Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-first_pairing_method&page=4536
{ "count": 60282, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-first_pairing_method&page=4537", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-first_pairing_method&page=4535", "results": [ { "id": 16092, "name": "Correspondence 13x13 RoundRobin 2016-03-28 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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260715T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-07-15T19:00:48.349285Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 13, "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": "2026-07-18T19:00:00Z", "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": "2016-03-28T01:00:15.527225Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2016-03-28T01:00:35.798203Z", "ended": "2016-06-13T19:53:48.267590Z", "start_waiting": "2016-03-28T01:00:34.613390Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 10, "ranked": true }, { "id": 31288, "name": "Sensei no Itte", "director": { "id": 450675, "username": "_Shades_", "country": "us", "icon": "https://user-uploads.online-go.com/60e7ae8badc9786be43bd12130573b69-64.png", "ratings": { "version": 5, "overall": { "rating": 1228.7899741002382, "deviation": 68.97373094993817, "volatility": 0.05999808864422312 } }, "ranking": 19.68645767651941, "professional": false, "ui_class": "" }, "description": "If you are five stones (or more) stronger than your opponent, please make a review after the game is finished. It doesn't have to be a live review, but it should be completed within a week after the game finishes.\n\nIf you are the lucky recipient of such a review, please be sure to go back and read the review to improve your Go.\n\n\n:D\n\nUnsure of how to conduct a review? Check this out:\n\nhttps://senseis.xmp.net/?Review", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 31680, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 28800, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. 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