Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=board_size&page=4307
{ "count": 59228, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=4308", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=4306", "results": [ { "id": 57554, "name": "Trondheim Test Tournament", "director": { "id": 235785, "username": "Rasmunis", "country": "no", "icon": "https://secure.gravatar.com/avatar/e0848f8389a560143ab544990ade9518?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1804.1568507416835, "deviation": 70.27400951979892, "volatility": 0.060046136642050905 } }, "ranking": 28.577526304842316, "professional": false, "ui_class": "" }, "description": "Trondheim Test Tournament", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 16, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "live", "pause_on_weekends": false, "time_increment": 10, "initial_time": 600, "max_time": 1200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4579, "name": "Trondheim Goklubb", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 12, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-03-18T17:25:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2020-03-18T17:22:20.328503Z", "ended": "2020-03-18T20:05:34.884772Z", "start_waiting": "2020-03-18T17:22:19.852785Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 57641, "name": "The world go", "director": { "id": 736022, "username": "楊博皓", "country": "hk", "icon": "https://user-uploads.online-go.com/0bcc85dcf5138f903a59c1fc96b917bc-64.png", "ratings": { "version": 5, "overall": { "rating": 1541.604332011829, "deviation": 65.76762527276921, "volatility": 0.05999650627120625 } }, "ranking": 24.93673238502052, "professional": false, "ui_class": "" }, "description": "You can play go there", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 35, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 1800, "period_time": 15, "periods": 10 }, "is_open": true, "exclude_provisional": false, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all 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": 17873, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": true, "time_start": "2020-03-18T13:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-03-18T19:37:08.813358Z", "ended": "2020-03-18T20:26:14.482573Z", "start_waiting": "2020-03-18T19:37:06.775703Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 4, "ranked": true }, { "id": 55482, "name": "Correspondence 19x19 RoundRobin 2020-01-09 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 Sitewide Tournament", "schedule": { "id": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260403T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-04-03T19:00:26.958080Z", "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": "2026-04-06T19:00:00Z", "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": "2020-01-09T19:00:24.895099Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2020-01-09T19:01:01.054378Z", "ended": "2020-04-25T01:58:28.614306Z", "start_waiting": "2020-01-09T19:00:56.729455Z", "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": 57474, "name": "rrrrrrrrrrrr", "director": { "id": 738665, "username": "cutyhany", "country": "kr", "icon": "https://secure.gravatar.com/avatar/055895f7c182a7ea803661ac49d51e29?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1634.4570405293491, "deviation": 69.09882329594102, "volatility": 0.06003406198391524 } }, "ranking": 26.290706798575638, "professional": false, "ui_class": "" }, "description": "rrrrrrrrrrrr", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 515, "name": "OGS Title Tournaments", "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? 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"2020-03-29T09:30:41.776850Z", "ended": "2020-03-29T09:59:39.988329Z", "start_waiting": "2020-03-29T09:30:41.196743Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 5, "ranked": true }, { "id": 57440, "name": "ㄷㄷㄷㄷㄷㄷ", "director": { "id": 738665, "username": "cutyhany", "country": "kr", "icon": "https://secure.gravatar.com/avatar/055895f7c182a7ea803661ac49d51e29?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1634.4570405293491, "deviation": 69.09882329594102, "volatility": 0.06003406198391524 } }, "ranking": 26.290706798575638, "professional": false, "ui_class": "" }, "description": "토너먼트 만은 토너먼트를 준비 하겠다", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 10, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "live", "pause_on_weekends": false, "time_increment": 10, "initial_time": 30, 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Last activity: 2020.\n\nTo be added to this group you must have attended in person or be invited by a current member.", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 7, "icon": "https://user-uploads.online-go.com/f14c366bb96a6da105a731b126e384a7-64.png" }, "auto_start_on_max": false, "time_start": "2020-03-21T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2020-03-15T12:35:16.559352Z", "ended": "2020-03-15T12:43:21.193491Z", "start_waiting": "2020-03-15T12:35:13.027645Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/f14c366bb96a6da105a731b126e384a7-15.png", "player_count": 6, "ranked": true }, { "id": 58246, "name": "Blitz 19x19 Elimination Tournament 2020-03-30 21:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260404T050000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-04-04T05:00:16.534032Z", "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": "2026-04-04T09:00:00Z", "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": "2020-03-30T21:30:11.882539Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-03-30T21:30:13.638582Z", "ended": "2020-03-30T22:01:38.326411Z", "start_waiting": "2020-03-30T21:30:12.884829Z", "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 } ] }
