Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-player_count&page=2237
{ "count": 59449, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-player_count&page=2238", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-player_count&page=2236", "results": [ { "id": 61642, "name": "Blitz 19x19 Elimination Tournament 2020-06-08 09:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260424T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-04-24T01:00:17.143571Z", 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"DTSTART:20260424T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-04-24T01:00:17.143571Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-04-24T05:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2020-06-08T21:30:42.175229Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2020-06-08T21:31:41.030302Z", "ended": "2020-06-08T22:07:29.688143Z", "start_waiting": "2020-06-08T21:31:40.142092Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 7, "ranked": true }, { "id": 61734, "name": "Live 9x9 Double Elimination Tournament 2020-06-10 06:30", "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:20260424T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-24T02:00:17.152876Z", "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": "2026-04-24T06:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", 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65.88111689435804, "volatility": 0.06003268569255853 } }, "ranking": 27.533569588846934, "professional": false, "ui_class": "" }, "description": "Taiwan is a country!", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 2419200, "time_control_parameters": { "time_control": "simple", "speed": "correspondence", "system": "simple", "pause_on_weekends": false, "per_move": 2419200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 1144, "name": "Taiwanese", "summary": "Mostly Taiwanese!\n\nlet us know if you want to be admin. Please take great care, thank you!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 181, "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-64.png" }, "auto_start_on_max": false, "time_start": "2019-07-01T07:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2019-07-01T07:00:33.456993Z", "ended": "2020-06-10T11:23:45.288191Z", "start_waiting": "2019-07-01T07:00:30.112225Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-15.png", "player_count": 7, "ranked": true }, { "id": 61752, "name": "First 9x9 tourny for the universe.", "director": { "id": 622823, "username": "MrSuth", "country": "gb", "icon": "https://user-uploads.online-go.com/a67b4fec70f832da8e714ed1dea0d839-64.png", "ratings": { "version": 5, "overall": { "rating": 1390.6809633316159, "deviation": 62.7562486869202, "volatility": 0.05999371942931435 } }, "ranking": 22.55158512248858, "professional": false, "ui_class": "supporter" }, "description": "9x9 let's go.", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 12, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 240, "period_time": 10, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5519, "name": "BSC GO", "summary": "", "require_invitation": true, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 10, "icon": "https://user-uploads.online-go.com/ef9477f87ad4d190ffab53eba8347ec3-64.png" }, "auto_start_on_max": false, "time_start": "2020-06-10T16:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2020-06-10T15:09:41.374704Z", "ended": "2020-06-10T15:50:45.309360Z", "start_waiting": "2020-06-10T15:09:40.949692Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/ef9477f87ad4d190ffab53eba8347ec3-15.png", "player_count": 7, "ranked": true }, { "id": 59656, "name": "コスミ支援杯Dリーグ", "director": { "id": 208723, "username": "yukiyanagi", "country": "un", "icon": "https://user-uploads.online-go.com/2afdb8b50386a311ffccf50028091b98-64.png", "ratings": { "version": 5, "overall": { "rating": 2169.0233825342757, "deviation": 64.63869195529914, "volatility": 0.060056810858867514 } }, "ranking": 32.84137775992442, "professional": false, "ui_class": "" }, "description": "参加者(敬称略)\nみっちー、shimada65、masao15、jelly2121、tealight、あすか瑞穂、Tsunetako", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 46080, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 43200, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5264, "name": "コスミ支援杯", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 40, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-64.png" }, "auto_start_on_max": true, "time_start": "2020-04-28T09:00:00Z", "players_start": 7, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2020-04-27T06:32:10.292066Z", "ended": "2020-06-10T22:05:14.907489Z", "start_waiting": "2020-04-27T06:32:08.778619Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-15.png", "player_count": 7, "ranked": true }, { "id": 61484, "name": "Manchester Go Club - Rapid 19x19 Tournament #4", "director": { "id": 206311, "username": "taiyaki 鯛焼き", "country": "jp", "icon": "https://user-uploads.online-go.com/bf298249efe61246416591f25414b80c-64.png", "ratings": { "version": 5, "overall": { "rating": 1867.1000057404892, "deviation": 65.45025222666547, "volatility": 0.060005676838603444 } }, "ranking": 29.37141073911507, "professional": false, "ui_class": "supporter" }, "description": "Welcome to the 4th Manchester Go Club Rapid 19x19 Tournament. Please make sure to log in to OGS and open this page in your browser before 8:15 PM GMT+1 to be included in the draw!