Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=player_count&page=1371
{ "count": 59692, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=1372", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=1370", "results": [ { "id": 73884, "name": "Big tournament 9X9", "director": { "id": 910029, "username": "yeong ha ko", "country": "fr", "icon": "https://user-uploads.online-go.com/0456aecb47ecd3a87457e7b4e1acc1a9-64.png", "ratings": { "version": 5, "overall": { "rating": 1732.4568994457843, "deviation": 71.3527930233796, "volatility": 0.06075833324406251 } }, "ranking": 27.638729220033547, "professional": false, "ui_class": "" }, "description": "afv wbt wrbg w rny e tny. eentueunety", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 10, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 0, "period_time": 10, "periods": 1 }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. 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"random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2021-04-14T18:04:27.215175Z", "ended": "2021-04-14T18:21:53.898258Z", "start_waiting": "2021-04-14T18:04:27.037731Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/9be38b7f0095989a12c791eaf3eee41f-15.png", "player_count": 4, "ranked": true }, { "id": 77271, "name": "League nội bộ tháng 7", "director": { "id": 281554, "username": "TYDC", "country": "_DOOP", "icon": "https://user-uploads.online-go.com/bbd482f273f613d97a246c2d297b822c-64.png", "ratings": { "version": 5, "overall": { "rating": 1777.8878372618747, "deviation": 63.87558080875703, "volatility": 0.05991597891921847 } }, "ranking": 28.237978020441133, "professional": false, "ui_class": "" }, "description": "Hẹn nhau đánh live xếp hạng hàng tháng", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 9600, 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"https://user-uploads.online-go.com/605421e94b90e6e3b22ec09b80180283-15.png", "player_count": 4, "ranked": true }, { "id": 74204, "name": "Blitz 19x19 Elimination Tournament 2021-04-21 01:30", "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 Sitewide Tournament", "schedule": { "id": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260519T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-05-19T13:00:12.824072Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, 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"started": "2021-04-21T01:31:09.220412Z", "ended": "2021-04-21T01:55:28.832088Z", "start_waiting": "2021-04-21T01:31:09.080304Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 4, "ranked": true }, { "id": 73850, "name": "3rd 13x13 Air Tournament: Group C", "director": { "id": 473434, "username": "DoubleSente", "country": "us", "icon": "https://user-uploads.online-go.com/7a52b9c53ec155ff3c7d9a45c75edecf-64.png", "ratings": { "version": 5, "overall": { "rating": 1891.386906647593, "deviation": 62.91280212348621, "volatility": 0.05998964037582742 } }, "ranking": 29.67060006447044, "professional": false, "ui_class": "" }, "description": "Top two will progress to the final round!", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 88320, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", 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