Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=ended&page=1605
{ "count": 58970, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=1606", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=1604", "results": [ { "id": 36872, "name": "Correspondence 13x13 RoundRobin 2018-05-02 01:00", "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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260314T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-03-14T19:00:11.041048Z", "lead_time_seconds": 86400, 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"us", "icon": "https://user-uploads.online-go.com/8d520fad1b05e7b3b395c47b31b385fc-64.png", "ratings": { "version": 5, "overall": { "rating": 993.1820506300858, "deviation": 65.72760281415258, "volatility": 0.05999822243216713 } }, "ranking": 14.75848888600187, "professional": false, "ui_class": "" }, "description": "Group tournament. 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Here to have fun and improve our game of Go!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 14, "icon": "https://user-uploads.online-go.com/b592841cb83c46074388e9cdb46bf293-64.png" }, "auto_start_on_max": false, "time_start": "2018-05-31T17:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2018-05-31T17:00:33.714004Z", "ended": "2018-06-15T09:31:49.440326Z", "start_waiting": "2018-05-31T17:00:32.554013Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/b592841cb83c46074388e9cdb46bf293-15.png", "player_count": 7, "ranked": true }, { "id": 38169, "name": "Live 9x9 Double Elimination Tournament 2018-06-15 14:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": 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"player_count": 4, "ranked": true }, { "id": 38172, "name": "Blitz 19x19 Elimination Tournament 2018-06-15 17:30", "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:20260315T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-03-15T01:00:11.130952Z", "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, 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