し短く一手1日最大2日にします。 参加出来るかたよろしくね!\n既に順位戦に参加してるかたは無しでお願いします!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 172800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2854,
                "name": "石音(いしのおと)",
                "summary": "非公開グループとなっております。\n\n基本棋譜の外部への記載は無しでお願いします。双方の合意が取れた場合は構いません。\n\n順位戦の順位等も非公開でお願いします。\n\n勝ち上がりトーナメントは自由参加で大丈夫でーす。\n\n石音は\n石の音\n意思ノート=棋譜\nをかけたものです",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 11,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2018-09-23T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2018-09-24T02:44:43.214360Z",
            "ended": "2018-10-06T10:38:04.216930Z",
            "start_waiting": "2018-09-24T02:44:42.190610Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 39358,
            "name": "Fast Correspondence – August 2018 (A)",
            "director": {
                "id": 784,
                "username": "mlopezviedma",
                "country": "ar",
                "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1564.3065200533513,
                        "deviation": 62.387309123038435,
                        "volatility": 0.05973514783464534
                    }
                },
                "ranking": 25.27516129559967,
                "professional": false,
                "ui_class": "supporter moderator"
            },
            "description": "**Please, avoid delaying your games using the vacation feature. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).**",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30720,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "time_increment": 28800,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 819,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-07-31T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2018-07-31T00:01:00.978746Z",
            "ended": "2018-09-24T21:24:25.928241Z",
            "start_waiting": "2018-07-31T00:00:57.019305Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 89625,
            "name": "Correspondence 9x9 RoundRobin 2022-05-06 19:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 5,
                "name": "Correspondence 9x9 RoundRobin",
                "rrule": "DTSTART:20260402T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:56:18.340749Z",
                "last_run": "2026-04-02T19:00:15.771573Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-04-05T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2022-05-06T19:00:08.571082Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-05-06T19:01:08.962571Z",
            "ended": "2022-06-13T18:29:56.620354Z",
            "start_waiting": "2022-05-06T19:01:08.407591Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 89664,
            "name": "Live Tournament",
            "director": {
                "id": 1095664,
                "username": "USE17",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/8a6e68aaae476904d26cb7a7372643ea?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1188.792006203979,
                        "deviation": 61.76404829061147,
                        "volatility": 0.0606255655038105
                    }
                },
                "ranking": 18.920372006199532,
                "professional": false,
                "ui_class": ""
            },
            "description": "Beginner tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 13,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 150,
                "period_time": 12,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6993,
                "name": "Live Tournaments",
                "summary": "A group for players who enjoy live tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 26,
                "icon": "https://user-uploads.online-go.com/a9ac8506a91a3dc2dedf5e9cebc56769-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-05-07T01:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-05-07T01:00:25.347403Z",
            "ended": "2022-05-07T01:09:48.760788Z",
            "start_waiting": "2022-05-07T01:00:25.286436Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a9ac8506a91a3dc2dedf5e9cebc56769-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 126647,
            "name": "Testing",
            "director": {
                "id": 1429536,
                "username": "Миша_HGO",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/68a6aaf98710e44bb2beb5c30d95867a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1679.48182556769,
                        "deviation": 66.99964656399443,
                        "volatility": 0.06022449615529763
                    }
                },
                "ranking": 26.919799825302597,
                "professional": false,
                "ui_class": ""
            },
            "description": "Тестkkkk",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "blitz",
                "pause_on_weekends": false,
                "main_time": 60,
                "period_time": 10,
                "periods": 10
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15142,
                "name": "Ekaterinburg",
                "summary": "Previous winners:\n\nHappy 19х19:\n\n    Happy 19x19 #1 - Chlowski\n    Happy 19x19 #2 - registration\n\nHappy 13x13:\n\n    Happy 13x13 #1 - registration\n\nHappy 9x9:\n\n    Happy 9x9 #1 - in progress",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/9c663c990d9af1cdaec895b7401d3585-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-03-21T14:10:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-03-21T14:10:17.366106Z",
            "ended": "2025-03-21T14:11:07.114148Z",
            "start_waiting": "2025-03-21T14:10:17.303861Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9c663c990d9af1cdaec895b7401d3585-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 40895,
            "name": "Brasil Primavera 2018 · D",
            "director": {
                "id": 307866,
                "username": "swafaron",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/c62da84b968b7d03ab1235c4e4988c13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1568.7246028591371,
                        "deviation": 62.77870530874028,
                        "volatility": 0.05985028812148364
                    }
                },
                "ranking": 25.340451859744853,
                "professional": false,
                "ui_class": ""
            },
            "description": "Brasil Primavera 2018 · Liga D",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30720,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 259200,
                "time_increment": 28800,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1527,
                "name": "Brasil",
                "summary": "Ponto de encontro dos jogadores brasileiros",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 487,
                "icon": "https://user-uploads.online-go.com/94104bdcbaa52ac8e424a6fb2a6b03a4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-09-23T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 14,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2018-09-23T11:00:44.256778Z",
            "ended": "2019-01-12T10:45:01.489953Z",
            "start_waiting": "2018-09-23T11:00:39.904893Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/94104bdcbaa52ac8e424a6fb2a6b03a4-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 114625,
            "name": "无间勤碁术化 亲睦赛",
            "director": {
                "id": 1479473,
                "username": "奕时奕猷",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/9572aa46fbc22206833b7c78bbde6516-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 824.15575102247,
                        "deviation": 80.44087622650385,
                        "volatility": 0.06002558642246016
                    }
                },
                "ranking": 10.439753346961126,
                "professional": false,
                "ui_class": ""
            },
            "description": "无间勤碁术化 亲睦赛\nWelcome , Have fun",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 496,
                "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-04-12T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-04-12T17:00:55.007805Z",
            "ended": "2026-01-30T12:01:03.776559Z",
            "start_waiting": "2024-04-12T17:00:54.297084Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png",
            "player_count": 42,
            "ranked": true
        },
        {
            "id": 40791,
            "name": "Lions 9 - November 2018",
            "director": {
                "id": 557899,
                "username": "🦁 Lvicala 🦁",
                "country": "cz",
                "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1215.5307681865688,
                        "deviation": 63.83387610820817,
                        "volatility": 0.060058613626475424
                    }
                },
                "ranking": 19.435301089469824,
                "professional": false,
                "ui_class": ""
            },
            "description": "9 x 9.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 29760,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 172800,
                "time_increment": 28800,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2773,
                "name": "Lions",
                "summary": "for all fighters like lion :)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8,
                "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-11-01T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-11-01T09:00:37.511634Z",
            "ended": "2019-01-06T21:47:13.110920Z",
            "start_waiting": "2018-11-01T09:00:36.150173Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-15.png",
            "player_count": 18,
            "ranked": true
        },
        {
            "id": 126781,
            "name": "Third",
            "director": {
                "id": 712834,
                "username": "Queen of Light",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/44f5ae926d3739a604b0057d209dc677-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 695.7619953388257,
                        "deviation": 63.939226424946774,
                        "volatility": 0.06005707402483686
                    }
                },
                "ranking": 6.519257113219938,
                "professional": false,
                "ui_class": ""
            },
            "description": "oui je sais le nom est pourri chut.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 90782,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 14958,
                "name": "Les gens qui aiment le go",
                "summary": "",
                "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": "2025-04-08T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-04-06T19:30:28.538031Z",
            "ended": "2025-11-15T14:57:33.165420Z",
            "start_waiting": "2025-04-06T19:30:28.337708Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        }
    ]
}