Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-start_waiting&page=4534
{ "count": 58866, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-start_waiting&page=4535", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-start_waiting&page=4533", "results": [ { "id": 37352, "name": "Peaceful Plains", "director": { "id": 480527, "username": "MystWalker", "country": "_Pirate", "icon": "https://secure.gravatar.com/avatar/b3b2121f9ff52cadf9207647eafe3d0d?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1488.0707503098765, "deviation": 63.596071130064495, "volatility": 0.06006278116597288 } }, "ranking": 24.118538100052163, "professional": false, "ui_class": "" }, "description": "A tournament for those that wish to enjoy the more intimate space of the 9x9 board.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 57600, "time_control_parameters": { "period_time": 172800, "main_time": 0, "system": "canadian", "pause_on_weekends": false, 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"ranked": true }, { "id": 37500, "name": "UoY Go Society - 2nd Tournament", "director": { "id": 460488, "username": "CJBGO", "country": "150", "icon": "https://user-uploads.online-go.com/07a5e659a4223668034b1175b52eb04f-64.png", "ratings": { "version": 5, "overall": { "rating": 1134.1175988475043, "deviation": 64.45863150577209, "volatility": 0.0598408383720753 } }, "ranking": 17.830405925005458, "professional": false, "ui_class": "" }, "description": "Hi everyone", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88320, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 172800, "max_time": 172800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "group": { "id": 1814, "name": "University of York Go Society", "summary": "University of York (UK) Go Society", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 28, "icon": "https://user-uploads.online-go.com/acf03417e40cfdfd51fc47278d423a4c-64.png" }, "auto_start_on_max": false, "time_start": "2018-05-22T17:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2018-05-30T09:25:34.079773Z", "ended": "2018-09-07T08:42:19.866884Z", "start_waiting": "2018-05-30T09:25:33.793028Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/acf03417e40cfdfd51fc47278d423a4c-15.png", "player_count": 4, "ranked": true }, { "id": 37704, "name": "Correspondence 9x9 RoundRobin 2018-05-30 01:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20251227T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2025-12-27T19:00:11.693053Z", "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", 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2", "director": { "id": 540864, "username": "tscott84b34e226fe94786", "country": "un", "icon": "https://secure.gravatar.com/avatar/79fb712ce94427fb6f2ed7c78234342d?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1500.0, "deviation": 350.0, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Ancient Games 2", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 32, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 180, "max_time": 1200, "time_increment": 30, "speed": "live" }, "is_open": true, "exclude_provisional": false, "group": { "id": 2545, "name": "Wright Charter", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 1, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2018-05-29T22:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-05-29T21:12:26.390233Z", "ended": "2018-05-29T21:39:33.730019Z", "start_waiting": "2018-05-29T21:12:26.098986Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 2, "ranked": true }, { "id": 37706, "name": "WCS Ancient Games", "director": { "id": 540864, "username": "tscott84b34e226fe94786", "country": "un", "icon": "https://secure.gravatar.com/avatar/79fb712ce94427fb6f2ed7c78234342d?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1500.0, "deviation": 350.0, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Ancient Games Class", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 38, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 1200, "max_time": 1200, "time_increment": 25, "speed": "live" }, "is_open": true, "exclude_provisional": false, "group": { "id": 2545, "name": "Wright Charter", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 1, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2018-05-29T21:01:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-05-29T21:00:00.169701Z", "ended": "2018-05-29T22:05:22.354117Z", "start_waiting": "2018-05-29T20:59:59.142517Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 9, "ranked": true }, { "id": 37703, "name": "Live 9x9 Double Elimination Tournament 2018-05-29 18:30", "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:20251229T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2025-12-29T18:00:45.446230Z", "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": "2025-12-29T22:00:00Z", "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": "2018-05-29T18:30:38.121160Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2018-05-29T18:30:40.614021Z", "ended": "2018-05-29T20:02:20.492239Z", "start_waiting": "2018-05-29T18:30:40.027740Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 9, "ranked": true }, { "id": 37540, "name": "Российский турнир", "director": { "id": 426919, "username": "Сергей 71", "country": "ru", "icon": "https://user-uploads.online-go.com/f8636f9cecf79d4fbebddba346b2f0fd-64.png", "ratings": { "version": 5, "overall": { "rating": 1811.4644937992523, "deviation": 61.98879503967162, "volatility": 0.05991996180965089 } }, "ranking": 28.671104780582176, "professional": false, "ui_class": "" }, "description": "Приглашаем всех российских игроков", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 515, "name": "OGS Title Tournaments", "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? 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"started": "2018-05-29T01:00:36.767819Z", "ended": "2018-07-16T19:35:43.003279Z", "start_waiting": "2018-05-29T01:00:36.458960Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 4, "ranked": true }, { "id": 37472, "name": "Fast Correspondence – June 2018 (A)", "director": { "id": 784, "username": "mlopezviedma", "country": "ar", "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png", "ratings": { "version": 5, "overall": { "rating": 1588.1543621874353, "deviation": 62.71960340021569, "volatility": 0.05973071323930564 } }, "ranking": 25.625419774662372, "professional": false, "ui_class": "supporter moderator" }, "description": "Correspondence but fast paced tournament.\n\n**Please, avoid delaying your games using the vacation feature. 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