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 26, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 20, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4609, "name": "Manchester Go Club", "summary": "A group for players living in or connected to Manchester, UK. Go friends from around the world are also welcome to join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 104, "icon": "https://user-uploads.online-go.com/765ff76c1663dd5f81156a7cd3befddd-64.png" }, "auto_start_on_max": false, "time_start": "2020-06-11T19:20:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2020-06-11T19:20:03.921744Z", "ended": "2020-06-11T21:02:54.315873Z", "start_waiting": "2020-06-11T19:20:03.315818Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/765ff76c1663dd5f81156a7cd3befddd-15.png", "player_count": 7, "ranked": true }, { "id": 59658, "name": "コスミ支援杯Cリーグ", "director": { "id": 552992, "username": "rui123", "country": "un", "icon": "https://user-uploads.online-go.com/5d3c52f52a951dcabfa6b23424912faf-64.png", "ratings": { "version": 5, "overall": { "rating": 1694.125789232745, "deviation": 62.77875217508912, "volatility": 0.0599848803445997 } }, "ranking": 27.12077748884781, "professional": false, "ui_class": "" }, "description": "参加者（敬省略）\noyaji62、はっしー、rui123、saki.、waka taka、aowasabi、アッキー", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 46080, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 43200, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5264, "name": "コスミ支援杯", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 40, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-64.png" }, "auto_start_on_max": true, "time_start": "2020-04-28T09:00:00Z", "players_start": 7, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2020-04-26T20:06:26.969984Z", "ended": "2020-06-13T09:39:21.674406Z", "start_waiting": "2020-04-26T20:06:25.715061Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-15.png", "player_count": 7, "ranked": true }, { "id": 58186, "name": "24-25ks Tournament", "director": { "id": 731399, "username": "Cool Person", "country": "us", "icon": "https://user-uploads.online-go.com/d4d690ca415d15d2331919c86a651956-64.png", "ratings": { "version": 5, "overall": { "rating": 623.7169842830638, "deviation": 72.85794169420086, "volatility": 0.05988984500873753 } }, "ranking": 5, "professional": false, "ui_class": "" }, "description": "This is a tournament for 25 and 24ks and provisional players.", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "chinese", "time_per_move": 88320, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 86400, "initial_time": 172800, "max_time": 432000 }, "is_open": true, "exclude_provisional": false, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 17914, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2020-03-31T19:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 6, "analysis_enabled": true, "exclusivity": "open", "started": "2020-03-31T19:00:09.154294Z", "ended": "2020-06-13T14:39:51.734186Z", "start_waiting": "2020-03-31T19:00:08.451945Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 7, "ranked": true }, { "id": 59659, "name": "コスミ支援杯Bリーグ", "director": { "id": 552992, "username": "rui123", "country": "un", "icon": "https://user-uploads.online-go.com/5d3c52f52a951dcabfa6b23424912faf-64.png", "ratings": { "version": 5, "overall": { "rating": 1694.125789232745, "deviation": 62.77875217508912, "volatility": 0.0599848803445997 } }, "ranking": 27.12077748884781, "professional": false, "ui_class": "" }, "description": "ken12345、おもち、KG1848、mirup10000、kai_pohe_、morikazu、himari", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 46080, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 43200, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5264, "name": "コスミ支援杯", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 40, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-64.png" }, "auto_start_on_max": true, "time_start": "2020-04-28T09:00:00Z", "players_start": 7, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2020-04-26T17:15:28.791011Z", "ended": "2020-06-14T02:28:40.951224Z", "start_waiting": "2020-04-26T17:15:27.291835Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/2fa8befc1cebe66cdb520523a74a86d6-15.png", "player_count": 7, "ranked": true } ] }
