Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1066
{ "count": 60483, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1067", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1065", "results": [ { "id": 142524, "name": "Correspondence 13x13 RoundRobin 2026-07-25 19:00", "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 Site-wide Tournament", "schedule": { "id": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260802T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-08-02T19:00:16.841833Z", "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": "2026-08-05T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 90782, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2026-07-25T19:00:53.803390Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2026-07-25T19:01:53.569006Z", "ended": null, "start_waiting": "2026-07-25T19:01:53.203364Z", "board_size": 13, "active_round": 1, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 10, "ranked": true }, { "id": 51517, "name": "Fast Cor. 9x9 10player R-Robin. Starts when full. Sep'19fB", "director": { "id": 497519, "username": "Kosh-retired", "country": "_Lord_Howe_Island", "icon": "https://secure.gravatar.com/avatar/39dc5f9ee81b8243d315c8c729844456?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1574.954785564748, "deviation": 61.40997215047312, "volatility": 0.060088015249815864 } }, "ranking": 25.432209892698047, "professional": false, "ui_class": "" }, "description": "---\n- STARTS WHEN FULL & Does NOT pause on the weekend.\n\n- Just one round. Ten players, nine games, Chinese Rules/Scoring.\n\n- If this suits you then, Bonne Partie. :)\n\n- This is a '**FAST** Correspondence Tournament'. Please avoid delaying your games using the Vacation feature or Pause. Any participant using Vacation or Pause may be disqualified (and forfeit unfinished games) at the discretion of the Tournament Director.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 45120, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 43200, "initial_time": 172800, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 508, "name": "Fast Correspondence", "summary": "Tournaments for people who like to play quick correspondence games.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 832, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png" }, "auto_start_on_max": true, "time_start": "2019-09-09T12:58:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2019-09-07T19:25:28.292221Z", "ended": "2019-09-25T18:41:19.951314Z", "start_waiting": "2019-09-07T19:25:21.731720Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png", "player_count": 10, "ranked": true }, { "id": 106205, "name": "Correspondence 9x9 RoundRobin 2023-08-08 19:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260731T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-07-31T19:00:16.465774Z", "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", "group_size": "3", "maximum_players": 10 }, "next_run": "2026-08-03T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2023-08-08T19:00:55.375223Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2023-08-08T19:01:54.681594Z", "ended": "2023-08-28T03:40:00.102974Z", "start_waiting": "2023-08-08T19:01:54.590573Z", "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": 100937, "name": "20th Kuksu Nines Title Match - Board 1", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1964.2396119800687, "deviation": 67.37318091457364, "volatility": 0.06015596991448933 } }, "ranking": 30.545550414012258, "professional": false, "ui_class": "supporter" }, "description": "<!--\n20th Kuksu Nines Title Match - Board 1\n-->\n\nTitle Holder: \n<a style=\"color:purple\" href='https://online-go.com/user/view/1044/'>drmwc [Nines Kuksu] x2</a>\n\n<table style=\"text-align:center;empty-cells:hide;table-layout:fixed;border:1px solid\">\n<tr>\n\t<td style=\"text-align:center\"><b>Edition</b></td>\n\t<td style=\"text-align:center\"><b>Title</b></td>\n\t<td style=\"text-align:center\"><b>Class</b></td>\n\t<td style=\"text-align:center\"><b>Year</b></td>\n\t<td style=\"text-align:center\"><b>Player 1</b></td>\n\t<td style=\"text-align:center\"><b>Player 2</b></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Matches</b></td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td>20th</td>\n\t<td style=\"color:purple\">Kuksu</td>\n\t<td>Nines</td>\n\t<td>2020</td>\n\t<td><a style=\"color:purple\" href='https://online-go.com/user/view/1044/'>drmwc [Nines Kuksu]</a></td>\n\t<td><a href='https://online-go.com/player/40318/'>gamesorry [3d]</a></td>\n\t<td><a href='https://online-go.com/tournament/100937'>Board 1</a></td>\n\t<td><a href='https://online-go.com/tournament/100938'>Board 2</a></td>\n\t<td><a href='https://online-go.com/tournament/100939'>Board 3</a></td>\n\t<td><a href='https://online-go.com/tournament/100940'>Board 4</a></td>\n\t<td><a href='https://online-go.com/tournament/100941'>Board 5</a></td>\n</tr>\n</table>\n\nTitle Tournament: <a href='https://online-go.com/tournament/51835'>20th Kuksu Nines Title Tournament</a>\n\nNote:\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "korean", "time_per_move": 107733, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 604800, "max_time": 604800 }, "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? Join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 3006, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2023-05-07T07:24:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2023-05-07T07:24:58.693081Z", "ended": "2023-07-17T09:55:50.898782Z", "start_waiting": "2023-05-07T07:24:58.636547Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 2, "ranked": true }, { "id": 100938, "name": "20th Kuksu Nines Title Match - Board 2", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1964.2396119800687, "deviation": 67.37318091457364, "volatility": 0.06015596991448933 } }, "ranking": 30.545550414012258, "professional": false, "ui_class": "supporter" }, "description": "<!