Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=board_size&page=3188
{ "count": 60946, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=3189", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=3187", "results": [ { "id": 6640, "name": "Białystok 13x13 April 2015", "director": { "id": 66704, "username": "mita va", "country": "at", "icon": "https://user-uploads.online-go.com/7a4d02532a68fa46afdbca6ba63e594a-64.png", "ratings": { "version": 5, "overall": { "rating": 739.6650941704277, "deviation": 70.66049949180731, "volatility": 0.05912752115903937 } }, "ranking": 7.935802538372781, "professional": false, "ui_class": "supporter" }, "description": "cfgzt jr", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 31, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 120, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 476, "name": "Zbiegłe kurczaki", "summary": "Group for players from Kurnik / PlayOK", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 56, "icon": "https://user-uploads.online-go.com/daca8770a5adf92b79ec6207d56ba4a2-64.png" }, "auto_start_on_max": false, "time_start": "2015-04-15T17:35:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 7, "max_ranking": 14, "analysis_enabled": false, "exclusivity": "open", "started": "2015-04-15T17:35:00.778738Z", "ended": "2015-04-15T17:46:04.928560Z", "start_waiting": "2015-04-15T17:35:00.644534Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/daca8770a5adf92b79ec6207d56ba4a2-15.png", "player_count": 4, "ranked": true }, { "id": 122172, "name": "black stone #02", "director": { "id": 635044, "username": "15.03", "country": "jp", "icon": "https://user-uploads.online-go.com/c95b24310a554e4ebac113077793f721-64.png", "ratings": { "version": 5, "overall": { "rating": 1788.2664198912823, "deviation": 76.33306490815488, "volatility": 0.060156522190184115 } }, "ranking": 28.372725341439025, "professional": false, "ui_class": "" }, "description": "ทัวร์นาเมนท์ หมากล้อม black stone 02", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 25, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 900, "period_time": 10, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 14619, "name": "black stone go", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": true, "member_count": 75, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2024-11-14T12:30:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2024-11-14T12:30:00.693468Z", "ended": "2024-11-14T13:49:06.661233Z", "start_waiting": "2024-11-14T12:30:00.571233Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 71645, "name": "2月20日 蔡得恩 VS 張諾希", "director": { "id": 818416, "username": "傳碁學園", "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": "2月20日 蔡得恩 VS 張諾希", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 18, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 300, "period_time": 15, "periods": 2 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7530, "name": "傳碁 D班", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 71, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2021-02-20T03:00:00Z", "players_start": 2, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2021-02-20T02:45:02.272943Z", "ended": "2021-02-20T02:59:41.835334Z", "start_waiting": "2021-02-20T02:45:02.155702Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 2, "ranked": true }, { "id": 64532, "name": "Ladder Legend 13x13 - 2021", "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": "<h3>Title Holder: <a style=\"color:fuchsia\" href=\"https://online-go.com/player/43936\" rel=\"noopener\">Sadaharu [Treizes Ladder Legend]</a></h3>\n\n### Hall of Fame:\n\n---\n\n<div class=\"Card \"><div class=\"about-container\"><div class=\"about-markdown\"><div><table>\n<thead>\n<tr>\n<th style=\"border:3px solid;text-align:center;\">Year</th>\n<th style=\"border:3px solid;text-align:center;\">Tournament<img src=\"http://i.imgur.com/kVzSrke.png/4.2/img/trophies/gold_title_13.png\" alt=\"Gold13\">Winner</th>\n<th style=\"border:3px solid;text-align:center;\">Tournament<img src=\"http://i.imgur.com/ta7bMkV.png/4.2/img/trophies/silver_title_13.png\" alt=\"Silv13\">Runner-up</th>\n<th style=\"border:3px solid;text-align:center;\">Tournament<img src=\"http://i.imgur.com/HtQoWtV.png/4.2/img/trophies/bronze_title_13.png\" alt=\"Brnz13\"><img src=\"http://i.imgur.com/HtQoWtV.png/4.2/img/trophies/bronze_title_13.png\" alt=\"Brnz13\">Semi-finalists</th>\n</tr>\n<tr>\n<td style=\"border:3px solid;text-align:center;\"><a href=\"https://online-go.com/tournament/46932\" rel=\"noopener\">2020</a></td>\n<td style=\"border:1px solid;text-align:center;\"><a href=\"https://online-go.com/player/43936\" rel=\"noopener\">Sadaharu</a></td>\n<td style=\"border:1px solid;text-align:center;\"><a href=\"https://online-go.com/player/624668\" rel=\"noopener\">earlgreyhot</a></td>\n<td style=\"border:1px solid;text-align:center;\"><a href=\"https://online-go.com/player/515602\" rel=\"noopener\">e577901696</a> & <a href=\"https://online-go.com/player/589692\" rel=\"noopener\">Utaha</a></td>\n</tr>\n</tbody>\n</table></div></div></div></div>\n\n---\n\nNote: There are no post-tournament 'Title Matches'. Anyone wishing to claim successive titles must qualify and compete normally. Bots are ineligible for this tournament and AI assistance is NOT allowed as per the [OGS terms of service](https://online-go.com/docs/terms-of-service).\n\n### Overview:\nThis tournament uses the [Site 13x13 Ladder](https://online-go.com/ladder/314) for it's preliminaries.\n\nTo have a chance of competing in this tournament you need to be in the top 30 of the Ladder a week before the tournament begins. To guarantee entry, you need to be in the top 8 (see below).