Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=player_count&page=5357
{ "count": 59587, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=5358", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=5356", "results": [ { "id": 118733, "name": "DDK Tournament Series #1 (Correspondence 19*19)", "director": { "id": 1583021, "username": "thebeautyofmath.kl.lac.2", "country": "un", "icon": "https://secure.gravatar.com/avatar/f4ceceed4b2a54a7bb4849c0bab231b1?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 786.6429380415319, "deviation": 62.01701835195671, "volatility": 0.06020617957703907 } }, "ranking": 9.36130863178452, "professional": false, "ui_class": "" }, "description": "DDK Tournament (Correspondence) - Double Elimination Game", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 91187, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "correspondence", "pause_on_weekends": true, "main_time": 604800, "period_time": 86400, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 24, "name": "Double Digit Kyu Room", "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. 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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 Site-wide Tournament", "schedule": { "id": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260509T220000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-05-09T22:00:49.449439Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "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": "2026-05-10T02:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 41, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2024-11-02T18:30:33.576540Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2024-11-02T18:31:33.679161Z", "ended": "2024-11-02T19:19:40.011137Z", "start_waiting": "2024-11-02T18:31:33.577669Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 11, "ranked": true }, { "id": 118227, "name": "NINJA 9x9 CUP OF 2024 AUTUMN", "director": { "id": 1592556, "username": "deleted-47061df4-051a-4dd5-98bb-44f768633612", "country": "ca", "icon": "https://secure.gravatar.com/avatar/f1dbb39266dcc84460f9bd20e34a0c50?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1613.725057573728, "deviation": 219.91826447236897, "volatility": 0.06000369880396076 } }, "ranking": 25.995186468468802, "professional": false, "ui_class": "provisional" }, "description": "Whoever stands last will be crowned onto the group page https://online-go.com/group/14486 ! So that means if you don't join the group you won't be listed there! Be sure to join the group!\n\nGood luck and have fun in the tournament!", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "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": false, "group": { "id": 14486, "name": "TITLE CLUB OF OGS", "summary": "Hello everyone, welcome to the OFFICIAL OGS TITLE CLUB. 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If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nSingle elimination tournament every Thursday.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "chinese", "time_per_move": 43884, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 43200, "initial_time": 86400, "max_time": 172800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 12619, "name": "Happy Go!!!", "summary": "Feel free to join and create tournaments！\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday \nSingle Elimination tournaments every Thursday\n\nHAPPY", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 71, "icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png" }, "auto_start_on_max": false, 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