Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-rules&page=425
{ "count": 60244, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-rules&page=426", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-rules&page=424", "results": [ { "id": 63127, "name": "Blitz 19x19 Elimination Tournament 2020-07-15 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:20260713T210000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-07-13T21:00:19.518218Z", "lead_time_seconds": 1800, 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false, "time_start": "2020-12-05T03:49:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2020-12-05T03:48:30.708600Z", "ended": "2020-12-05T04:17:06.178333Z", "start_waiting": "2020-12-05T03:48:30.555303Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 59837, "name": "That's great", "director": { "id": 743424, "username": "The best 31 kyu", "country": "003", "icon": "https://secure.gravatar.com/avatar/abff2c4c5a4e77fbacac885a97a20756?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1380.1285708607697, "deviation": 62.80870091968557, "volatility": 0.05994386514694468 } }, "ranking": 22.375254657511984, "professional": false, "ui_class": "" }, "description": "I cool tourament", "schedule": null, "title": null, 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"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 68727, "name": "Carsten V Magnus", "director": { "id": 886893, "username": "ShadowFey", "country": "un", "icon": "https://secure.gravatar.com/avatar/0f055c894ae01b14f3e4e5fe821bfdf1?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1194.6200217650803, "deviation": 267.92696962207265, "volatility": 0.06000115002236258 } }, "ranking": 19.0335868658704, "professional": false, "ui_class": "provisional" }, "description": "Carsten V Magnus", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 31, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "live", "pause_on_weekends": false, "time_increment": 30, "initial_time": 120, "max_time": 300 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7261, "name": "TG Goklub", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 19, "icon": "https://user-uploads.online-go.com/89b3efbf4d77e9dbd7a9a5609e2deb27-64.png" }, "auto_start_on_max": true, "time_start": "2020-12-08T14:44:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-12-08T14:44:43.119160Z", "ended": "2020-12-08T15:16:33.405054Z", "start_waiting": "2020-12-08T14:44:42.889982Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/89b3efbf4d77e9dbd7a9a5609e2deb27-15.png", "player_count": 2, "ranked": true }, { "id": 59835, "name": "Live 9x9 Double Elimination Tournament 2020-04-29 18:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro", "ratings": { "version": 5, 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"maximum_players": 100 }, "next_run": "2026-07-14T02:00:00Z", "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": "2020-04-29T18:30:35.177134Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-04-29T18:31:35.239770Z", "ended": "2020-04-29T19:49:23.453492Z", "start_waiting": "2020-04-29T18:31:33.849269Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 13, "ranked": true }, { "id": 137602, "name": "Blitz 19x19 Elimination Tournament 2026-02-21 17:30", "director": { "id": 4, 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"country": "_LGBT", "icon": "https://user-uploads.online-go.com/a2e7f9e59abe305c58d78f58f24e5f13-64.png", "ratings": { "version": 5, "overall": { "rating": 1202.9988304018043, "deviation": 63.65104965647946, "volatility": 0.05957405036263833 } }, "ranking": 19.195389238576333, "professional": false, "ui_class": "" }, "description": "Reddit Round Robin Handicap Correspondence 16 Kyu - 6 Kyu", "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": 38, "name": "reddit", "summary": "/r/baduk", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 2286, "icon": 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