--\n20th Kuksu Nines Title Match - Board 1\n-->\n\nTitle Holder: \n<a style=\"color:purple\" href='https://online-go.com/user/view/1044/'>drmwc [Nines Kuksu] x2</a>\n\n<table style=\"text-align:center;empty-cells:hide;table-layout:fixed;border:1px solid\">\n<tr>\n\t<td style=\"text-align:center\"><b>Edition</b></td>\n\t<td style=\"text-align:center\"><b>Title</b></td>\n\t<td style=\"text-align:center\"><b>Class</b></td>\n\t<td style=\"text-align:center\"><b>Year</b></td>\n\t<td style=\"text-align:center\"><b>Player 1</b></td>\n\t<td style=\"text-align:center\"><b>Player 2</b></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Matches</b></td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td>20th</td>\n\t<td style=\"color:purple\">Kuksu</td>\n\t<td>Nines</td>\n\t<td>2020</td>\n\t<td><a style=\"color:purple\" href='https://online-go.com/user/view/1044/'>drmwc [Nines Kuksu]</a></td>\n\t<td><a href='https://online-go.com/player/40318/'>gamesorry [3d]</a></td>\n\t<td><a href='https://online-go.com/game/view/53450326'>Board 1</a></td>\n\t<td><a href='https://online-go.com/tournament/100938'>Board 2</a></td>\n\t<td><a href='https://online-go.com/tournament/100939'>Board 3</a></td>\n\t<td><a href='https://online-go.com/tournament/100940'>Board 4</a></td>\n\t<td><a href='https://online-go.com/tournament/100941'>Board 5</a></td>\n</tr>\n</table>\n\nTitle Tournament: <a href='https://online-go.com/tournament/51835'>20th Kuksu Nines Title Tournament</a>\n\nNote:\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "korean", "time_per_move": 107733, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 604800, "max_time": 604800 }, "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? Join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 3006, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2023-05-07T07:26:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2023-05-07T07:27:03.183145Z", "ended": "2023-07-17T08:01:07.919555Z", "start_waiting": "2023-05-07T07:27:03.132808Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 2, "ranked": true }, { "id": 105658, "name": "Kranj 31", "director": { "id": 134125, "username": "mitava", "country": "at", "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png", "ratings": { "version": 5, "overall": { "rating": 776.0568204650347, "deviation": 65.1944237557439, "volatility": 0.05993216649471857 } }, "ranking": 9.047656096247819, "professional": false, "ui_class": "" }, "description": "19x19", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "correspondence", "pause_on_weekends": true, "main_time": 259200, "period_time": 86400, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 374, "name": "Slovenija", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 55, "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-64.png" }, "auto_start_on_max": true, "time_start": "2023-07-24T15:00:00Z", "players_start": 3, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 12, "max_ranking": 17, "analysis_enabled": true, "exclusivity": "open", "started": "2023-07-24T13:23:05.537276Z", "ended": "2023-09-25T21:26:44.825611Z", "start_waiting": "2023-07-24T13:23:04.874335Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png", "player_count": 10, "ranked": true }, { "id": 137227, "name": "Just a random tournament - Come and join if you'd like to", "director": { "id": 1926370, "username": "kylerwee02", "country": "un", "icon": "https://secure.gravatar.com/avatar/3da73acd9ff69216ba7db37f152de321?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 691.7658511507257, "deviation": 185.75061921400507, "volatility": 0.06000226571024618 } }, "ranking": 6.385910609260798, "professional": false, "ui_class": "provisional" }, "description": "Just a random tournament. Provisional players are invited (because I am one). Hope you don't mind! Come and join if you'd like to! This is a 9x9 tournament. Have fun! ~Anonymous Guy (if u know who i am i am a random guy that u prob dont know) š", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 2419200, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": false, "per_move": 2419200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 16022, "name": "ChatRoom404", "summary": "This is just a group. Do whatever you like here! It is also alright if you want to just join this group and chat. ~Destroyer802 š", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 19, "icon": "https://user-uploads.online-go.com/8b1bbf17216ac7c771cfc31ad15f297a-64.png" }, "auto_start_on_max": false, "time_start": "2026-03-01T09:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-03-01T09:00:41.596755Z", "ended": "2026-07-06T07:38:27.938578Z", "start_waiting": "2026-03-01T09:00:40.789768Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/8b1bbf17216ac7c771cfc31ad15f297a-15.png", "player_count": 10, "ranked": true }, { "id": 86577, "name": "3 -> ē¾ ę£é 4 -> ę„čå®", "director": { "id": 818416, "username": "å³ē¢åøå", "country": "un", "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png", "ratings": { "version": 5, "overall": { "rating": 1898.3468207617877, "deviation": 71.28817954667363, "volatility": 0.06041644550084839 } }, "ranking": 29.755630942351214, "professional": false, "ui_class": "" }, "description": "3 -> ē¾ ę£é\n4 -> ę„čå®", "schedule": null, "title": null, "tournament_type": "elimination", "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": 2 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7531, "name": "å³ē¢ Cē", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 87, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2022-02-26T08:00:00Z", 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