Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5112
{ "count": 60946, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5113", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=5111", "results": [ { "id": 67935, "name": "Go GryphONS", "director": { "id": 666747, "username": "JamieT", "country": "un", "icon": "https://user-uploads.online-go.com/0c91c820a39f2b21ef13babc3532fa8a-64.png", "ratings": { "version": 5, "overall": { "rating": 1507.300336819689, "deviation": 65.33806251114896, "volatility": 0.05989566544152926 } }, "ranking": 24.415777427329825, "professional": false, "ui_class": "" }, "description": "wqesqasQWADS", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "aga", "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": false, "group": { "id": 6878, "name": "GH Go Club", "summary": "Welcome to the GH Go Club! \n\nCheck out our complete guide to the game at https://docs.google.com/document/d/1oUztveF3B-u6Vq_2YtkPusHVzhzn4LOJB6ug9GdGjjs/edit.", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 20, "icon": "https://user-uploads.online-go.com/a59f80a1dd78e8c1307e14cc627732db-64.png" }, "auto_start_on_max": false, "time_start": "2020-11-17T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-11-17T16:23:40.864639Z", "ended": "2020-12-01T16:37:58.267073Z", "start_waiting": "2020-11-17T16:23:40.628098Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/a59f80a1dd78e8c1307e14cc627732db-15.png", "player_count": 5, "ranked": true }, { "id": 106620, "name": "Correspondence 9x9 RoundRobin 2023-08-20 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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260905T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-09-05T19:00:32.954088Z", "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": "2026-09-08T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "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": "2023-08-20T19:00:29.905371Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2023-08-20T19:00:30.308214Z", "ended": "2023-10-03T13:15:32.169786Z", "start_waiting": "2023-08-20T19:00:30.096699Z", "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 }, { "id": 138842, "name": "春らんまん囲碁大会2026", "director": { "id": 788184, "username": "f_uenoyama", "country": "jp", "icon": "https://secure.gravatar.com/avatar/acdee1cb9e308c99bb0cfbf83b3108ed?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1875.5999347453533, "deviation": 65.22182925825257, "volatility": 0.060072651200657114 } }, "ranking": 29.47656140462149, "professional": false, "ui_class": "" }, "description": "春の明るい空気の中で、心地よい対局を楽しみましょう。", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 623947, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 604800, "initial_time": 2419200, "max_time": 2419200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5915, "name": "Web烏鷺の会", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 10, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2026-04-10T00:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2026-04-10T00:00:34.061667Z", "ended": "2026-04-21T12:47:09.843426Z", "start_waiting": "2026-04-10T00:00:33.332599Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 134535, "name": "9x9 Mini League 10k-25k #343", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1369.7563886518221, "deviation": 73.23899345455979, "volatility": 0.06029554692293308 } }, "ranking": 22.200616692370286, "professional": false, "ui_class": "" }, "description": "Special league for players between 25kyu and 10kyu. 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": 715, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2025-11-23T20:05:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2025-11-22T16:18:09.875962Z", "ended": "2025-12-19T23:49:54.958170Z", "start_waiting": "2025-11-22T16:18:09.582659Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 107108, "name": "Europe Go #2", "director": { "id": 1182846, "username": "Smartfox", "country": "un", "icon": "https://user-uploads.online-go.com/27e2cbb60e6e5017971b0a1e7392ce05-64.png", "ratings": { "version": 5, "overall": { "rating": 1440.2563930454246, "deviation": 71.61347756222665, "volatility": 0.060512765640676876 } }, "ranking": 23.36247451639933, "professional": false, "ui_class": "" }, "description": "Have fun", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 259200, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": true, "per_move": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 13537, "name": "Europe Go", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 10, "icon": "https://user-uploads.online-go.com/992d9f34129e2d028bc7b7c8a910e8b5-64.png" }, "auto_start_on_max": false, "time_start": "2023-09-16T18:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-16T18:00:57.289850Z", "ended": "2023-12-01T20:51:11.991275Z", "start_waiting": "2023-09-16T18:00:57.136689Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/992d9f34129e2d028bc7b7c8a910e8b5-15.png", "player_count": 