Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-board_size&page=1208
{ "count": 59385, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=1209", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=1207", "results": [ { "id": 111247, "name": "王座銀河圍棋世界大賽", "director": { "id": 1431566, "username": "Primal Go Ninja", "country": "_GoT_Targaryen", "icon": "https://user-uploads.online-go.com/366a8cb3e3cd7b8f6c29cb29f0b963e6-64.png", "ratings": { "version": 5, "overall": { "rating": 1354.2104875903526, "deviation": 149.8873687127495, "volatility": 0.06000513787986095 } }, "ranking": 21.93637594843054, "professional": false, "ui_class": "" }, "description": "(世界盃)大戰", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 604800, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": false, "per_move": 604800 }, "is_open": true, "exclude_provisional": true, "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. 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"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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260214T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-02-14T19:00:20.493017Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 432000, "time_increment": 86400 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclude_provisional": true, "players_start": 4, "first_pairing_method": 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