Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=5419
{ "count": 58869, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=5420", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=5418", "results": [ { "id": 130758, "name": "Blitz 13x13 Swiss Tournament 2025-07-23 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 Site-wide Tournament", "schedule": { "id": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260307T110000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-03-07T11:00:19.943573Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-03-07T15:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 15, "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": "2025-07-23T23:30:54.885014Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2025-07-23T23:31:54.957484Z", "ended": "2025-07-24T00:00:30.025765Z", "start_waiting": "2025-07-23T23:31:54.881393Z", "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": 12069, "name": "19x19 kyu games", "director": { "id": 124930, "username": "Laon", "country": "us", "icon": "https://user-uploads.online-go.com/aebc1677a4dac7a11c4b33afe7af1a64-64.png", "ratings": { "version": 5, "overall": { "rating": 1949.7195017344263, "deviation": 61.135875227306116, "volatility": 0.06004291355369448 } }, "ranking": 30.373784647169398, "professional": false, "ui_class": "" }, "description": "a tournament for kyus", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 313, "time_control_parameters": { "time_control": "byoyomi", "period_time": 300, "main_time": 1200, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 329, "name": "Iemoto", "summary": "This group is made up of four \"Go Houses\": Honinbo, Hayashi, Inoue, Yasui.\n\n### Igo Houses (Iemoto)\n\n+ Each house has a current \"head.\" Anyone stronger than 5 kyu can become a head.\n+ Each head chooses his/her own disciples. 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null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 102725, "name": "Live 19x19 Swiss Tournament 2023-04-30 04:30", "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": 4, "name": "Live 19x19 Swiss Tournament", "rrule": "DTSTART:20260307T120000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-03-07T12:00:19.961854Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { 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