{"count":59467,"next":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=4011","previous":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=4009","results":[{"id":45254,"name":"DDK.NL Go Club - 9x9 Hustle Up #2","director":{"id":463810,"username":"SuzieKyu","country":"nl","icon":"https://user-uploads.online-go.com/62a582e29c917f3dfcb81bce64a13f7a-64.png","ratings":{"version":5,"overall":{"rating":1171.4995125731932,"deviation":63.025646037873635,"volatility":0.06000597450469722}},"ranking":18.5811525604583,"professional":false,"ui_class":""},"description":"9x9 double elimination tournament","schedule":null,"title":null,"tournament_type":"double_elimination","handicap":0,"rules":"japanese","time_per_move":93120,"time_control_parameters":{"period_time":86400,"main_time":604800,"system":"byoyomi","pause_on_weekends":false,"time_control":"byoyomi","periods":5,"speed":"correspondence"},"is_open":true,"exclude_provisional":true,"group":{"id":2979,"name":"Internatio.NL Go Club","summary":"Virtuele DDK club voor Nederlandse spelers en hun vrienden","require_invitation":true,"is_public":false,"admin_only_tournaments":false,"hide_details":false,"member_count":64,"icon":"https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-64.png"},"auto_start_on_max":true,"time_start":"2019-02-09T11:00:00Z","players_start":6,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":20,"analysis_enabled":true,"exclusivity":"open","started":"2019-02-07T08:36:36.309279Z","ended":"2019-05-08T15:24:27.734671Z","start_waiting":"2019-02-07T08:36:35.874378Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-15.png","player_count":10,"ranked":true},{"id":135025,"name":"Correspondence 19x19 RoundRobin 2025-12-05 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 Site-wide Tournament","schedule":{"id":6,"name":"Correspondence 19x19 RoundRobin","rrule":"DTSTART:20260424T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:58:31.027016Z","last_run":"2026-04-24T19:00:17.553063Z","lead_time_seconds":86400,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","size":19,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"pause_on_weekends":true,"max_time":432000,"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":"2026-04-27T19:00:00Z","base_points":"10.0"},"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":88451,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"pause_on_weekends":true,"max_time":432000,"time_increment":86400},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2025-12-05T19:00:53.777900Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2025-12-05T19:01:11.390588Z","ended":"2026-02-20T16:29:33.045938Z","start_waiting":"2025-12-05T19:01:11.076715Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":7,"ranked":true},{"id":81708,"name":"GO!!!","director":{"id":1061684,"username":"Blazeates","country":"un","icon":"https://secure.gravatar.com/avatar/b85154349b54f306661ff5caa3f2e06b?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1083.1019297648975,"deviation":136.3432775552472,"volatility":0.05999091162809292}},"ranking":16.764908167627603,"professional":false,"ui_class":""},"description":"Prooooooo","schedule":null,"title":null,"tournament_type":"mcmahon","handicap":0,"rules":"ing","time_per_move":15360,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":true,"time_increment":14400,"initial_time":86400,"max_time":345600},"is_open":true,"exclude_provisional":false,"group":{"id":10413,"name":"Bonibonlar","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":42,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg"},"auto_start_on_max":false,"time_start":"2021-10-25T10:38:00Z","players_start":8,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":30,"analysis_enabled":true,"exclusivity":"open","started":"2021-10-25T10:38:54.123311Z","ended":"2021-10-27T10:38:59.108381Z","start_waiting":"2021-10-25T10:38:53.985105Z","board_size":9,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":8,"ranked":true},{"id":8312,"name":"Correspondence 19x19 RoundRobin 2015-06-16 01:00","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":6,"name":"Correspondence 19x19 RoundRobin","rrule":"DTSTART:20260424T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:58:31.027016Z","last_run":"2026-04-24T19:00:17.553063Z","lead_time_seconds":86400,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","size":19,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"pause_on_weekends":true,"max_time":432000,"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":"2026-04-27T19:00:00Z","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,"max_time":432000,"time_increment":86400},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2015-06-16T01:00:29.844803Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2015-06-16T01:00:52.096662Z","ended":"2015-11-22T18:03:45.992209Z","start_waiting":"2015-06-16T01:00:51.126941Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":10,"ranked":true},{"id":111122,"name":"Here we Go Round Robin","director":{"id":699769,"username":"jeroentjeb","country":"ca","icon":"https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png","ratings":{"version":5,"overall":{"rating":1460.6249146511102,"deviation":66.34105943855184,"volatility":0.06012428719076298}},"ranking":23.687575045812707,"professional":false,"ui_class":"supporter"},"description":"Here we Go! 9kyu-5kyu Round