Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=4623
{ "count": 60463, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=4624", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=4622", "results": [ { "id": 7020, "name": "Correspondence 9x9 RoundRobin 2015-04-28 01:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260731T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-07-31T19:00:16.465774Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 10 }, "next_run": "2026-08-03T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 259200, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2015-04-28T01:00:32.820662Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2015-04-28T01:00:54.542089Z", "ended": "2015-07-01T12:36:05.988987Z", "start_waiting": "2015-04-28T01:00:53.509959Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 12495, "name": "good luck", "director": { "id": 148855, "username": "SLScraft", "country": "un", "icon": "https://user-uploads.online-go.com/bbf6a8942d6de1a3b70bc7f60f38f54f-64.png", "ratings": { "version": 5, "overall": { "rating": 931.049844681381, "deviation": 79.54299923247758, "volatility": 0.06001028392084275 } }, "ranking": 13.262971881467163, "professional": false, "ui_class": "" }, "description": "have fun for everybody", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 691209, "time_control_parameters": { "time_control": "fischer", "initial_time": 840, "max_time": 691200, "time_increment": 691200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 19, "name": "頑張って”Good Luck\"", "summary": "We are here to help! Ask questions! We wish you luck on your 囲碁（Igo).", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 15, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2015-11-17T19:22:00Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 10, "analysis_enabled": true, "exclusivity": "open", "started": "2015-12-31T14:08:45.868974Z", "ended": "2015-12-31T14:36:47.158437Z", "start_waiting": "2015-12-31T14:08:45.776188Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 14085, "name": "หรรษาวาเลนไทน์", "director": { "id": 120320, "username": "Ignil", "country": "_GoT_Lannister", "icon": "https://user-uploads.online-go.com/e9f6ae33557bfe5d19889c6e4af8dcc4-64.png", "ratings": { "version": 5, "overall": { 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