Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-board_size&page=5772
{ "count": 59481, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=5773", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-board_size&page=5771", "results": [ { "id": 498, "name": "Andreas' 6th mini-tournament", "director": { "id": 12608, "username": "Andreas", "country": "un", "icon": "https://secure.gravatar.com/avatar/9391313b744a480fccc4b2ffa6031575?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1708.106347149412, "deviation": 65.43808331330433, "volatility": 0.05994359485799847 } }, "ranking": 27.311035957117518, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS 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"rating": 2057.0418570611128, "deviation": 67.01048225682227, "volatility": 0.06014987055173763 } }, "ranking": 31.614241331664854, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2008-06-12T15:00:30Z", "ended": "2008-06-12T13:00:30Z", "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 104122, "name": "第1回チキチキ小田原組武闘会", "director": { "id": 1366704, "username": "にゃはー", "country": "ag", "icon": "https://user-uploads.online-go.com/709583bf45075a1b87b7670d59dd4d18-64.png", "ratings": { "version": 5, "overall": { "rating": 1103.9567455624215, "deviation": 165.65318331011596, "volatility": 0.05999571957723628 } }, "ranking": 17.206417693434858, "professional": false, "ui_class": "provisional" }, "description": "小田原組武闘派ナンバーワン決定戦!!!!\n激戦を制し栄冠を勝ち取るのは一体か???", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 690133, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 604800, "initial_time": 2419200, "max_time": 2419200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 9121, "name": "翔和学園 囲碁授業", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 119, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2023-08-01T02:00:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2023-08-01T02:00:52.080545Z", "ended": "2023-08-07T02:01:19.144708Z", "start_waiting": "2023-08-01T02:00:51.969720Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 3, "ranked": true }, { "id": 520, "name": "armakuni's MT for armakuni's son: please only <30kyu or very(!) friendly players", "director": { "id": 18384, "username": "armakuni", "country": "de", "icon": "https://secure.gravatar.com/avatar/fce7b36ab11ade0ed704ce60750dcfe2?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1543.66134944842, "deviation": 64.13306590760571, "volatility": 0.059974233649116145 } }, "ranking": 24.96760166217823, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, 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"tournament_type": "mcmahon", "handicap": 0, "rules": "chinese", "time_per_move": 43200, "time_control_parameters": { "time_control": "fischer", "initial_time": 86400, "max_time": 172800, "time_increment": 43200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 5, "analysis_enabled": false, "exclusivity": "open", "started": "2013-11-04T15:00:28.858346Z", "ended": "2013-12-09T20:34:55.164524Z", "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 77, "name": "\"eu\" tornament for best eu player", "director": { "id": 2428, "username": "KibirasLT", "country": "un", "icon": "https://secure.gravatar.com/avatar/520aa175d139f42b1d628f280813ee26?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1329.7901612873698, "deviation": 287.9118629083769, "volatility": 0.05999970883292058 } }, "ranking": 21.515104698201537, "professional": false, "ui_class": "provisional" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 259200, "time_control_parameters": { "time_control": "simple", "per_move": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2006-04-09T15:45:00Z", "ended": "2006-05-04T11:34:00Z", "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 75982, "name": "Live 9x9 Double Elimination Tournament 2021-06-06 02:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260427T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-27T02:00:48.909828Z", "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": "2026-04-27T06:00:00Z", "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": "2021-06-06T02:30:42.694738Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-06-06T02:30:44.059014Z", "ended": "2021-06-06T02:54:00.232729Z", "start_waiting": "2021-06-06T02:30:43.933138Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 4, "ranked": true }, { "id": 129735, "name": "Live 9x9 Double Elimination Tournament 2025-06-22 18:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro", 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"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": "Meijin Nines Title Tournament 2008", "schedule": null, "title": { "id": 2, "name": "Meijin Nines Title Tournament", "holder": { "id": 1044, "username": "drmwc", "country": "gb", "icon": "https://secure.gravatar.com/avatar/1f61006ef42da43763befe7e7a035e80?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2272.793422517538, "deviation": 64.89643165912463, "volatility": 0.05998474082599601 } }, "ranking": 33.92323850181498, "professional": false, "ui_class": "supporter" }, "rules": "japanese", "tournament_type": "s_elimination" }, "tournament_type": "s_elimination", "handicap": 0, 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"started": "2008-07-09T00:56:31Z", "ended": "2008-07-08T22:56:31Z", "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true } ] }
