{"count":60073,"next":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=251","previous":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=249","results":[{"id":2020,"name":"Halloween tournament","director":{"id":41480,"username":"Johnny5","country":"us","icon":"https://secure.gravatar.com/avatar/1a85aec7e9c1536e1f9c1280eb086549?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1251.4825701429302,"deviation":62.94811376537434,"volatility":0.06003877222669031}},"ranking":20.110079071385503,"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":345600,"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":385,"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":9,"analysis_enabled":false,"exclusivity":"open","started":"2013-04-19T14:26:53Z","ended":"2013-04-19T12:26:53Z","start_waiting":null,"board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":0,"ranked":true},{"id":2019,"name":"oppala's mini-tournament","director":{"id":42206,"username":"oppala","country":"un","icon":"https://secure.gravatar.com/avatar/62949ffe863d96e598168cc3125ee5a0?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1729.1999410919664,"deviation":63.633997904127234,"volatility":0.05996400647515056}},"ranking":27.59516706953017,"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":385,"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":9,"max_ranking":36,"analysis_enabled":false,"exclusivity":"open","started":"2012-12-15T22:52:36Z","ended":"2012-12-15T21:52:36Z","start_waiting":null,"board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":0,"ranked":true},{"id":2018,"name":"selbstlaut's mini-tournament","director":{"id":883,"username":"selbstlaut","country":"un","icon":"https://secure.gravatar.com/avatar/54b69e1ce84e7c2a03ab2c62d61867d6?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1546.1174976707032,"deviation":63.344458756574205,"volatility":0.05992578573870598}},"ranking":25.004406783927063,"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":385,"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":8,"analysis_enabled":false,"exclusivity":"open","started":"2012-12-17T08:30:34Z","ended":"2012-12-17T07:30:34Z","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":133615,"name":"Bot test 2","director":{"id":1385471,"username":"changcheng6541","country":"cn","icon":"https://user-uploads.online-go.com/1227b6b65ee93a963ef1738884fa8c8e-64.png","ratings":{"version":5,"overall":{"rating":1106.178593637233,"deviation":86.05012077415248,"volatility":0.06004438086150537}},"ranking":17.252963078549588,"professional":false,"ui_class":""},"description":"IKkalas","schedule":null,"title":null,"tournament_type":"swiss","handicap":0,"rules":"chinese","time_per_move":35,"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":false,"group":{"id":12594,"name":"Doulet Media","summary":"This is one of the Bot that allows Bots and welcome Bots because we developed bots and test them in here. Feel free to challenge Kata_web, our newest AI and welcome to join our ladders and tournaments and they all allow bots. -changcheng6541/Doulet Media","require_invitation":false,"is_public":true,"admin_only_tournaments":true,"hide_details":false,"member_count":1939,"icon":"https://user-uploads.online-go.com/d54616909c95182263b73a78d32b9412-64.png"},"auto_start_on_max":false,"time_start":"2025-10-21T16:20:00Z","players_start":2,"first_pairing_method":"slide","subsequent_pairing_method":"strength","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2025-10-21T16:20:41.975590Z","ended":"2025-10-21T16:51:45.936109Z","start_waiting":"2025-10-21T16:20:41.912494Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/d54616909c95182263b73a78d32b9412-15.png","player_count":3,"ranked":true},{"id":15394,"name":"Live 19x19 Swiss Tournament 2016-03-02 20:30","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":4,"name":"Live 19x19 Swiss Tournament","rrule":"DTSTART:20260628T080000Z\nRRULE:FREQ=HOURLY;INTERVAL=4","active":true,"created":"2014-12-20T06:30:39.250689Z","last_run":"2026-06-28T08:00:16.776224Z","lead_time_seconds":1800,"tournament_type":"swiss","handicap":0,"rules":"japanese","size":19,"time_control_parameters":{"time_control":"byoyomi","period_time":30,"main_time":600,"periods":3},"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":"2026-06-28T12:00:00Z","base_points":"10.0"},"title":null,"tournament_type":"swiss","handicap":0,"rules":"japanese","time_per_move":36,"time_control_parameters":{"time_control":"byoyomi","period_time":30,"main_time":600,"periods":3},"is_open":true,"exclude_provisional":true,"group":null,"auto_start_on_max":false,"time_start":"2016-03-02T20:30:48.963568Z","players_start":6,"first_pairing_method":"random","subsequent_pairing_method":"strength","min_ranking":0,"max_ranking":36,"analysis_enabled":false,"exclusivity":"open","started":"2016-03-02T20:30:50.822260Z","ended":"2016-03-02T22:13:13.237955Z","start_waiting":"2016-03-02T20:30:50.422785Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png","player_count":8,"ranked":true},{"id":35028,"name":"Blitz 13x13 Swiss Tournament 2018-03-02 