{"count":59725,"next":"https://online-go.com/api/v1/tournaments?format=json&ordering=-board_size&page=1543","previous":"https://online-go.com/api/v1/tournaments?format=json&ordering=-board_size&page=1541","results":[{"id":121782,"name":"19x19 Open D.E. Cup #88","director":{"id":1015644,"username":"wiadp1","country":"pl","icon":"https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png","ratings":{"version":5,"overall":{"rating":1265.6381320799273,"deviation":68.45146566167001,"volatility":0.06021111954537579}},"ranking":20.370459682660336,"professional":false,"ui_class":""},"description":"Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599","schedule":null,"title":null,"tournament_type":"double_elimination","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":false,"group":{"id":12599,"name":"GO Special Tournaments","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":73,"icon":"https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"},"auto_start_on_max":true,"time_start":"2024-11-10T22:00:00Z","players_start":8,"first_pairing_method":"random","subsequent_pairing_method":"random","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2024-11-10T00:02:46.988621Z","ended":"2025-11-18T05:04:44.244672Z","start_waiting":"2024-11-10T00:02:46.886862Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png","player_count":8,"ranked":true},{"id":122713,"name":"Abingdon Christmas Tournament","director":{"id":204231,"username":"Duin","country":"gb","icon":"https://secure.gravatar.com/avatar/5aa764ab93c95913061ebff5402129d7?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1196.1440994007148,"deviation":65.68867963997637,"volatility":0.06005358604942281}},"ranking":19.063102451897503,"professional":false,"ui_class":"supporter"},"description":"Everyone welcome, from beginners upwards. You get several days per turn so you just need to check in every day or so.","schedule":null,"title":null,"tournament_type":"s_mcmahon","handicap":0,"rules":"aga","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":12962,"name":"Abingdon School","summary":"","require_invitation":false,"is_public":false,"admin_only_tournaments":true,"hide_details":false,"member_count":28,"icon":"https://user-uploads.online-go.com/b749fdd8e51e6aad42c5bed1302a597e-64.png"},"auto_start_on_max":false,"time_start":"2024-12-07T15:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"group","started":"2024-12-07T15:00:11.515859Z","ended":"2025-04-12T05:28:23.190401Z","start_waiting":"2024-12-07T15:00:11.135799Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/b749fdd8e51e6aad42c5bed1302a597e-15.png","player_count":7,"ranked":true},{"id":121104,"name":"HAPPY GO #86 Double Elimination","director":{"id":1220803,"username":"nobhaete","country":"cn","icon":"https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png","ratings":{"version":5,"overall":{"rating":1956.404932681124,"deviation":72.24030560891954,"volatility":0.05982811470334954}},"ranking":30.453028347740766,"professional":false,"ui_class":""},"description":"Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.","schedule":null,"title":null,"tournament_type":"double_elimination","handicap":0,"rules":"chinese","time_per_move":43884,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":false,"time_increment":43200,"initial_time":86400,"max_time":172800},"is_open":true,"exclude_provisional":true,"group":{"id":12619,"name":"Happy Go!!!","summary":"Feel free to join and create tournaments！\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday    \nSingle Elimination tournaments every Thursday\n\nHAPPY","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":72,"icon":"https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"},"auto_start_on_max":false,"time_start":"2024-10-20T04:00:00Z","players_start":4,"first_pairing_method":"random","subsequent_pairing_method":"random","min_ranking":5,"max_ranking":33,"analysis_enabled":true,"exclusivity":"open","started":"2024-10-20T04:00:24.933856Z","ended":"2025-03-13T12:24:26.992941Z","start_waiting":"2024-10-20T04:00:24.871143Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png","player_count":5,"ranked":true},{"id":70619,"name":"Beat the kyu be a dan 2022","director":{"id":281554,"username":"TYDC","country":"_DOOP","icon":"https://user-uploads.online-go.com/bbd482f273f613d97a246c2d297b822c-64.png","ratings":{"version":5,"overall":{"rating":1790.2521076909397,"deviation":63.67213133520528,"volatility":0.05991640878307264}},"ranking":28.398416798351004,"professional":false,"ui_class":""},"description":"No pause/vacation\n\nNo provisional rank( sandbagging)\n\nNo AI support\n\nEarly registration for the 2022 tourney. \n\nThis series will be hosted on VNOGS from 2022.