{"count":59285,"next":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=4727","previous":"https://online-go.com/api/v1/tournaments?format=json&ordering=-subsequent_pairing_method&page=4725","results":[{"id":33481,"name":"Correspondence 13x13 RoundRobin 2018-01-08 01:00","director":{"id":4,"username":"matburt","country":"us","icon":"https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20260407T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T06:00:14.582400Z","last_run":"2026-04-07T19:00:21.261790Z","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":"2026-04-10T19:00:00Z","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":"2018-01-08T01:00:35.195320Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2018-01-08T01:01:16.401237Z","ended":"2018-02-03T22:57:55.199090Z","start_waiting":"2018-01-08T01:01:11.778353Z","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":100146,"name":"9x9 Mini League 1k-9k #63","director":{"id":1015644,"username":"wiadp1","country":"pl","icon":"https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png","ratings":{"version":5,"overall":{"rating":1357.1275499712074,"deviation":68.77351392070054,"volatility":0.06020343633999922}},"ranking":21.986189006954994,"professional":false,"ui_class":""},"description":"Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","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":3524,"name":"9x9 Lovers","summary":"A group for Go players who love the 9x9 board.","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":697,"icon":"https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"},"auto_start_on_max":true,"time_start":"2023-02-19T20:05:00Z","players_start":5,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":21,"max_ranking":29,"analysis_enabled":true,"exclusivity":"open","started":"2023-02-18T00:44:10.670109Z","ended":"2023-03-15T01:37:44.294452Z","start_waiting":"2023-02-18T00:44:10.471745Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png","player_count":5,"ranked":true},{"id":120935,"name":"Correspondence 19x19 RoundRobin 2024-10-08 19:00","director":{"id":4,"username":"matburt","country":"us","icon":"https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20260409T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:58:31.027016Z","last_run":"2026-04-09T19:00:34.669370Z","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":"2026-04-12T19:00:00Z","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":"2024-10-08T19:00:27.984723Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2024-10-08T19:00:30.499434Z","ended":"2024-12-18T09:05:05.315083Z","start_waiting":"2024-10-08T19:00:28.815250Z","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":96313,"name":"19x19 Double Elimination - Jan 2023","director":{"id":987760,"username":"deleted-f41b36e6-1556-4899-a775-dc2c1cd9ebb4","country":"ca","icon":"https://user-uploads.online-go.com/ec04439eea132df85e433a87c1f8a3c0-64.png","ratings":{"version":5,"overall":{"rating":2106.117124550817,"deviation":68.03535601314194,"volatility":0.05996971658182498}},"ranking":32.16005045129194,"professional":false,"ui_class":""},"description":"Monthly double elimination tournament - open to everyone.","schedule":null,"title":null,"tournament_type":"double_elimination","handicap":0,"rules":"japanese","time_per_move":89280,"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":1843,"name":"Open Study Room","summary":"Community of go players who play long serious games in leagues, study together, set up lectures.","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":1804,"icon":"https://user-uploads.online-go.com/8f94a8b09b47255de25f6e050f8928b4-64.png"},"auto_start_on_max":false,"time_start":"2023-01-01T22:00:00Z","players_start":4,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2023-01-01T22:00:54.684077Z","ended":"2025-08-15T10:55:17.536715Z","start_waiting":"2023-01-01T22:00:54.430109Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/8f94a8b09b47255de25f6e050f8928b4-15.png","player_count":17,"ranked":true},{"id":136735,"name":"19x19 Open League #119","director":{"id":1015644,"username":"wiadp1","country":"pl","icon":"https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png","ratings":{"version":5,"overall":{"rating":1357.1275499712074,"deviation":68.77351392070054,"volatility":0.06020343633999922}},"ranking":21.986189006954994,"professional":false,"ui_class":""},"description":"Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/12599","schedule":null,"title":null,"tournament_type":"roundrobin","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":70,"icon":"https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"},"auto_start_on_max":true,"time_start":"2026-02-01T22:00:00Z","players_start":10,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2026-01-31T17:43:17.033478Z","ended":null,"start_waiting":"2026-01-31T17:43:16.143329Z","board_size":19,"active_round":1,"icon":"https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png","player_count":10,"ranked":true},{"id":130779,"name":"Primus Inter Pares (First among equals) no. 8 (12 kyu only)","director":{"id":1218730,"username":"Petru Dumitriu","country":"ro","icon":"https://user-uploads.online-go.com/c234bf3d6aabfd36a9d9dd48123a71e5-64.png","ratings":{"version":5,"overall":{"rating":1119.9201484603784,"deviation":63.217535025595815,"volatility":0.05977419980379011}},"ranking":17.538773432651997,"professional":false,"ui_class":""},"description":"Based on previous positive experience you are kindly invited to a new original tournament open exclusively to 12 kyu players. \n\nIt is a real eye opener for players of our modest level.\n\n1. No more frustration to lose always to players much higher in ranks, without understanding why and without learning anything.\n\n2. No more boredom to win against players much lower in ranks, without satisfaction and without learning anything.\n\n3. No more endless tournaments where you forgot why you did the previous move and what objectives you had in mind.