Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-id&page=4403
{ "count": 59217, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-id&page=4404", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-id&page=4402", "results": [ { "id": 33115, "name": "Correspondence 19x19 RoundRobin 2017-12-26 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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260331T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-03-31T19:00:15.081472Z", "lead_time_seconds": 86400, 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true, "group": null, "auto_start_on_max": false, "time_start": "2017-12-30T17:00:38.207548Z", "players_start": 60, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2017-12-30T17:01:24.615979Z", "ended": "2020-04-08T22:55:37.941604Z", "start_waiting": "2017-12-30T17:00:53.634079Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 78, "ranked": true }, { "id": 33102, "name": "Blitz 19x19 Elimination Tournament 2017-12-25 09:30", "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": 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