\nPlayers who have never reached dan level before are eligible for this tournament. This tournament means to be fast correspondence; therefore, players who use vacation to delay our progress will be disqualified. \n\nThanks for your cooperation, enjoy.","schedule":null,"title":null,"tournament_type":"s_mcmahon","handicap":0,"rules":"japanese","time_per_move":46080,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":false,"time_increment":43200,"initial_time":259200,"max_time":604800},"is_open":true,"exclude_provisional":true,"group":{"id":7685,"name":"24HGO_OGS","summary":"<audio src=\"/music/good_enough.mp3\" controls>\t\n<p>Fallback content goes here.</p>\n</audio>","require_invitation":false,"is_public":false,"admin_only_tournaments":false,"hide_details":false,"member_count":86,"icon":"https://user-uploads.online-go.com/605421e94b90e6e3b22ec09b80180283-64.png"},"auto_start_on_max":false,"time_start":"2022-01-01T03:00:00Z","players_start":4,"first_pairing_method":"strength","subsequent_pairing_method":"strength","min_ranking":5,"max_ranking":29,"analysis_enabled":false,"exclusivity":"open","started":"2022-01-01T03:00:26.797309Z","ended":"2024-11-18T01:09:58.139663Z","start_waiting":"2022-01-01T03:00:21.126906Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/605421e94b90e6e3b22ec09b80180283-15.png","player_count":101,"ranked":true},{"id":105477,"name":"99锦标赛","director":{"id":1366314,"username":"各位置上","country":"cn","icon":"https://secure.gravatar.com/avatar/89e5f54bd3b10d996bfe4589a1bba4ba?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1176.1218032200911,"deviation":70.0986111551344,"volatility":0.06007140423343921}},"ranking":18.67231391261649,"professional":false,"ui_class":""},"description":"完了完了了","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":25,"name":"Go Basics","summary":"A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":17974,"icon":"https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"},"auto_start_on_max":false,"time_start":"2023-07-17T06:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2025-04-07T04:57:14.107288Z","ended":"2025-04-17T15:24:07.957111Z","start_waiting":"2025-04-07T04:57:14.039365Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png","player_count":4,"ranked":true},{"id":123089,"name":"PG DDK 19x19 B League December 2024 Correspondence","director":{"id":766632,"username":"MushNine","country":"gb","icon":"https://secure.gravatar.com/avatar/1b01a1b708119bbcc3daa4ecbcaa40e0?s=64&d=retro","ratings":{"version":5,"overall":{"rating":990.2897879120816,"deviation":62.971215031947494,"volatility":0.05998876168260425}},"ranking":14.690975016556624,"professional":false,"ui_class":""},"description":"Enjoy!","schedule":null,"title":null,"tournament_type":"elimination","handicap":0,"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":259200},"is_open":true,"exclude_provisional":true,"group":{"id":7228,"name":"DDK Proving Grounds (Double Digit Kyu)","summary":"A place for DDK's to play against other DDK's without fear of SDK's trying to hop in. We do B League (25k-18k) & A League (17k-10k) tournaments monthly.","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":648,"icon":"https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-64.png"},"auto_start_on_max":false,"time_start":"2024-12-17T16:00:00Z","players_start":4,"first_pairing_method":"strength","subsequent_pairing_method":"strength","min_ranking":5,"max_ranking":12,"analysis_enabled":false,"exclusivity":"open","started":"2024-12-17T16:00:54.644646Z","ended":"2025-06-04T09:39:03.193167Z","start_waiting":"2024-12-17T16:00:54.447880Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-15.png","player_count":17,"ranked":true},{"id":129084,"name":"Blitz 19x19 Elimination Tournament 2025-06-03 13:30","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 Site-wide Tournament","schedule":{"id":1,"name":"Blitz 19x19 Elimination Tournament","rrule":"DTSTART:20260521T210000Z\nRRULE:FREQ=HOURLY;INTERVAL=4","active":true,"created":"2014-12-20T06:06:42.010011Z","last_run":"2026-05-21T21:00:16.067640Z","lead_time_seconds":1800,"tournament_type":"elimination","handicap":0,"rules":"japanese","size":19,"time_control_parameters":{"time_control":"byoyomi","period_time":10,"main_time":120,"periods":5},"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":"2026-05-22T01:00:00Z","base_points":"10.0"},"title":null,"tournament_type":"elimination","handicap":0,"rules":"japanese","time_per_move":11,"time_control_parameters":{"time_control":"byoyomi","period_time":10,"main_time":120,"periods":5},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2025-06-03T13:30:41.120162Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slide","min_ranking":0,"max_ranking":36,"analysis_enabled":false,"exclusivity":"open","started":"2025-06-03T13:31:41.186903Z","ended":"2025-06-03T13:44:09.361368Z","start_waiting":"2025-06-03T13:31:41.125291Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":5,"ranked":true},{"id":122042,"name":"Pirates & Parrots ! Tournament #2 (Do your best to seize the victory treasure）","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":"Pirate treasure plunder battle competition","schedule":null,"title":null,"tournament_type":"s_mcmahon","handicap":0,"rules":"nz","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":true,"group":{"id":13979,"name":"Pirates & Parrots !","summary":"\n\n\n<a href=\"https://info.flagcounter.com/mQ62\"><img src=\"https://s11.flagcounter.com/count/mQ62/bg_000000/txt_FFFFFF/border_8000FF/columns_3/maxflags_12/viewers_0/labels_0/pageviews_0/flags_0/percent_0/\" alt=\"Flag Counter\" border=\"0\"></a>\n\n<a href=\"https:/","require_invitation":true,"is_public":false,"admin_only_tournaments":true,"hide_details":true,"member_count":2,"icon":"https://user-uploads.online-go.com/1bce9672ed09a40198ff7c83ebcf0de6-64.png"},"auto_start_on_max":true,"time_start":"2024-11-12T13:00:00Z","players_start":4,"first_pairing_method":"random","subsequent_pairing_method":"random","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2024-11-12T13:01:18.532004Z","ended":"2025-08-07T15:58:05.514434Z","start_waiting":"2024-11-12T13:01:17.050664Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/1bce9672ed09a40198ff7c83ebcf0de6-15.png","player_count":13,"ranked":true},{"id":121917,"name":"Go to Go War #3","director":{"id":1436588,"username":"Arrow A6 anti-","country":"zz","icon":"https://user-uploads.online-go.com/8670729a0e8d1142fea14d8bd6800517-64.png","ratings":{"version":5,"overall":{"rating":588.6751839572613,"deviation":80.73457404236709,"volatility":0.0636275307525229}},"ranking":5,"professional":false,"ui_class":""},"description":"<h2><a Href=\"https://online-go.com/group/13797\"><span  style=\"color:gold;\"><u>  Go advance forward forever&#20<a Href=\"https://online-go.com/group/13797\">welcome to join</u>\n</a></h2>\n\n<a href=\"https://info.flagcounter.com/md0I\"><img src=\"https://s01.flagcounter.com/map/md0I/size_s/txt_000000/border_000000/pageviews_1/viewers_3/flags_1/\" alt=\"Flag Counter\" border=\"0\"></a>\n\n<H1>Go to Go War</H1>","schedule":null,"title":null,"tournament_type":"mcmahon","handicap":-1,"rules":"ing","time_per_move":4787,"time_control_parameters":{"system":"absolute","time_control":"absolute","speed":"correspondence","pause_on_weekends":true,"total_time":604800},"is_open":true,"exclude_provisional":true,"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":"2024-11-08T20:00:00Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2024-11-08T20:00:12.630190Z","ended":"2025-01-02T12:28:15.431594Z","start_waiting":"2024-11-08T20:00:12.497665Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png","player_count":8,"ranked":true},{"id":129087,"name":"Handicap Arena 2025 - 044","director":{"id":526987,"username":"Gia","country":"gr","icon":"https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png","ratings":{"version":5,"overall":{"rating":1078.2474990725018,"deviation":64.47389607256166,"volatility":0.060064289319200645}},"ranking":16.660917338564136,"professional":false,"ui_class":"supporter"},"description":"Part of an arena tournament. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as there are 5 players.","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":-1,"rules":"japanese","time_per_move":88451,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","time_increment":86400,"initial_time":259200,"max_time":604800},"is_open":true,"exclude_provisional":true,"group":{"id":13655,"name":"Handicap Arena","summary":"Organising arena-type handicap correspondence tournaments.","require_invitation":false,"is_public":true,"admin_only_tournaments":true,"hide_details":false,"member_count":107,"icon":"https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"},"auto_start_on_max":true,"time_start":"2025-06-06T16:00:00Z","players_start":5,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2025-06-04T20:26:46.952794Z","ended":"2025-09-08T09:48:04.659217Z","start_waiting":"2025-06-04T20:26:46.808930Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png","player_count":5,"ranked":true}]}