Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=2097
{ "count": 60951, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=2098", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=2096", "results": [ { "id": 5733, "name": "Blitz 13x13 Swiss Tournament 2015-03-10 19:30", "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:20260906T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-09-06T23:00:33.229135Z", "lead_time_seconds": 1800, 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"maximum_players": 100 }, "next_run": "2026-09-07T06:00:00Z", "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": "2015-03-12T14:30:15.560562Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-03-12T14:30:17.117226Z", "ended": "2015-03-12T15:32:11.799040Z", "start_waiting": "2015-03-12T14:30:16.932418Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 6, "ranked": true }, { "id": 5782, "name": "Blitz 19x19 Elimination Tournament 2015-03-12 17:30", "director": { "id": 4, 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