Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=4609
{ "count": 59274, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=4610", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=4608", "results": [ { "id": 67843, "name": "Live 9x9 Double Elimination Tournament 2020-11-15 14:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260408T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-08T18:00:04.575966Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-04-08T22:00:00Z", "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": "2020-11-15T14:30:22.362356Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-11-15T14:30:24.032759Z", "ended": "2020-11-15T15:52:12.172368Z", "start_waiting": "2020-11-15T14:30:23.572873Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 13, "ranked": true }, { "id": 43118, "name": "For Beginners Correspondence DE 9x9 12/22/2018", "director": { "id": 572024, "username": "BeamingBlackFlame", "country": "us", "icon": "https://user-uploads.online-go.com/59c118eb318e6d5e29c7f4adc6d995c9-64.png", "ratings": { "version": 5, "overall": { "rating": 1133.3918928571395, "deviation": 62.93043043373966, "volatility": 0.05999229649867983 } }, "ranking": 17.815587822314367, "professional": false, "ui_class": "" }, "description": "Beginners Tournament for anybody between 25 - 20k", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 172800, "time_control_parameters": { "time_control": "simple", "speed": "correspondence", "system": "simple", "pause_on_weekends": false, "per_move": 172800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 2946, "name": "Final Frontier", "summary": "Welcome to Final Frontier.\n\nWe have tons of tournaments and a magnificent director-Picard.\nPlease join this frontier soon, we are closing!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 73, "icon": "https://user-uploads.online-go.com/dc9146aa65b9a001214cf5f3ed95a719-64.png" }, "auto_start_on_max": false, "time_start": "2018-12-22T17:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 10, "analysis_enabled": true, "exclusivity": "open", "started": "2018-12-22T17:00:09.648954Z", "ended": "2019-02-08T17:56:45.951935Z", "start_waiting": "2018-12-22T17:00:08.753396Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/dc9146aa65b9a001214cf5f3ed95a719-15.png", "player_count": 18, "ranked": true }, { "id": 112524, "name": "9x9 Mini League 10k-25k #216", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1362.696896450698, "deviation": 69.59061153433855, "volatility": 0.0602053387269744 } }, "ranking": 22.080997001914177, "professional": false, "ui_class": "" }, "description": "Special league for players between 25kyu and 10kyu. 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