{"count":60918,"next":"https://online-go.com/api/v1/tournaments/?format=json&ordering=subsequent_pairing_method&page=1790","previous":"https://online-go.com/api/v1/tournaments/?format=json&ordering=subsequent_pairing_method&page=1788","results":[{"id":43228,"name":"Ratio Cup Qualification (Blitz Section): Group A","director":{"id":153455,"username":"El0m","country":"gb","icon":"https://user-uploads.online-go.com/018b099d6b5f111ad780b468738dc998-64.png","ratings":{"version":5,"overall":{"rating":1295.7038814112566,"deviation":70.83331711939027,"volatility":0.0603648964543371}},"ranking":20.913967003155264,"professional":false,"ui_class":""},"description":"Choose one group...","schedule":null,"title":null,"tournament_type":"swiss","handicap":0,"rules":"aga","time_per_move":777600,"time_control_parameters":{"period_time":777600,"main_time":0,"system":"byoyomi","pause_on_weekends":true,"time_control":"byoyomi","periods":9,"speed":"correspondence"},"is_open":true,"exclude_provisional":false,"group":{"id":1398,"name":"Ratio","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":false,"time_start":"2019-01-01T00:00:00Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2019-01-01T00:00:17.684093Z","ended":"2019-07-31T15:28:32.684530Z","start_waiting":"2019-01-01T00:00:17.029142Z","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":39866,"name":"Correspondence 19x19 RoundRobin 2018-08-11 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:20260831T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:58:31.027016Z","last_run":"2026-08-31T19:00:32.133942Z","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":"2026-09-03T19:00:00Z","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":432000,"time_increment":86400},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2018-08-11T01:00:40.095148Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2018-08-11T01:01:06.134906Z","ended":"2019-01-05T02:01:10.533914Z","start_waiting":"2018-08-11T01:01:03.565128Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":9,"ranked":true},{"id":43430,"name":"Iron Man 2","director":{"id":539756,"username":"Wookierama","country":"au","icon":"https://user-uploads.online-go.com/3dc6687d3020dc2be81452121183775d-64.png","ratings":{"version":5,"overall":{"rating":1234.4747839350389,"deviation":73.4057542344692,"volatility":0.060000431856436276}},"ranking":19.793310649502917,"professional":false,"ui_class":""},"description":"Double elimination tournament.","schedule":null,"title":null,"tournament_type":"double_elimination","handicap":0,"rules":"japanese","time_per_move":89280,"time_control_parameters":{"system":"fischer","pause_on_weekends":false,"time_control":"fischer","initial_time":259200,"max_time":604800,"time_increment":86400,"speed":"correspondence"},"is_open":true,"exclude_provisional":false,"group":{"id":2721,"name":"SHIELD","summary":"","require_invitation":false,"is_public":false,"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":false,"time_start":"2018-12-10T11:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":false,"exclusivity":"group","started":"2018-12-10T11:00:39.452695Z","ended":"2019-03-05T09:55:23.770223Z","start_waiting":"2018-12-10T11:00:38.733335Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":5,"ranked":true},{"id":59022,"name":"9x9 t","director":{"id":75675,"username":"flexo37","country":"gb","icon":"https://user-uploads.online-go.com/aed35fddbbab02a96f4cd51229121646-64.png","ratings":{"version":5,"overall":{"rating":1378.2599959226188,"deviation":61.523228678335585,"volatility":0.06004894018445808}},"ranking":22.343890318958714,"professional":false,"ui_class":"supporter"},"description":"9ix9 tournmeyt","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":32,"time_control_parameters":{"system":"byoyomi","time_control":"byoyomi","speed":"live","pause_on_weekends":false,"main_time":240,"period_time":30,"periods":5},"is_open":true,"exclude_provisional":false,"group":{"id":259,"name":"Brighton Go Club","summary":"Group for anyone who plays Go in Brighton, UK","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":43,"icon":"https://user-uploads.online-go.com/0fd5879c92ead717621f44b2844bc9c8-64.png"},"auto_start_on_max":false,"time_start":"2020-04-14T20:00:00Z","players_start":3,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"group","started":"2020-04-14T19:56:04.378728Z","ended":"2020-04-14T20:09:13.012799Z","start_waiting":"2020-04-14T19:56:03.528136Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/0fd5879c92ead717621f44b2844bc9c8-15.png","player_count":4,"ranked":true},{"id":44427,"name":"Fast Correspondence – January 2019 (D)","director":{"id":784,"username":"mlopezviedma","country":"ar","icon":"https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png","ratings":{"version":5,"overall":{"rating":1558.7681484843145,"deviation":62.264303238944116,"volatility":0.05973863153844848}},"ranking":25.193054109678815,"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":831,"icon":"https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"},"auto_start_on_max":false,"time_start":"2019-01-13T00:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":false,"exclusivity":"open","started":"2019-01-13T00:00:49.508500Z","ended":"2019-02-24T19:16:34.222785Z","start_waiting":"2019-01-13T00:00:46.018151Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png","player_count":10,"ranked":true},{"id":44564,"name":"Correspondence 13x13 RoundRobin 2019-01-12 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:20260901T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T06:00:14.582400Z","last_run":"2026-09-01T19:00:32.573058Z","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":"2026-09-04T19:00:00Z","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":"2019-01-12T19:00:55.308403Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2019-01-12T19:01:26.855661Z","ended":"2019-03-16T23:13:40.986766Z","start_waiting":"2019-01-12T19:01:26.496311Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png","player_count":4,"ranked":true},{"id":47530,"name":"DDK.NL Go Club - Full Moon Tournament #6","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":"Monthly Round Robin tournament","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":89280,"time_control_parameters":{"system":"fischer","time_control":"fischer","initial_time":259200,"max_time":604800,"time_increment":86400,"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":false,"time_start":"2019-04-19T11:12:00Z","players_start":6,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":20,"analysis_enabled":true,"exclusivity":"open","started":"2019-04-19T12:00:02.289495Z","ended":"2019-07-01T13:37:59.587457Z","start_waiting":"2019-04-19T12:00:01.422561Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-15.png","player_count":5,"ranked":true},{"id":44665,"name":"End of Semester Tournament","director":{"id":606689,"username":"yuvalalternate","country":"un","icon":"https://secure.gravatar.com/avatar/a3ec0bb3ac1295ab9105b6fefd4b02d5?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1500,"deviation":350,"volatility":0.06}},"ranking":24.303382182144386,"professional":false,"ui_class":"provisional"},"description":"The final solution","schedule":null,"title":null,"tournament_type":"swiss","handicap":0,"rules":"japanese","time_per_move":107,"time_control_parameters":{"system":"fischer","pause_on_weekends":false,"time_control":"fischer","initial_time":240,"max_time":900,"time_increment":105,"speed":"live"},"is_open":true,"exclude_provisional":true,"group":{"id":3046,"name":"Speyer Go","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":true,"member_count":15,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg"},"auto_start_on_max":false,"time_start":"2019-01-14T20:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2019-01-14T20:00:48.713081Z","ended":"2019-01-16T20:21:57.232119Z","start_waiting":"2019-01-14T20:00:48.036169Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":6,"ranked":true},{"id":48450,"name":"Correspondence 9x9 RoundRobin 2019-05-16 20:07","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":5,"name":"Correspondence 9x9 RoundRobin","rrule":"DTSTART:20260902T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:56:18.340749Z","last_run":"2026-09-02T19:00:32.461350Z","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":"2026-09-05T19:00:00Z","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":"2019-05-16T20:07:11.874297Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2019-05-16T20:07:31.703231Z","ended":"2019-06-08T13:58:25.548002Z","start_waiting":"2019-05-16T20:07:30.966406Z","board_size":9,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png","player_count":5,"ranked":true},{"id":45527,"name":"Correspondence 13x13 RoundRobin 2019-02-11 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:20260901T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T06:00:14.582400Z","last_run":"2026-09-01T19:00:32.573058Z","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":"2026-09-04T19:00:00Z","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":"2019-02-11T19:00:50.267844Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2019-02-11T19:01:18.171547Z","ended":"2019-04-04T14:49:36.441294Z","start_waiting":"2019-02-11T19:01:16.361357Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png","player_count":8,"ranked":true}]}