Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=3139
{ "count": 59739, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=3140", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=3138", "results": [ { "id": 20575, "name": "Blitz 13x13 Swiss Tournament 2016-09-11 07:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260524T110000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-05-24T11:00:16.385567Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-05-24T15:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-09-11T07:30:52.044470Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-09-11T07:31:53.993286Z", "ended": "2016-09-11T08:25:44.366879Z", "start_waiting": "2016-09-11T07:31:53.418349Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 110632, "name": "Gguhyjh", "director": { "id": 1466558, "username": "Parsival3000", "country": "un", "icon": "https://user-uploads.online-go.com/602249b448222c8d9ea7e75d3713b27f-64.png", "ratings": { "version": 5, "overall": { "rating": 729.1447501289358, "deviation": 70.40278156242938, "volatility": 0.06002146785960292 } }, "ranking": 7.604173321181711, "professional": false, "ui_class": "" }, "description": "Gryhuy7", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 40, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 30, "periods": 5 }, "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": 8892, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png" }, "auto_start_on_max": false, "time_start": "2023-12-14T16:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-03-22T08:53:17.484367Z", "ended": "2025-03-22T09:26:16.697868Z", "start_waiting": "2025-03-22T08:53:17.411924Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png", "player_count": 4, "ranked": true }, { "id": 51139, "name": "13x13 game", "director": { "id": 554795, "username": "SCHK", "country": "hk", "icon": "https://user-uploads.online-go.com/29a627896f2922cd04767890d80040fe-64.png", "ratings": { "version": 5, "overall": { "rating": 1349.0299708028913, "deviation": 67.99661262905937, "volatility": 0.06030924370756697 } }, "ranking": 21.84764606124955, "professional": false, "ui_class": "" }, "description": "Hong Kong is not China !\nHong Kong is at the crossroads and deserves international support.", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "chinese", "time_per_move": 89280, "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": 3852, "name": "Hong Kong ", "summary": "First priority : HK people join plz \nThis group welcomes everyone, but only if you don't be rude.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 148, "icon": "https://user-uploads.online-go.com/cb4f2676677eaafca853a69c876d0443-64.png" }, "auto_start_on_max": false, "time_start": "2019-09-02T01:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 19, "analysis_enabled": true, "exclusivity": "open", "started": "2019-09-02T01:00:27.386343Z", "ended": "2020-03-26T13:20:13.498142Z", "start_waiting": "2019-09-02T01:00:26.635077Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/cb4f2676677eaafca853a69c876d0443-15.png", "player_count": 10, "ranked": true }, { "id": 388, "name": "Another labrat mini-tournament", "director": { "id": 15869, "username": "labrat", "country": "gb", "icon": "https://user-uploads.online-go.com/be27728d54d30a40bc7c9c1c917a057c-64.png", "ratings": { "version": 5, "overall": { "rating": 1128.8440730480431, "deviation": 67.67955653215964, "volatility": 0.059998187186116624 } }, "ranking": 17.72250984813641, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 19, "analysis_enabled": false, "exclusivity": "open", "started": "2007-12-14T09:10:00Z", "ended": "2008-01-28T08:41:00Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 77818, "name": "Correspondence 13x13 RoundRobin 2021-07-21 19:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260522T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-05-22T19:00:16.590557Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 13, "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": "2026-05-25T19:00:00Z", "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": "2021-07-21T19:00:52.083975Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2021-07-21T19:01:52.739857Z", "ended": "2021-09-08T08:19:42.760071Z", "start_waiting": "2021-07-21T19:01:51.340278Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 10, "ranked": true }, { "id": 1001, "name": "Blade707's Tournament of Higher Ranked Champions", "director": { "id": 27733, "username": "Blade707", "country": "us", "icon": "https://secure.gravatar.com/avatar/af356da047389386bbbd9de4fcb091e2?