Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=543
{ "count": 59128, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=544", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=542", "results": [ { "id": 21174, "name": "Correspondence 9x9 RoundRobin 2016-10-04 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:20260324T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-03-24T19:00:20.501803Z", 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"https://user-uploads.online-go.com/69dc5c9576b388c1fc86c857114ab798-15.png", "player_count": 4, "ranked": true }, { "id": 80190, "name": "trucker999", "director": { "id": 1053634, "username": "trucker999", "country": "un", "icon": "https://secure.gravatar.com/avatar/67dd16fc48ac31d50930b5ecf56314bb?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1618.0700731032161, "deviation": 195.90097691664093, "volatility": 0.059999315817839446 } }, "ranking": 26.057434950223715, "professional": false, "ui_class": "provisional" }, "description": "hi everyone I AM A ADDICTION ON THIS GAME.", "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": true, "group": { "id": 25, "name": "Go Basics", "summary": 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"https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 8, "ranked": true }, { "id": 21335, "name": "Correspondence 9x9 RoundRobin 2016-10-10 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:20260324T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-03-24T19:00:20.501803Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": 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true, "exclusivity": "open", "started": "2016-10-10T01:01:13.133873Z", "ended": "2016-12-23T11:37:50.125147Z", "start_waiting": "2016-10-10T01:01:11.272598Z", "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": 74220, "name": "Test your handicap skills! (Round Robin version)", "director": { "id": 695886, "username": "KAOSkonfused", "country": "eu", "icon": "https://user-uploads.online-go.com/12da6fd6fdeaf47e72922ec512a0d83f-64.png", "ratings": { "version": 5, "overall": { "rating": 1417.499377917072, "deviation": 63.84399074562552, "volatility": 0.05989965397693259 } }, "ranking": 22.993768385595153, "professional": false, "ui_class": "supporter moderator" }, "description": "There are only few tournaments with handicap, so let’s have one (and hope that automatic handicap will work in this case ;) ) to test and practice our handicap skills. Have fun!", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "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": true, "group": { "id": 5903, "name": "Active forum users!", "summary": "Hi everyone have fun in this group ❤️🧡💛💚💙💜🖤🤍🤎🔴🟠🟡🟢🔵🟣⚫️⚪️🟤🟥🟧🟨🟩🟦🟪⬛️⬜️🟫☯️GS forum https://forums.online-go.com", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 28, "icon": "https://user-uploads.online-go.com/5cdf93a4f797602ea9769c9b9181930d-64.png" }, "auto_start_on_max": true, "time_start": "2021-04-26T12:00:00Z", "players_start": 6, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-04-21T13:38:03.278392Z", "ended": "2021-11-22T11:31:25.582343Z", "start_waiting": "2021-04-21T13:38:01.717343Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5cdf93a4f797602ea9769c9b9181930d-15.png", "player_count": 10, "ranked": true }, { "id": 82239, "name": "School Team 3rd Division", "director": { "id": 922838, "username": "go2708", "country": "un", "icon": "https://secure.gravatar.com/avatar/b3e7f690c33f687a9632741520125809?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2051.551691597471, "deviation": 123.68029630025042, "volatility": 0.05999816676709507 } }, "ranking": 31.5523722737371, "professional": false, "ui_class": "" }, "description": "School Team 3rd Division", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "chinese", "time_per_move": 26880, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "correspondence", "pause_on_weekends": true, "total_time": 2419200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 10182, "name": "DCFWMS-Team", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 14, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2021-11-08T07:22:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "invite", "started": "2021-11-08T07:22:00.620213Z", "ended": "2021-12-13T07:12:54.371429Z", "start_waiting": "2021-11-08T07:22:00.534898Z", "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": 25608, "name": "Be Unique Tournament", "director": { "id": 376992, "username": "bubbleteaknj", "country": "_Pirate", "icon": "https://user-uploads.online-go.com/2e667709fdb4e36a2e5b3c4400fda49a-64.png", "ratings": { "version": 5, "overall": { "rating": 1023.8287309517791, "deviation": 67.03996013729474, "volatility": 0.05997976412077465 } }, "ranking": 15.46203024516638, "professional": false, "ui_class": "" }, "description": "A tournament where you play moves that are unique/that you would not normally play and play a different style of go then you normally use.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 3, "name": "OGS", "summary": "An open group for folks' who like OGS!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 1778, "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png" }, "auto_start_on_max": true, "time_start": "2017-03-20T02:00:00Z", "players_start": 6, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2017-03-21T16:45:43.458635Z", "ended": "2017-04-19T23:12:20.469094Z", "start_waiting": "2017-03-21T16:45:41.314488Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png", "player_count": 6, "ranked": true }, { "id": 79940, "name": "Classic W.D.D.T. 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