Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=654
{ "count": 59677, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=655", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=653", "results": [ { "id": 82915, "name": "Correspondence 9x9 RoundRobin 2021-11-25 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:20260517T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-05-17T19:00:14.586871Z", 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87879, "name": "38/3 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": "38/3 練習賽", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": -1, "rules": "japanese", "time_per_move": 36, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 30, "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": "2022-03-28T09:10:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2022-03-28T09:07:08.225827Z", "ended": "2022-03-28T10:09:45.726909Z", "start_waiting": "2022-03-28T09:07:08.131181Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 87872, "name": "Weekly Competition", "director": { "id": 1016829, "username": "kevinmath", "country": "cn", "icon": "https://secure.gravatar.com/avatar/6551af930e436f5e20cee09d91ad2508?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2189.914034510191, "deviation": 109.27083070484079, "volatility": 0.059961982966255836 } }, "ranking": 33.06327692927378, "professional": false, "ui_class": "" }, "description": "Vacation and pause will be disqualified.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 8640, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "correspondence", "pause_on_weekends": false, "total_time": 777600 }, "is_open": true, "exclude_provisional": true, "group": { "id": 11451, "name": "Mathematics Lover", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 11, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2022-04-02T04:00:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 20, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2022-04-02T04:00:33.263833Z", "ended": "2022-04-15T15:43:27.573061Z", "start_waiting": "2022-04-02T04:00:32.825180Z", "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": 100010, "name": "Correspondence 9x9 RoundRobin 2023-02-12 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:20260517T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-05-17T19:00:14.586871Z", "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": "2026-05-20T19:00:00Z", "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": "2023-02-12T19:00:20.675990Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2023-02-12T19:00:21.495261Z", "ended": "2023-03-24T19:27:34.771668Z", "start_waiting": "2023-02-12T19:00:20.749628Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 124820, "name": "Знакомство за игрой", "director": { "id": 58687, "username": "Russian", "country": "ru", "icon": "https://user-uploads.online-go.com/1ac09a805ecdb622ca9de592c596162e-64.png", "ratings": { "version": 5, "overall": { "rating": 2068.2001803450476, "deviation": 61.51434962336672, "volatility": 0.06005966243821885 } }, "ranking": 31.739478014344268, "professional": false, "ui_class": "" }, "description": "Нас не остановить!", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 70, 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