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1072.3044306280149, "deviation": 81.27508787268609, "volatility": 0.06001938800153272 } }, "ranking": 16.532966571295127, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 432000, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2010-01-22T06:22:23Z", "ended": "2010-01-22T05:22:23Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 99151, "name": "Oza Treizes Title Tournament 2023", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2004.4188438214221, "deviation": 67.71437067217448, "volatility": 0.06015576961047741 } }, "ranking": 31.014313855840236, "professional": false, "ui_class": "supporter" }, "description": "Oza Treizes Title Tournament 2023\n\nTitle Holder:\n<a style=\"color:cyan\" href='https://online-go.com/user/view/43936/'>Sadaharu [Treizes Oza] x4</a>\n\n\nHall of Fame:\n<table style=\"text-align:center;border:1px solid\">\n<tr>\n\t<th style=\"border:1px solid\">Year</th>\n\t<th style=\"border:1px solid\">Title Match Winner</th>\n\t<th style=\"border:1px solid\">Score</th>\n\t<th style=\"border:1px solid\">Title Match Runner-up</th>\n\t<th style=\"border:1px solid\">Title Tournament Winner<img src='http://i.imgur.com/kVzSrke.png' alt='Gold'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament Runner-up<img src='http://i.imgur.com/ta7bMkV.png' alt='Silver'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament 3rd Place<img src='http://i.imgur.com/HtQoWtV.png' alt='Bronze'></img></th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/9743'>2016</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Sadaharu (5d)</b></td>\n\t<td>hiryuu (4k)</td>\n\t<td>mark5000 (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/20807'>2017</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td><a href='https://online-go.com/game/13149559'>4-1</a></td>\n\t<td>Winterfell</td>\n\t<td><b>Winterfell (5d)</b></td>\n\t<td>tupelo (3d)</td>\n\t<td>gogop2016 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/31472'>2018</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td><a href='https://online-go.com/game/19512589'>5-0</a></td>\n\t<td>Baklan</td>\n\t<td><b>Baklan (7d)</b></td>\n\t<td>Sadaharu (9d+)</td>\n\t<td>micky0427 (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/43367'>2019</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td><a href='https://online-go.com/tournament/73475'>4-1</a></td>\n\t<td>Utaha</td>\n\t<td><b>Sadaharu [8d]</b></td>\n\t<td>Utaha [1d]</td>\n\t<td>hokaw [2d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/54435'>2020</a></td>\n\t<td>TBA: Sadaharu</td>\n\t<td>vs</td>\n\t<td>Xaloc</td>\n\t<td><b>Xaloc [2d]</b></td>\n\t<td>找借口安静 [1d]</td>\n\t<td>tupelo [2d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/69270'>2021</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Novakun [4d]</b></td>\n\t<td>DMITRYSIR123 [3d]</td>\n\t<td>Sadaharu [5d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/85294'>2022</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td>Ongoing: Round 3</td>\n\t<td></td>\n</tr>\n</table>\n\nNotes:\n- The starting time on this page is an approximation and subject to change. It will be finalized once the announcement is posted in <a href='https://online-go.com/group/515'>OGS Title Tournaments</a> group and <a href='https://forums.online-go.com/t/title-tournament-announcements/10408/'>Title Tournament Announcement</a>.\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 96625, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 604800, "max_time": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 515, "name": "OGS Title Tournaments", "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? Join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 2978, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2023-03-11T10:00:00Z", "players_start": 80, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-03-11T10:00:18.015194Z", "ended": "2024-04-21T21:19:14.795305Z", "start_waiting": "2023-03-11T10:00:13.473692Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 80, "ranked": true }, { "id": 58, "name": "touchpoint's mini-tournament", "director": { "id": 2213, "username": "touchpoint", "country": "un", "icon": "https://secure.gravatar.com/avatar/58d3ed14bfa797bc1f2247ac2488f597?s=64&d=retro", "ratings": { 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"exclusivity": "open", "started": "2006-02-03T02:15:00Z", "ended": "2006-06-30T16:29:00Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 72640, "name": "Серёжа, приглашаю на турнир", "director": { "id": 853108, "username": "irina.micik200", "country": "un", "icon": "https://secure.gravatar.com/avatar/eda889420684267c4f133ee969b6b481?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1040.489710450884, "deviation": 122.67695361782644, "volatility": 0.06000862019526443 } }, "ranking": 15.835722639579192, "professional": false, "ui_class": "" }, "description": "Крутой турнир", "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, 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