Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=ended&page=2646
{ "count": 59321, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=2647", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=2645", "results": [ { "id": 66559, "name": "Time Control", "director": { "id": 648332, "username": "niel406", "country": "_United_Federation_of_Planets", "icon": "https://secure.gravatar.com/avatar/d3f27826815487370052346b440022da?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2098.4530618024246, "deviation": 68.64604495473597, "volatility": 0.059986199523634855 } }, "ranking": 32.07565502381065, "professional": false, "ui_class": "" }, "description": "It pretty good tourament", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 4, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "blitz", "pause_on_weekends": false, "main_time": 5, "period_time": 4, "periods": 8 }, "is_open": true, "exclude_provisional": true, "group": { "id": 6892, "name": "UConn Go Club", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 1, "icon": "https://user-uploads.online-go.com/16d79d8ddf5a7d55b5d94286cf304bf2-64.png" }, "auto_start_on_max": false, "time_start": "2020-10-12T02:10:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-10-12T02:10:28.266847Z", "ended": "2020-10-12T02:10:28.214789Z", "start_waiting": "2020-10-12T02:10:28.064293Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/16d79d8ddf5a7d55b5d94286cf304bf2-15.png", "player_count": 1, "ranked": true }, { "id": 66560, "name": "Time Control", "director": { "id": 648332, "username": "niel406", "country": "_United_Federation_of_Planets", "icon": "https://secure.gravatar.com/avatar/d3f27826815487370052346b440022da?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2098.4530618024246, "deviation": 68.64604495473597, "volatility": 0.059986199523634855 } }, "ranking": 32.07565502381065, "professional": false, "ui_class": "" }, "description": "it already a thing", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 4, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "blitz", "pause_on_weekends": false, "main_time": 2, "period_time": 4, "periods": 8 }, "is_open": true, "exclude_provisional": true, "group": { "id": 6892, "name": "UConn Go Club", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 1, "icon": "https://user-uploads.online-go.com/16d79d8ddf5a7d55b5d94286cf304bf2-64.png" }, "auto_start_on_max": false, "time_start": "2020-10-12T02:14:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-10-12T02:14:28.490752Z", "ended": "2020-10-12T02:14:28.446748Z", "start_waiting": "2020-10-12T02:14:28.250895Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/16d79d8ddf5a7d55b5d94286cf304bf2-15.png", "player_count": 1, "ranked": true }, { "id": 55600, "name": "UOGC 9x9 Spring 2020", "director": { "id": 87790, "username": "WiseBear", "country": "ru", "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png", "ratings": { "version": 5, "overall": { "rating": 1104.0021061102002, "deviation": 62.08308547890164, "volatility": 0.06028822213904829 } }, "ranking": 17.207368885691388, "professional": false, "ui_class": "" }, "description": "UOGC 9x9 Spring 2020 tournament", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 87840, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 129600, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 4121, "name": "Universal Online Go Club", "summary": "No longer operated.", "require_invitation": true, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 149, "icon": "https://user-uploads.online-go.com/cc6e6be864d8216b119aa1f58db5a937-64.png" }, "auto_start_on_max": true, "time_start": "2020-04-12T23:00:00Z", "players_start": 24, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-04-12T23:00:36.205654Z", "ended": "2020-10-12T08:14:11.231764Z", "start_waiting": "2020-04-12T23:00:34.569410Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/cc6e6be864d8216b119aa1f58db5a937-15.png", "player_count": 27, "ranked": true }, { "id": 64713, "name": "Correspondence 9x9 RoundRobin 2020-08-26 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:20260411T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-11T19:00:35.817277Z", "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": "2026-04-14T19:00:00Z", "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": "2020-08-26T19:00:26.430818Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2020-08-26T19:01:12.181967Z", "ended": "2020-10-12T08:25:00.081776Z", "start_waiting": "2020-08-26T19:01:08.903486Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 66566, "name": "孫方中第一堂比賽", "director": { "id": 212102, "username": "關老師", "country": "hk", "icon": "https://secure.gravatar.com/avatar/d5ba894609aaf131293f3a54d86abda3?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2150.910125841699, "deviation": 76.64419155219224, "volatility": 0.06004910361666918 } }, "ranking": 32.6472431284603, "professional": false, "ui_class": "" }, "description": "請多多指教", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 16, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "live", "pause_on_weekends": false, "total_time": 1500 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7027, "name": "(2022-2023 第1期 ) 孫方中 圍棋 進階A班", "summary": "3/10，10/10，17/10，24/10，31/10，7/11，28/11，5/12，19/12，9/1，16/1.\n\n星期一 下午 2:30-3:45.