Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-board_size&page=1043
{ "count": 60474, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=1044", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=1042", "results": [ { "id": 8629, "name": "SA Closed 2015 Candidates Day 2", "director": { "id": 703, "username": "komi", "country": "za", "icon": "https://secure.gravatar.com/avatar/63e105e892884a412104a76b92d102f2?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1988.7230631068428, "deviation": 67.38050251674501, "volatility": 0.05993999441470615 } }, "ranking": 30.83232222952034, "professional": false, "ui_class": "" }, "description": "SA Closed 2015 Candidates Day 2", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 64, "time_control_parameters": { "time_control": "canadian", "period_time": 600, "main_time": 3600, "stones_per_period": 25 }, "is_open": true, "exclude_provisional": false, "group": { "id": 33, "name": "South African Group", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 167, "icon": "https://user-uploads.online-go.com/a4b7f5e1250042807f5a4cefeaad5dea-64.png" }, "auto_start_on_max": false, "time_start": "2015-06-28T08:00:00Z", "players_start": 8, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "invite", "started": "2015-06-28T19:24:04.231467Z", "ended": "2015-06-28T19:24:04.217566Z", "start_waiting": "2015-06-28T19:24:04.094452Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/a4b7f5e1250042807f5a4cefeaad5dea-15.png", "player_count": 6, "ranked": true }, { "id": 7757, "name": "Beginner's Tournament (30 to 14 kyu)", "director": { "id": 148915, "username": "nishiyamo", "country": "de", "icon": "https://user-uploads.online-go.com/392a1d27255135d3ddd89f302b4dd653-64.png", "ratings": { "version": 5, "overall": { "rating": 1339.1450518645847, "deviation": 66.10891700691667, "volatility": 0.06000251048244951 } }, "ranking": 21.677391592759324, "professional": false, "ui_class": "" }, "description": "Everyone is welcome.\n\nThe main goal of this tournament is to bring beginners together and to make them learn from each other in a competitive environment.\n\nPlease be aware that you need to have played a certain amount of ranked games to be able to join this tournament.\n\nExperience shows that many participants don't show up on the day of the tournament. So, please spread the word and invite players from your contact list and study groups.", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 50, "time_control_parameters": { "time_control": "byoyomi", "period_time": 45, "main_time": 450, "periods": 5 }, "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": 8932, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png" }, "auto_start_on_max": false, "time_start": "2015-05-31T21:00:00Z", "players_start": 8, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 16, "analysis_enabled": true, "exclusivity": "open", "started": "2015-05-31T21:00:33.943088Z", "ended": "2015-06-01T01:37:30.248553Z", "start_waiting": "2015-05-31T21:00:33.458904Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png", "player_count": 28, "ranked": true }, { "id": 8496, "name": "Blitz 19x19 Elimination Tournament 2015-06-22 17:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260802T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-08-02T13:00:16.439833Z", "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": "2026-08-02T17:00:00Z", "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": "2015-06-22T17:30:04.607101Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-06-22T17:30:06.359158Z", "ended": "2015-06-22T17:57:07.634137Z", "start_waiting": "2015-06-22T17:30:06.209348Z", "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": 12942, "name": "Blitz 19x19 Elimination Tournament 2015-12-03 17:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260802T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-08-02T13:00:16.439833Z", "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": "2026-08-02T17:00:00Z", "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": "2015-12-03T17:30:54.843085Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-12-03T17:32:56.558057Z", "ended": "2015-12-03T17:50:23.700073Z", "start_waiting": "2015-12-03T17:32:56.445255Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 4, "ranked": true }, { "id": 7250, "name": "Primium Inter Pares 8-10 kyu", "director": { "id": 2183, "username": "udhar_nabresh", "country": "ro", "icon": "https://secure.gravatar.com/avatar/c00d28977111f76b775edc5ed92b2295?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1383.954111017063, "deviation": 61.72060229724941, "volatility": 0.05929588438965266 } }, "ranking": 22.43933473134293, "professional": false, "ui_class": "" }, "description": "8-10 kyu level players ... strong players say: \"the best defense is the attack\" ... i'm not a strong player ... i say: \"the best defense is the DEFENSE !\" ... let's see how it works ...", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, 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"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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260802T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-08-02T13:00:16.439833Z", "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": "2026-08-02T17:00:00Z", "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": "2015-08-09T05:30:47.456966Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-08-09T05:30:48.912884Z", "ended": "2015-08-09T05:57:12.697625Z", "start_waiting": "2015-08-09T05:30:48.838601Z", "board_size": 19, "active_round": null, "icon": 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strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 18078, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2020-04-03T07:00:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 25, "analysis_enabled": true, "exclusivity": "open", "started": "2020-04-03T07:00:38.226158Z", "ended": "2020-04-03T07:00:38.146810Z", "start_waiting": "2020-04-03T07:00:37.827298Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 1, "ranked": true }, { "id": 7269, "name": "Correspondence 19x19 RoundRobin 2015-05-08 01:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": 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