\n\nYou will enjoy tense and exciting games, open to any results, with satisfaction for achievements and learning from your mistakes.\n\nIf you do not believe me, ask players who played other Primus Inter Pares tournaments this year.","schedule":null,"title":null,"tournament_type":"roundrobin","handicap":0,"rules":"japanese","time_per_move":88451,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"correspondence","pause_on_weekends":false,"time_increment":86400,"initial_time":259200,"max_time":432000},"is_open":true,"exclude_provisional":true,"group":{"id":655,"name":"Romania","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":30,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg"},"auto_start_on_max":true,"time_start":"2025-08-10T16:00:00Z","players_start":10,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":18,"max_ranking":18,"analysis_enabled":true,"exclusivity":"open","started":"2025-07-30T16:14:10.495005Z","ended":"2025-11-20T19:06:43.806984Z","start_waiting":"2025-07-30T16:14:09.885337Z","board_size":19,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/default-group-v5.svg","player_count":10,"ranked":true},{"id":4753,"name":"Correspondence for beginners","director":{"id":121515,"username":"std","country":"br","icon":"https://user-uploads.online-go.com/18153d0817d60bf6ce6e91ca24eb76b5-64.png","ratings":{"version":5,"overall":{"rating":1613.7606810632417,"deviation":71.37611978860429,"volatility":0.05998083278485402}},"ranking":25.995697506378217,"professional":false,"ui_class":""},"description":"Let us get together for some correspondence games?\nThis is a chance to get to know how it works!\nEveryone is welcome!","schedule":null,"title":null,"tournament_type":"mcmahon","handicap":0,"rules":"japanese","time_per_move":89280,"time_control_parameters":{"time_control":"fischer","initial_time":259200,"max_time":604800,"time_increment":86400},"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":8866,"icon":"https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"},"auto_start_on_max":true,"time_start":"2015-02-06T17:04:00Z","players_start":5,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":false,"exclusivity":"open","started":"2015-02-06T17:04:37.580000Z","ended":"2018-03-19T21:03:27.724181Z","start_waiting":"2015-02-06T17:04:37.509149Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png","player_count":6,"ranked":true},{"id":121537,"name":"Librety Tour","director":{"id":1643413,"username":"Nadiyar","country":"_LGBT","icon":"https://user-uploads.online-go.com/682eb180a7815686f40a2f85af5f0383-64.png","ratings":{"version":5,"overall":{"rating":679.4309400360154,"deviation":69.11234390592936,"volatility":0.0600446855956784}},"ranking":5.969397243519584,"professional":false,"ui_class":""},"description":"آغازین","schedule":null,"title":null,"tournament_type":"mcmahon","handicap":0,"rules":"japanese","time_per_move":41,"time_control_parameters":{"system":"fischer","time_control":"fischer","speed":"live","pause_on_weekends":false,"time_increment":30,"initial_time":300,"max_time":300},"is_open":true,"exclude_provisional":true,"group":{"id":14738,"name":"گو میدانی","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":5,"icon":"https://user-uploads.online-go.com/44f3a49ef7d11e544cb25b2486567fdc-64.png"},"auto_start_on_max":true,"time_start":"2024-10-26T22:30:00Z","players_start":2,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":5,"max_ranking":38,"analysis_enabled":true,"exclusivity":"open","started":"2025-08-15T03:08:05.743712Z","ended":"2025-08-15T03:08:19.697748Z","start_waiting":"2025-08-15T03:08:05.686318Z","board_size":9,"active_round":null,"icon":"https://user-uploads.online-go.com/44f3a49ef7d11e544cb25b2486567fdc-15.png","player_count":2,"ranked":true},{"id":100147,"name":"Let's Go! 🙂  Round Robin 3kyu-8kyu","director":{"id":699769,"username":"jeroentjeb","country":"ca","icon":"https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png","ratings":{"version":5,"overall":{"rating":1512.9243158950562,"deviation":68.89994703463896,"volatility":0.06009756152739938}},"ranking":24.50199304440935,"professional":false,"ui_class":"supporter"},"description":"Let's Go! 🙂 Round Robin 3kyu-8kyu","schedule":null,"title":null,"tournament_type":"roundrobin","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":6630,"name":"Go friends 🐬","summary":"","require_invitation":false,"is_public":true,"admin_only_tournaments":false,"hide_details":false,"member_count":361,"icon":"https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-64.png"},"auto_start_on_max":false,"time_start":"2023-02-22T19:00:00Z","players_start":9,"first_pairing_method":"slide","subsequent_pairing_method":"slaughter","min_ranking":22,"max_ranking":27,"analysis_enabled":true,"exclusivity":"open","started":"2023-02-27T08:14:44.798271Z","ended":"2023-05-26T05:04:23.237743Z","start_waiting":"2023-02-27T08:14:44.451030Z","board_size":19,"active_round":null,"icon":"https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png","player_count":8,"ranked":true},{"id":33510,"name":"Correspondence 9x9 RoundRobin 2018-01-09 01:00","director":{"id":4,"username":"matburt","country":"us","icon":"https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20260408T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3","active":true,"created":"2015-02-20T05:56:18.340749Z","last_run":"2026-04-08T19:00:04.658730Z","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":"2026-04-11T19:00:00Z","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":"2018-01-09T01:00:53.397817Z","players_start":4,"first_pairing_method":"slaughter","subsequent_pairing_method":"slaughter","min_ranking":0,"max_ranking":36,"analysis_enabled":true,"exclusivity":"open","started":"2018-01-09T01:01:29.923280Z","ended":"2018-01-25T21:06:24.098656Z","start_waiting":"2018-01-09T01:01:27.590332Z","board_size":9,"active_round":null,"icon":"https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png","player_count":6,"ranked":true}]}