\n\n ", "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": "2020-10-12T07:25:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2020-10-12T07:21:53.871925Z", "ended": "2020-10-12T08:30:49.371345Z", "start_waiting": "2020-10-12T07:21:53.720827Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 5, "ranked": true }, { "id": 59606, "name": "Revival Simultaneous McMahon (Japanese)", "director": { "id": 683771, "username": "isibboi", "country": "eu", "icon": "https://secure.gravatar.com/avatar/68022cd1bcdd544cdfb64bb6712b2036?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1353.2040802660636, "deviation": 63.083869063416294, "volatility": 0.05990999843508786 } }, "ranking": 21.919165188832064, "professional": false, "ui_class": "supporter" }, "description": "Many of your tournament games got cancelled after recent technical problems? Always when you check OGS, none of your opponents played a move? You should start a new tournament!\n\nThis tournament is designed to be interesting for everyone. McMahon with Slide pairing will ensure that you play against equal opponents, so the game is not decided before it starts.\n\nCome join and enjoy the fun!", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "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": 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": 8870, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png" }, "auto_start_on_max": false, "time_start": "2020-05-01T14:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-05-01T14:00:27.399618Z", "ended": "2020-10-12T08:47:40.445657Z", "start_waiting": "2020-05-01T14:00:25.233086Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png", "player_count": 10, "ranked": true }, { "id": 66565, "name": "12/10", "director": { "id": 814515, "username": "葉老師", "country": "un", "icon": "https://user-uploads.online-go.com/5e96b4140118b14808ddeec5c75ffef6-64.png", "ratings": { "version": 5, "overall": { "rating": 1333.919987824294, "deviation": 288.0880137262529, "volatility": 0.059999618290080874 } }, "ranking": 21.58688845512851, "professional": false, "ui_class": "provisional" }, "description": "12/10 5pm", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "chinese", "time_per_move": 20, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "live", "pause_on_weekends": false, "total_time": 1800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7038, "name": "培僑書院2020-2021下學期 圍棋初階A班", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 16, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-10-12T09:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2020-10-12T08:54:18.002771Z", "ended": "2020-10-12T10:13:37.113670Z", "start_waiting": "2020-10-12T08:54:17.854040Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 66572, "name": "12/10", "director": { "id": 817849, "username": "陳老師HKCGA", "country": "hk", "icon": "https://secure.gravatar.com/avatar/4ccda587956471138807c1b170cbe04c?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1473.180157408237, "deviation": 142.6836936592084, "volatility": 0.06000522259331714 } }, "ranking": 23.885717483412602, "professional": false, "ui_class": "" }, "description": "12/10", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "chinese", "time_per_move": 16, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "live", "pause_on_weekends": false, "total_time": 1500 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7039, "name": "培僑書院圍棋2020-2021下學期 進階A班", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 17, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-10-12T09:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2020-10-12T08:52:11.450559Z", "ended": "2020-10-12T10:15:43.815833Z", "start_waiting": "2020-10-12T08:52:11.253682Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 8, "ranked": true }, { "id": 58127, "name": "martha dienstag", "director": { "id": 741532, "username": "LucasZ", "country": "de", "icon": "https://secure.gravatar.com/avatar/11bde9b5b88074cd9129447baa5f6ba5?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 831.8284597322307, "deviation": 70.21555745641709, "volatility": 0.06003082455103636 } }, "ranking": 10.654277708420931, "professional": false, "ui_class": "" }, "description": "das martha turnier", "schedule": null, "title": null, "tournament_type": "mcmahon", "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": 4604, "name": "Martha", "summary": "Spieltreff Martha", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 76, "icon": "https://user-uploads.online-go.com/03e3b412dc40088d78aaa8f39f57b16a-64.png" }, "auto_start_on_max": false, "time_start": "2020-03-31T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 30, "analysis_enabled": true, "exclusivity": "open", "started": "2020-03-31T17:00:03.691070Z", "ended": "2020-10-12T14:58:02.165397Z", "start_waiting": "2020-03-31T17:00:02.323208Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/03e3b412dc40088d78aaa8f39f57b16a-15.png", "player_count": 10, "ranked": true }, { "id": 66582, "name": "Live 9x9 Double Elimination Tournament 2020-10-12 14:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260412T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-12T18:00:35.981371Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-04-12T22:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2020-10-12T14:30:01.221104Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-10-12T14:30:03.150944Z", "ended": "2020-10-12T15:23:06.114571Z", "start_waiting": "2020-10-12T14:30:02.581788Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true } ] }
