Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-auto_start_on_max&page=5176
{ "count": 59654, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-auto_start_on_max&page=5177", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-auto_start_on_max&page=5175", "results": [ { "id": 140194, "name": "Live 9x9 Double Elimination Tournament 2026-05-13 06:30", "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 Site-wide Tournament", "schedule": { "id": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260516T140000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": 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"2026-05-13T18:31:49.758534Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 5, "ranked": true }, { "id": 140197, "name": "tornamennto2", "director": { "id": 1608024, "username": "S-Tsumugi", "country": "jp", "icon": "https://secure.gravatar.com/avatar/8a91909e8b623e3084f318f861e92c13?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 746.6593474132152, "deviation": 70.73307032676932, "volatility": 0.06014307918211424 } }, "ranking": 8.153679810949013, "professional": false, "ui_class": "" }, "description": "minnnadegannbarou", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 4, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "blitz", "pause_on_weekends": false, "per_move": 4 }, "is_open": true, "exclude_provisional": false, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 17961, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2026-05-15T21:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 15, "analysis_enabled": false, "exclusivity": "open", "started": null, "ended": null, "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 2, "ranked": false }, { "id": 138978, "name": "World Cup 3", "director": { "id": 1236996, "username": "MingLau", "country": "hk", "icon": "https://user-uploads.online-go.com/0d6ac99b94f3598fc46abd7588a3f568-64.png", "ratings": { "version": 5, "overall": { "rating": 1094.5105777444942, "deviation": 68.09556232756846, "volatility": 0.060076988261645106 } }, "ranking": 17.00747897971579, "professional": false, "ui_class": "" }, "description": "做世界高手吧！\nBe the strongest in OGS!\n\n<p><H2><I><a Href=\"https://online-go.com/group/13697\"><big><span style=\"color:yellow;\">Online Go Tournament🎖️\n\n\n<div style=\"\n background: rgba(0, 0, 0.6);\n border: 2px solid gold;\n border-radius: 30px;\n padding: 15px;\n backdrop-filter: blur(5px);\n color: #fff;\n text-align: center;\n box-shadow: 0 0 15px gold;\n\">\n <h3> <span style=\"color:tomato;\">🎯Please join my group🎯</h3>\n <p> <span style=\"color:cyan;\">Welcome anyone to join! </p>\n <a href=\"https://online-go.com/group/13697\" style=\"\n display: inline-block;\n background-color: #4CAF50;\n color: white;\n padding: 10px 20px;\n text-align: center;\n text-decoration: none;\n font-size: 16px;\n border-radius: 8px;\n border: none;\n cursor: pointer;\n\"><span style=\"color:indigo;\">👉 Click me to join group👈 </a>\n\n <!DOCTYPE html> <html lang=\"en\"> <head> <link rel=\"stylesheet\" type=\"text/css\" href=\"https://yewang.github.io/ProfileCSS/profile.css \"> <link rel=\"stylesheet\" type=\"text/css\" </head>", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": false, "per_move": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 13697, "name": "𝓞𝓷𝓵𝓲𝓷𝓮 𝓖𝓸 𝓣𝓸𝓾𝓻𝓷𝓪𝓶𝓮𝓷𝓽", "summary": "Dear members: Thank you for your support! Our guild needs the help of more people to make the guild prosper. I hope everyone can contribute, join the guild, and recommend your friends to this big family.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 107, "icon": "https://user-uploads.online-go.com/0d6ac99b94f3598fc46abd7588a3f568-64.png" }, "auto_start_on_max": false, "time_start": "2026-08-01T08:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": null, "ended": null, "start_waiting": null, "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/0d6ac99b94f3598fc46abd7588a3f568-15.png", "player_count": 12, "ranked": true }, { "id": 140180, "name": "Correspondence 19x19 RoundRobin 2026-05-13 19:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": 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"https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 7, "ranked": true }, { "id": 140208, "name": "Correspondence 13x13 RoundRobin 2026-05-14 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 Site-wide Tournament", "schedule": { "id": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260513T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-05-13T19:00:49.979102Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { 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