Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=4856
{ "count": 59320, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=4857", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=4855", "results": [ { "id": 52214, "name": "God of Go OGS 1st 9x9 Tournament", "director": { "id": 681235, "username": "johannguyen", "country": "sg", "icon": "https://user-uploads.online-go.com/5b71579a2dd747619908f8c25e7257b3-64.png", "ratings": { "version": 5, "overall": { "rating": 1786.0753867808758, "deviation": 64.7454226166136, "volatility": 0.060078710528863946 } }, "ranking": 28.344343935517347, "professional": false, "ui_class": "" }, "description": "God of Go OGS 1st 9x9 Tournament", "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", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4006, "name": "God of Go", "summary": "FIRST DECENTRALIZED GO LEARNING AND PLAYING PLATFORM", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 412, "icon": "https://user-uploads.online-go.com/e758f131015bdcdb1ffce1d7e8b77f6d-64.png" }, "auto_start_on_max": true, "time_start": "2019-09-22T03:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 32, "analysis_enabled": false, "exclusivity": "open", "started": "2019-09-21T16:49:09.530634Z", "ended": "2019-11-05T16:00:41.976560Z", "start_waiting": "2019-09-21T16:49:08.806674Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e758f131015bdcdb1ffce1d7e8b77f6d-15.png", "player_count": 10, "ranked": true }, { "id": 51344, "name": "Correspondence 9x9 RoundRobin 2019-08-23 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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260411T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-11T19:00:35.817277Z", "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": "2026-04-14T19:00:00Z", "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": "2019-08-23T19:00:13.526770Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2019-08-23T19:01:09.223214Z", "ended": "2019-09-05T11:38:55.220569Z", "start_waiting": "2019-08-23T19:01:03.803046Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 9, "ranked": true }, { "id": 122001, "name": "VML Winter Cup [9x9]", "director": { "id": 103583, "username": "Aftiz", "country": "ru", "icon": "https://user-uploads.online-go.com/66aae2ca71ca69f866afb2be7f0dbfc5-64.png", "ratings": { "version": 5, "overall": { "rating": 1693.576925816964, "deviation": 64.42986720098924, "volatility": 0.05995472878586412 } }, "ranking": 27.11327612922138, "professional": false, "ui_class": "" }, "description": "Welcome to the Winter Cup 2025! This tournament is dedicated to finding the strongest player of the winter season. Let the competition begin!\n___________________________________________________________\n\nДобро пожаловать на Winter Cup 2025! Этот турнир определит сильнейшего игрока зимнего сезона. Да начнётся соревнование!", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 86400, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 14700, "name": "Victory Move League", "summary": "Welcome to Victory Move League! We are a group of Go enthusiasts hosting our own league. 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