Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4879
{ "count": 60111, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4880", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4878", "results": [ { "id": 3940, "name": "Blitz 13x13 Swiss Tournament 2015-01-04 03:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260702T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-07-02T23:00:17.732057Z", 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"settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-07-03T03:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2020-08-05T19:30:18.326591Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-08-05T19:30:20.493085Z", "ended": "2020-08-05T20:19:56.635384Z", "start_waiting": "2020-08-05T19:30:20.139354Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 55052, 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"2017-05-27T16:30:20.033551Z", "ended": "2017-05-27T18:20:47.043879Z", "start_waiting": "2017-05-27T16:30:19.648505Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true }, { "id": 492, "name": "goperson's beginners tournament", "director": { "id": 19683, "username": "goperson", "country": "un", "icon": "https://secure.gravatar.com/avatar/09a3abc554ae8f39bb7316fa87b59919?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1171.4402674320318, "deviation": 75.79030528567365, "volatility": 0.05997663600026165 } }, "ranking": 18.57998178771383, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 259200, "time_control_parameters": { "time_control": "simple", "per_move": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS 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