Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=board_size&page=20
{ "count": 59362, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=21", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=19", "results": [ { "id": 9008, "name": "Correspondence 9x9 RoundRobin 2015-07-12 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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260414T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-14T19:00:56.031508Z", "lead_time_seconds": 86400, 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"https://user-uploads.online-go.com/377f55c70dc6d0f96d66a92236bb05d1-15.png", "player_count": 10, "ranked": true }, { "id": 64044, "name": "At least we cant die again!", "director": { "id": 217422, "username": "GoIsGo", "country": "us", "icon": "https://user-uploads.online-go.com/3480f5ebe011178583f9c9e3e418572c-64.png", "ratings": { "version": 5, "overall": { "rating": 1452.140000075292, "deviation": 60.78518192330596, "volatility": 0.06019174934814814 } }, "ranking": 23.55270228142398, "professional": false, "ui_class": "" }, "description": "Just make a move a day, no sweat right?", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": true, "per_move": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 2014, "name": "The Nines 9x9 ", "summary": "9x9 Go!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 373, "icon": "https://user-uploads.online-go.com/809b7c04dc9f8a7b416cd2c50a71dc90-64.png" }, "auto_start_on_max": false, "time_start": "2020-08-08T20:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2020-08-08T20:00:30.105779Z", "ended": "2020-08-11T22:01:50.782591Z", "start_waiting": "2020-08-08T20:00:29.666733Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/809b7c04dc9f8a7b416cd2c50a71dc90-15.png", "player_count": 4, "ranked": true }, { "id": 66873, "name": "Live 9x9 Double Elimination Tournament 2020-10-20 18:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro", "ratings": 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"group_size": "3", "maximum_players": 100 }, "next_run": "2026-04-17T06:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "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": "2020-10-20T18:30:45.639356Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-10-20T18:31:45.975110Z", "ended": "2020-10-20T19:47:20.407652Z", "start_waiting": "2020-10-20T18:31:45.490969Z", "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": 76990, "name": "Friday competition", "director": { "id": 1003467, "username": "GJ4444", "country": "un", "icon": "https://secure.gravatar.com/avatar/c00999d0add89d41bb2bd37bde109ec8?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1233.9058890974627, "deviation": 69.34478558497867, "volatility": 0.060022578864278434 } }, "ranking": 19.782639754314864, "professional": false, "ui_class": "" }, "description": "Friday competition", "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": 9152, "name": "Scrape IT Go Meeting", "summary": "Scrape IT Go Meeting", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 8, "icon": "https://user-uploads.online-go.com/6aa0aa7db9a161e174c24b1a6cf5af54-64.png" }, "auto_start_on_max": false, "time_start": "2021-07-02T11:10:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-07-02T11:10:56.721166Z", "ended": "2021-07-23T12:05:48.544476Z", "start_waiting": "2021-07-02T11:10:56.591735Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/6aa0aa7db9a161e174c24b1a6cf5af54-15.png", "player_count": 4, "ranked": true }, { "id": 64602, "name": "Live 9x9 Double Elimination Tournament 2020-08-22 22:30", "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 } }, 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