03:30","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:20260628T070000Z\nRRULE:FREQ=HOURLY;INTERVAL=4","active":true,"created":"2014-12-20T06:27:45.234995Z","last_run":"2026-06-28T07:00:16.770618Z","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":"2026-06-28T11:00:00Z","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":"2018-03-02T03:30:00.694777Z","players_start":6,"first_pairing_method":"random","subsequent_pairing_method":"strength","min_ranking":0,"max_ranking":36,"analysis_enabled":false,"exclusivity":"open","started":"2018-03-02T03:30:03.197676Z","ended":"2018-03-02T04:27:05.277344Z","start_waiting":"2018-03-02T03:30:02.549971Z","board_size":13,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png","player_count":7,"ranked":true},{"id":69048,"name":"12月17日 石鐘山圍棋課","director":{"id":882228,"username":"傳碁學園-學校","country":"un","icon":"https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png","ratings":{"version":5,"overall":{"rating":2016.3242760584894,"deviation":321.66454188869955,"volatility":0.06000670794039896}},"ranking":31.15140869306353,"professional":false,"ui_class":"provisional"},"description":"12月17日 石鐘山圍棋課","schedule":null,"title":null,"tournament_type":"swiss","handicap":0,"rules":"japanese","time_per_move":3,"time_control_parameters":{"system":"absolute","time_control":"absolute","speed":"blitz","pause_on_weekends":false,"total_time":300},"is_open":true,"exclude_provisional":false,"group":{"id":7434,"name":"石鐘山圍棋課","summary":"","require_invitation":false,"is_public":false,"admin_only_tournaments":false,"hide_details":true,"member_count":21,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg"},"auto_start_on_max":true,"time_start":"2020-12-17T07:20:00Z","players_start":4,"first_pairing_method":"strength","subsequent_pairing_method":"strength","min_ranking":5,"max_ranking":38,"analysis_enabled":false,"exclusivity":"group","started":"2020-12-17T07:11:00.343988Z","ended":"2020-12-17T07:47:05.775173Z","start_waiting":"2020-12-17T07:11:00.043719Z","board_size":9,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":16,"ranked":true},{"id":2037,"name":"deguoren's mini-tournament","director":{"id":28523,"username":"deguoren","country":"un","icon":"https://secure.gravatar.com/avatar/fbc98d14f3310062834ec116a9a07683?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1827.82236601581,"deviation":64.91225772635146,"volatility":0.06003268193684833}},"ranking":28.879215493835027,"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":385,"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":14,"max_ranking":23,"analysis_enabled":false,"exclusivity":"open","started":"2013-07-05T06:20:44Z","ended":"2013-07-05T04:20:44Z","start_waiting":null,"board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":0,"ranked":true},{"id":2036,"name":"Newbigin's mini-midfield","director":{"id":46626,"username":"Newbigin","country":"de","icon":"https://secure.gravatar.com/avatar/d505645a381616621508f882b66093c6?s=64&d=retro","ratings":{"version":5,"overall":{"rating":1426.858898192516,"deviation":67.27697327021836,"volatility":0.05999433959825994}},"ranking":23.146121679643088,"professional":false,"ui_class":""},"description":"","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"chinese","time_per_move":86400,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"max_time":432000,"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":385,"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":3,"max_ranking":15,"analysis_enabled":false,"exclusivity":"open","started":"2012-11-30T08:28:59Z","ended":"2012-11-30T07:28:59Z","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":71802,"name":"🎇19x19 1d - 9d+ players Friendly Match🎇 2.0","director":{"id":770016,"username":"Patience_Tester","country":"gb","icon":"https://user-uploads.online-go.com/a285eebd12660e20df271f390b0dcdf9-64.png","ratings":{"version":5,"overall":{"rating":1690.6877553839624,"deviation":65.42650983750526,"volatility":0.06001456311821626}},"ranking":27.073749485726683,"professional":false,"ui_class":""},"description":"1. Competition for 1d - 9d+\n2. 19x19\n3. 5 - 30 players\n4. Double elimination\n5. Stop counting time at weekends\n6. Start on 1st April 2021\n7. 10 days per a move","schedule":null,"title":null,"tournament_type":"double_elimination","handicap":0,"rules":"japanese","time_per_move":864000,"time_control_parameters":{"system":"simple","time_control":"simple","speed":"correspondence","pause_on_weekends":true,"per_move":864000},"is_open":true,"exclude_provisional":true,"group":{"id":6273,"name":"19x19 Players","summary":"19x19 enthusiasts","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":365,"icon":"https://user-uploads.online-go.com/fd93c5b84e277ce846851c8b71ec9778-64.png"},"auto_start_on_max":false,"time_start":"2021-04-01T14:00:00Z","players_start":5,"first_pairing_method":"strength","subsequent_pairing_method":"strength","min_ranking":30,"max_ranking":38,"analysis_enabled":false,"exclusivity":"open","started":"2021-04-01T14:00:20.323569Z","ended":null,"start_waiting":"2021-04-01T14:00:19.207648Z","board_size":19,"active_round":7,"icon":"https://user-uploads.online-go.com/fd93c5b84e277ce846851c8b71ec9778-15.png","player_count":40,"ranked":true}]}