\n\nClock settings and rules are the same as for the ladder.\n\n### Qualifying / Invitational Process:\nOn the 7th of January 2021, I will take a snapshot of the ladder and send invitations to the top 8 players. Each day thereafter, I will send additional invitations equal to the number of vacancies+1 until the tournament is full, working down the snapshot-list no further than position 30. \nIf you receive an invitation, decide quickly. The top eight will get ~24hrs to decide but thereafter the additional invitees could miss out as those above make late acceptances. \n\nPlease note that if you close your invitation without accepting or declining, then a bug prevents me from reissuing it and you will need to pm me if you wish to join.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 86400, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": false, "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": 3017, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2021-01-14T09:04:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2021-01-14T09:04:43.497314Z", "ended": "2021-05-08T00:09:03.502430Z", "start_waiting": "2021-01-14T09:04:43.204363Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 8, "ranked": true }, { "id": 387, "name": "labrat's mini-tournament of chaos", "director": { "id": 15869, "username": "labrat", "country": "gb", "icon": "https://user-uploads.online-go.com/be27728d54d30a40bc7c9c1c917a057c-64.png", "ratings": { "version": 5, "overall": { "rating": 1125.9368056031701, "deviation": 67.9775299011423, "volatility": 0.0599970801680335 } }, "ranking": 17.6628115605704, "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": 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": 386, "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": 9, "analysis_enabled": false, "exclusivity": "open", "started": "2007-12-14T09:06:00Z", "ended": "2008-02-06T22:46:00Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 88644, "name": "Blitz 13x13 Swiss Tournament 2022-04-13 11:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260905T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-09-05T23:00:32.974879Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-09-06T03:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2022-04-13T11:30:12.358002Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2022-04-13T11:32:14.005632Z", "ended": "2022-04-13T11:57:44.965887Z", "start_waiting": "2022-04-13T11:32:13.865589Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 7, "ranked": true }, { "id": 141457, "name": "22 june", "director": { "id": 2037449, "username": "lizettesocias", "country": "un", "icon": "https://secure.gravatar.com/avatar/086edaa4005d822e18070f4fa4601fbc?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 469.00279267769884, "deviation": 177.35754615538428, "volatility": 0.06000560146442458 } }, "ranking": 5, "professional": false, "ui_class": "provisional" }, "description": "practice", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 90782, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 16489, "name": "GO game pma", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 11, "icon": "https://user-uploads.online-go.com/77678d68e561733d8ea03780752b8128-64.png" }, "auto_start_on_max": false, "time_start": "2026-06-21T21:45:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-06-21T21:45:15.877768Z", "ended": "2026-07-05T06:21:27.823457Z", "start_waiting": "2026-06-21T21:45:15.793785Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/77678d68e561733d8ea03780752b8128-15.png", "player_count": 6, "ranked": false }, { "id": 20131, "name": "Blitz 13x13 Swiss Tournament 2016-08-25 15:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260905T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-09-05T23:00:32.974879Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-09-06T03:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-08-25T15:30:51.094491Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-08-25T15:30:54.029777Z", "ended": "2016-08-25T16:04:11.182381Z", "start_waiting": "2016-08-25T15:30:53.067332Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 71530, "name": "Blitz 13x13 Swiss Tournament 2021-02-17 15:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260905T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-09-05T23:00:32.974879Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-09-06T03:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2021-02-17T15:30:50.364436Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-02-17T15:30:51.943275Z", "ended": "2021-02-17T16:27:11.410740Z", "start_waiting": "2021-02-17T15:30:51.796127Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 7, "ranked": true }, { "id": 101801, "name": "13x13 Open D.E. Cup #9", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1369.7563886518221, "deviation": 73.23899345455979, "volatility": 0.06029554692293308 } }, "ranking": 22.200616692370286, "professional": false, "ui_class": "" }, "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 90782, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 12599, "name": "GO Special Tournaments", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 86, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png" }, "auto_start_on_max": true, "time_start": "2023-04-23T20:00:00Z", "players_start": 8, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-04-19T17:06:29.960899Z", "ended": "2024-03-08T06:22:14.523862Z", "start_waiting": "2023-04-19T17:06:29.810883Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png", "player_count": 8, "ranked": true } ] }