Robin","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":30851,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":true,"time_increment":28800,"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":17917,"icon":"https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"},"auto_start_on_max":true,"time_start":"2024-01-02T15:00:00Z","players_start":7,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":21,"max_ranking":25,"analysis_enabled":true,"exclusivity":"open","started":"2024-01-02T11:31:38.482004Z","ended":"2024-02-19T18:35:55.958611Z","start_waiting":"2024-01-02T11:31:38.182741Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png","player_count":7,"ranked":true},{"id":111615,"name":"Correspondence 13x13 RoundRobin 2024-01-13 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 Site-wide Tournament","schedule":{"id":7,"name":"Correspondence 13x13 RoundRobin","rrule":"DTSTART:20260425T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T06:00:14.582400Z","last_run":"2026-04-25T19:00:17.387782Z","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":"2026-04-28T19:00:00Z","base_points":"10.0"},"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":90782,"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":"2024-01-13T19:00:20.474124Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2024-01-13T19:00:24.134089Z","ended":"2024-03-01T06:16:15.402016Z","start_waiting":"2024-01-13T19:00:23.500414Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png","player_count":9,"ranked":true},{"id":19996,"name":"Correspondence 19x19 RoundRobin 2016-08-21 01:00","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":6,"name":"Correspondence 19x19 RoundRobin","rrule":"DTSTART:20260424T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:58:31.027016Z","last_run":"2026-04-24T19:00:17.553063Z","lead_time_seconds":86400,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","size":19,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"pause_on_weekends":true,"max_time":432000,"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":"2026-04-27T19:00:00Z","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,"max_time":432000,"time_increment":86400},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2016-08-21T01:00:15.772870Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2016-08-21T01:00:44.623090Z","ended":"2017-02-14T23:47:46.668229Z","start_waiting":"2016-08-21T01:00:37.560244Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":10,"ranked":true},{"id":137735,"name":"13x13 Mini League 10k-25k #51","director":{"id":1688153,"username":"Mittelmark","country":"de","icon":"https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png","ratings":{"version":5,"overall":{"rating":1085.853799560171,"deviation":67.3768163524415,"volatility":0.060025167068784406}},"ranking":16.823651478136373,"professional":false,"ui_class":"supporter"},"description":"A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":93703,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":true,"time_increment":86400,"initial_time":432000,"max_time":1209600},"is_open":true,"exclude_provisional":true,"group":{"id":161,"name":"13x13","summary":"Like to play on a 13 x 13 board?","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":58,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg"},"auto_start_on_max":true,"time_start":"2026-03-06T22:00:00Z","players_start":5,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":20,"analysis_enabled":false,"exclusivity":"open","started":"2026-03-03T09:07:36.566439Z","ended":null,"start_waiting":"2026-03-03T09:07:36.349675Z","board_size":13,"active_round":1,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":5,"ranked":true},{"id":134998,"name":"Go's Got TALENT!","director":{"id":1733830,"username":"Mr. C. Cheese","country":"_CARICOM","icon":"https://user-uploads.online-go.com/5eba3c669a2a0ebd63bd82beb74da17a-64.png","ratings":{"version":5,"overall":{"rating":455.4656361578848,"deviation":66.55611487627914,"volatility":0.060043606952417665}},"ranking":5,"professional":false,"ui_class":""},"description":"May the best Go players BATTLE it out to see who wins!","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":40,"time_control_parameters":{"system":"simple","time_control":"simple","speed":"live","pause_on_weekends":false,"per_move":40},"is_open":true,"exclude_provisional":true,"group":{"id":13675,"name":"Sunday GO and MORE","summary":"You can't miss this group, join now!","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":110,"icon":"https://user-uploads.online-go.com/e9f20c25fe1d95f705ad61dc0bd03a5d-64.png"},"auto_start_on_max":false,"time_start":"2025-12-03T19:45:00Z","players_start":0,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2025-12-03T19:45:53.570603Z","ended":"2025-12-03T19:46:53.146354Z","start_waiting":"2025-12-03T19:45:53.547758Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/e9f20c25fe1d95f705ad61dc0bd03a5d-15.png","player_count":1,"ranked":true},{"id":125077,"name":"9x9 New Zealand 15k-1k League #18","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":"15k-1k. 5 players. Starts only when full.\n\nNew Zealand rules. 9x9 board. Even games. Round robin.\n\nFor more tournaments and ladders with New Zealand rules: <https://online-go.com/group/14024>","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"nz","time_per_move":95543,"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":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":80,"icon":"https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-64.png"},"auto_start_on_max":true,"time_start":"2025-03-04T04:10:00Z","players_start":5,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":15,"max_ranking":29,"analysis_enabled":true,"exclusivity":"open","started":"2025-02-27T22:23:30.146748Z","ended":"2025-04-06T19:15:32.378306Z","start_waiting":"2025-02-27T22:23:29.985357Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-15.png","player_count":5,"ranked":true}]}