Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-board_size&page=2684
{ "count": 59288, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=2685", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=2683", "results": [ { "id": 53478, "name": "Blitz 13x13 Swiss Tournament 2019-11-01 23:30", "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": "supporter moderator admin" }, "description": "Automatic Sitewide Tournament", "schedule": { "id": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260410T070000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-04-10T07:00:33.468167Z", "lead_time_seconds": 1800, 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null, "auto_start_on_max": false, "time_start": "2023-01-17T03:30:37.862184Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-01-17T03:30:39.285819Z", "ended": "2023-01-17T04:09:41.426173Z", "start_waiting": "2023-01-17T03:30:39.122710Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 7, "ranked": true }, { "id": 29498, "name": "13x13 one-color-go tournament", "director": { "id": 336196, "username": "kickaha", "country": "eu", "icon": "https://user-uploads.online-go.com/823c5fca3fab25405c66070b7869fc02-64.png", "ratings": { "version": 5, "overall": { "rating": 1816.3411131655357, "deviation": 60.90788975471195, "volatility": 0.0599065647077631 } }, "ranking": 28.733342848747203, "professional": false, "ui_class": "supporter" }, "description": "second 13x13 one color go tournament. games should be paused as soon as the tournament starts and players will be responsible for scheduling their games at some point in the not to distant future :D.\n\nfor a discription about how to play one color go please visit the group page. if there are other questions ask away!", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 91200, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 432000, "max_time": 604800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 1534, "name": "OneColorGo-Group", "summary": "You are all welcome! :D", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 47, "icon": "https://user-uploads.online-go.com/932ea2aa1a94da488c92133f7f268199-64.png" }, 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