Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=1890
{ "count": 60948, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=1891", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=1889", "results": [ { "id": 1152, "name": "the birthdays are over!", "director": { "id": 913, "username": "orbitaleccentric", "country": "154", "icon": "https://secure.gravatar.com/avatar/53eeecc069afe75227d01613021745ee?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1186.8298822049255, "deviation": 66.56973479895018, "volatility": 0.058733861384454335 } }, "ranking": 18.88213091983084, "professional": false, "ui_class": "supporter" }, "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": 386, "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": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2010-08-25T07:53:26Z", "ended": "2010-08-25T05:53:26Z", "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": 138758, "name": "Live 19x19 Swiss Tournament 2026-03-29 12:30", "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 Site-wide Tournament", "schedule": { "id": 4, "name": "Live 19x19 Swiss Tournament", "rrule": "DTSTART:20260906T040000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-09-06T04:00:33.140160Z", "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": "2026-09-06T08:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 35, "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": "2026-03-29T12:30:10.598042Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2026-03-29T12:31:10.978679Z", "ended": "2026-03-29T13:20:45.246904Z", "start_waiting": "2026-03-29T12:31:10.606749Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true }, { "id": 138507, "name": "Handicap Arena 2026 - 025", "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 - 2026. 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": "2026-03-25T09:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-03-24T16:30:43.188277Z", "ended": null, "start_waiting": "2026-03-24T16:30:42.249815Z", "board_size": 19, "active_round": 1, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png", "player_count": 10, "ranked": true }, { "id": 35, "name": "Inaugural Reddit Fast Correspondence Swiss", "director": { "id": 73, "username": "Kuroneko", "country": "001", "icon": "https://user-uploads.online-go.com/8acc1aa7edbb99556a0d05cf6c97a154-64.png", "ratings": { "version": 5, "overall": { "rating": 1720.3171984281491, "deviation": 260.4887625445967, "volatility": 0.05999892180617455 } }, "ranking": 27.47594113797314, "professional": false, "ui_class": "provisional" }, "description": "This is going to be a relatively fast Swiss correspondence tournament. Starting Saturday October 5th", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 21600, "time_control_parameters": { "time_control": "fischer", "initial_time": 86400, "max_time": 86400, "time_increment": 21600 }, "is_open": true, "exclude_provisional": false, "group": { "id": 38, "name": "reddit", "summary": "/r/baduk", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 2290, "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-64.png" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2013-10-05T19:54:33.763960Z", "ended": "2014-04-08T20:55:11.572229Z", "start_waiting": null, "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-15.png", "player_count": 0, "ranked": true }, { "id": 1168, "name": "Beginner's- 19x19 MiniTounament", "director": { "id": 32288, "username": "LeeMorikawa", "country": "us", "icon": "https://secure.gravatar.com/avatar/54c732f3d2a5ee4ddefd369b9ac7af4b?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1499.8684911928542, "deviation": 64.49933077667654, "volatility": 0.05998095533514081 } }, "ranking": 24.3013524739113, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 172800, "time_control_parameters": { "time_control": "fischer", "initial_time": 432000, "max_time": 432000, "time_increment": 172800 }, "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": 386, "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": 5, "analysis_enabled": false, "exclusivity": "open", "started": "2010-10-10T04:58:44Z", "ended": "2010-10-10T02:58:44Z", "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": 1167, "name": "Three Pints and a Tablecloth", "director": { "id": 31091, "username": "panceramik", "country": "pl", "icon": "https://secure.gravatar.com/avatar/a383782ed2658764626b7be4570bcaae?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1527.9691347552402, "deviation": 64.44729492745931, "volatility": 0.05994271037654737 } }, "ranking": 24.73106414083065, "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": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "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": 386, "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": 19, "analysis_enabled": false, "exclusivity": "open", "started": "2011-02-03T15:22:52Z", "ended": "2011-02-03T14:22:52Z", "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": 130951, "name": "Blitz 19x19 Elimination Tournament 2025-07-30 13:30", "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 Site-wide Tournament", "schedule": { "id": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260906T050000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-09-06T05:00:33.006465Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-09-06T09:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2025-07-30T13:30:53.345118Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2025-07-30T13:31:53.410984Z", "ended": "2025-07-30T14:21:19.795015Z", "start_waiting": "2025-07-30T13:31:53.336334Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true }, { "id": 1165, "name": "uzumakiyuubi's 1st mini-tournament", "director": { "id": 32082, "username": "uzumakiyuubi", "country": "un", "icon": "https://secure.gravatar.com/avatar/3e9991212f8ff3bd83b1c540f84a7bd7?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1002.6732841716353, "deviation": 92.73307800481096, "volatility": 0.060002558304506154 } }, "ranking": 14.978668885003112, "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": true, "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": 386, "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": 17, "analysis_enabled": false, "exclusivity": "open", "started": "2010-07-26T20:34:44Z", "ended": "2010-07-26T18:34:44Z", "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": 18317, "name": "Insei League tourney #1", "director": { "id": 232777, "username": "Jwill1997", "country": "us", "icon": "https://user-uploads.online-go.com/cd36ab2be2837560652b5262a0b1fb4e-64.png", "ratings": { "version": 5, "overall": { "rating": 1085.8400724391543, "deviation": 63.31326327532737, "volatility": 0.060025452972206135 } }, "ranking": 16.823358819161147, "professional": false, "ui_class": "" }, "description": "Something to do before 3 season", "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": 931, "name": "Rising Stars Academy", "summary": "Provide a different sort of league not find anywhere else online", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 121, "icon": "https://user-uploads.online-go.com/fa46749efc6ccba4e20e1c28910f57ed-64.png" }, "auto_start_on_max": true, "time_start": "2016-07-02T04:43:00Z", "players_start": 10, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-07-02T04:43:16.990666Z", "ended": "2017-10-08T20:08:33.176148Z", "start_waiting": "2016-07-02T04:43:16.507160Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/fa46749efc6ccba4e20e1c28910f57ed-15.png", "player_count": 26, "ranked": true }, { "id": 1163, "name": "A B C", "director": { "id": 18317, "username": "Koworu", "country": "un", "icon": "https://secure.gravatar.com/avatar/fc50c6bedbf20e687f14e33c1ed34eb0?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1751.1741032696373, "deviation": 63.61724873998119, "volatility": 0.059966677759709666 } }, "ranking": 27.88749692120436, "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": true, "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": 386, "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": 17, "max_ranking": 23, "analysis_enabled": false, "exclusivity": "open", "started": "2010-11-21T19:57:53Z", "ended": "2010-11-21T18:57:53Z", "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 } ] }