8, "ranked": true }, { "id": 63936, "name": "Cookie Challenge 13x13", "director": { "id": 758558, "username": "starkowl", "country": "us", "icon": "https://user-uploads.online-go.com/9dc4ff7e170f16cfa48c9790b2a00229-64.png", "ratings": { "version": 5, "overall": { "rating": 1051.7443364816368, "deviation": 64.42461403701424, "volatility": 0.05994928223321713 } }, "ranking": 16.08478378653357, "professional": false, "ui_class": "" }, "description": "Let's try a 13x13 tournement", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 631680, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 604800, "initial_time": 2419200, "max_time": 2419200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 6248, "name": "Go Cookies!", "summary": "The Go branch of the Cookies club. Other branches include Chess Cookies!", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 4, "icon": "https://user-uploads.online-go.com/64912bd9b9f46f16b8668a959cfd1933-64.png" }, "auto_start_on_max": false, "time_start": "2020-08-08T20:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-08-09T00:20:40.656387Z", "ended": "2021-01-27T12:41:56.777785Z", "start_waiting": "2020-08-09T00:20:40.322213Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/64912bd9b9f46f16b8668a959cfd1933-15.png", "player_count": 4, "ranked": true }, { "id": 125251, "name": "Handicap Arena 2025 - 011", "director": { "id": 526987, "username": "Gia", "country": "gr", "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png", "ratings": { "version": 5, "overall": { "rating": 1096.7419281160237, "deviation": 65.33023419517026, "volatility": 0.0600625524550506 } }, "ranking": 17.05462624258694, "professional": false, "ui_class": "" }, "description": "Part of an arena tournament - 2025. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as it is full (10 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": 108, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png" }, "auto_start_on_max": true, "time_start": "2025-02-16T13:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-02-15T19:18:33.604810Z", "ended": "2025-07-27T06:33:20.946372Z", "start_waiting": "2025-02-15T19:18:33.019946Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png", "player_count": 10, "ranked": true }, { "id": 66503, "name": "Correspondence 19x19 RoundRobin 2020-10-11 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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260903T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-09-03T19:00:32.804742Z", "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": "2026-09-06T19:00:00Z", "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": "2020-10-11T19:00:03.867549Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2020-10-11T19:00:10.894697Z", "ended": "2020-12-21T07:42:41.450938Z", "start_waiting": "2020-10-11T19:00:08.968120Z", "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": 30289, "name": "Correspondence 13x13 RoundRobin 2017-09-16 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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260904T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-09-04T19:00:33.337379Z", "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": "2026-09-07T19:00:00Z", "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": "2017-09-16T01:00:50.290459Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2017-09-16T01:01:16.823605Z", "ended": "2017-10-27T06:05:29.504379Z", "start_waiting": "2017-09-16T01:01:13.970425Z", "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": 106396, "name": "13/8 練習賽", "director": { "id": 732914, "username": "Myosu", "country": "hk", "icon": "https://user-uploads.online-go.com/3e8044bfa5bfb2689285ad63b474e524-64.png", "ratings": { "version": 5, "overall": { "rating": 2216.1194440671634, "deviation": 71.86629998446274, "volatility": 0.06019266480191935 } }, "ranking": 33.338654947917895, "professional": false, "ui_class": "" }, "description": "13/8 練習賽", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": -1, "rules": "japanese", "time_per_move": 20, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 0, "period_time": 20, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": { "id": 10046, "name": "Hiroki’s Group", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 4, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2023-08-13T12:10:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-08-13T12:10:55.515828Z", "ended": "2023-08-13T12:21:58.047749Z", "start_waiting": "2023-08-13T12:10:55.447374Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 5, "ranked": true } ] }
