Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5269
{ "count": 60113, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5270", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5268", "results": [ { "id": 77991, "name": "20 Lines: Even Board Sizes Series", "director": { "id": 109488, "username": "DVbS78rkR7NVe", "country": "un", "icon": "https://secure.gravatar.com/avatar/e379f98cdecd568bf2a9c1deb14ea283?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2026.1476299885521, "deviation": 66.05609734432652, "volatility": 0.059874270189468615 } }, "ranking": 31.26391960044579, "professional": false, "ui_class": "" }, "description": "Join the group for more cat tournaments ^__^", "schedule": null, "title": null, "tournament_type": "swiss", "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": 6124, "name": "Leopard's Resting Tree", "summary": "A little corner for cat tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 311, "icon": "https://user-uploads.online-go.com/7198cc33b9da0045cda9721b7fc8e4f2-64.png" }, "auto_start_on_max": false, "time_start": "2021-08-08T01:00:00Z", "players_start": 2, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2021-08-08T01:00:40.045165Z", "ended": "2022-10-03T15:09:48.292963Z", "start_waiting": "2021-08-08T01:00:39.794805Z", "board_size": 20, "active_round": null, "icon": "https://user-uploads.online-go.com/7198cc33b9da0045cda9721b7fc8e4f2-15.png", "player_count": 15, "ranked": true }, { "id": 10841, "name": "Blitz 13x13 Swiss Tournament 2015-09-17 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:20260703T190000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-07-03T19:00:18.199116Z", "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": "2026-07-03T23:00:00Z", "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": "2015-09-17T11:30:25.656675Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-09-17T11:30:27.352154Z", "ended": "2015-09-17T12:21:02.060090Z", "start_waiting": "2015-09-17T11:30:27.234107Z", "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": 1149, "name": "diemichi's mini-tournament", "director": { "id": 30856, "username": "diemichi", "country": "un", "icon": "https://secure.gravatar.com/avatar/f0581d943a241c2ecc1e0b951a5ce747?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1307.5848766922286, "deviation": 60.53840278546364, "volatility": 0.05984725672837242 } }, "ranking": 21.125274296306767, "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": 385, "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": "2010-04-25T09:55:28Z", "ended": "2010-04-25T07:55:28Z", "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": 1150, "name": "Andreas' 39th 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": 172800, "time_control_parameters": { "time_control": "simple", "per_move": 172800 }, "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": 385, "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": 4, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2010-07-19T22:13:57Z", "ended": "2010-07-19T20:13:57Z", "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": 72331, "name": "Honinbo Nines Title Tournament 2021", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1975.9676335815052, "deviation": 67.56741984880934, "volatility": 0.0601620344250661 } }, "ranking": 30.683362709131018, "professional": false, "ui_class": "supporter" }, "description": "Honinbo Nines Title Tournament 2021\n\nTitle Holder: \n<a style=\"color:red\" href='https://online-go.com/player/25584/'>arfn6 [Nines Honinbo] x1</a>\n\nHall of Fame:\n<table style=\"text-align:center;border:1px solid\">\n<tr>\n\t<th style=\"border:1px solid\">Year</th>\n\t<th style=\"border:1px solid\">Title Match Winner</th>\n\t<th style=\"border:1px solid\">Score</th>\n\t<th style=\"border:1px solid\">Title Match Runner-up</th>\n\t<th style=\"border:1px solid\">\n\tTitle Tournament Winner\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_9.png' alt='Gold'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament Runner-up\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_9.png' alt='Silver'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament 3rd Place\n\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_9.png' alt='Bronze'></img>\n\t</th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2371'>2007</a></td>\n\t<td><b>Spandam</b></td><td></td><td></td>\n\t<td><b>Spandam (2d)</b></td><td>willbrooks (2d)</td><td>redacted (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2388'>2008</a></td>\n\t<td><b>KlausP</b></td><td>∗</td><td>Spandam</td>\n\t<td><b>KlausP (3d)</b></td><td>KyuT (4d)</td><td>Akimoon (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2404'>2009</a></td>\n\t<td><b>KyuT</b></td><td>3-2</td><td>KlausP</td>\n\t<td><b>KyuT (4d)</b></td><td>KlausP (3d)</td><td>phoward (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2421'>2010</a></td>\n\t<td><b>KlausP</b></td><td>∗</td><td>KyuT</td>\n\t<td><b>KlausP (3d)</b></td><td>Highwayman (1d)</td><td>kennabee (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2436'>2011</a></td>\n\t<td><b>vitality</b></td><td>∗</td><td>KlausP</td>\n\t<td><b>vitality (5d)</b></td><td>KlausP (3d)</td><td>joachim (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2458'>2012</a></td>\n\t<td><b>vitality</b></td><td>4-1</td><td>FromHell</td>\n\t<td><b>vitality (5d)</b></td><td>FromHell (1d)</td><td>Wloczykij (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2478'>2013</a></td>\n\t<td><b>vitality</b></td><td>3-2</td><td>gamesorry</td>\n\t<td><b>gamesorry (2d)</b></td><td>nrx (3d)</td><td>devariot (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2496'>2014</a></td>\n\t<td><b>vitality</b></td><td>4-1</td><td>devariot</td>\n\t<td><b>devariot (2k)</b></td><td>nrx (3d)</td><td>drmwc (6d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/4812'>2015</a></td>\n\t<td><b>Sadaharu</b></td><td>3-2</td><td>vitality</td>\n\t<td><b>Ragnar Danneshild (1d)</b></td><td>Sadaharu (5d)</td><td>vinceuji (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/15377'>2016</a></td>\n\t<td><b>Sadaharu</b></td><td>5-0</td><td>meteor</td>\n\t<td><b>meteor (2k)</b></td><td>gamesorry (3d)</td><td>Jeno61 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/25232'>2017</a></td>\n\t<td><b>Sadaharu</b></td><td>5-0</td><td>gamesorry</td>\n\t<td><b>FanSlim (9d)</b></td><td>nixent (3d)</td><td>gamesorry (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/35082'>2018</a></td>\n\t<td><b>arfn6</b></td><td><a href='https://online-go.com/tournament/67411'>∗</a></td><td>Baklan</td>\n\t<td><b>Baklan (8d)</b></td><td>Sadaharu (9d)</td><td>arfn6 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/45529'>2019</a></td>\n\t<td>TBA: arfn6</td><td>vs</td><td>Sadaharu</td>\n\t<td><b>Sadaharu (9d)</b></td><td>Baklan (5d)</td><td>Borealiz (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/57118'>2020</a></td>\n\t<td></td><td></td><td></td>\n\t<td><b>Agzam [6d]</b></td><td>mark5000 [6d]</td><td>yangzhou24 [4d]</td>\n</tr>\n</table>\n\n∗ means the games were finished by timeout or retirement. Old OGS ranks were displayed for tournaments before 2017.\n\nNotes: \n- The starting time on this page is an approximation and subject to change. It will be finalized once the announcement is posted in <a href='https://online-go.com/group/515'>OGS Title Tournaments</a> group and <a href='https://forums.online-go.com/t/title-tournament-announcements/10408/'>Title Tournament Announcement</a>.\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 93120, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "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": 2991, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2021-04-16T20:00:00Z", "players_start": 150, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-04-18T11:47:45.859592Z", "ended": "2022-02-13T09:57:13.132254Z", "start_waiting": "2021-04-18T11:47:32.735002Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 150, "ranked": true }, { "id": 78539, "name": "30 Entrenamiento de go, agosto 2021", "director": { "id": 607938, "username": "kido.go.baduk", "country": "mx", "icon": "https://user-uploads.online-go.com/83ceb7eea12991c2d610032107296fa7-64.png", "ratings": { "version": 5, "overall": { "rating": 733.7386350417765, "deviation": 67.58441146641512, "volatility": 0.06059085558486428 } }, "ranking": 7.749569442835256, "professional": false, "ui_class": "" }, "description": "https://fb.watch/7dolYsguIV/", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 30, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 900, "period_time": 20, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4974, "name": "Taller de Go-Biblioteca de México", "summary": "Torneos todos los sábados a las 17:30 hrs (Ciudad de México)", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 236, "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-64.png" }, "auto_start_on_max": false, "time_start": "2021-08-07T22:30:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2021-08-07T22:30:33.915669Z", "ended": "2021-08-08T00:18:53.869284Z", "start_waiting": "2021-08-07T22:30:33.611759Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-15.png", "player_count": 11, "ranked": true }, { "id": 89140, "name": "Live 19x19 Swiss Tournament 2022-04-24 16:30", "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": 4, "name": "Live 19x19 Swiss Tournament", "rrule": "DTSTART:20260703T160000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-07-03T16:00:17.841843Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 600, "periods": 3 }, "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": "2026-07-03T20:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 36, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 600, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2022-04-24T16:30:51.310432Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2022-04-24T16:30:52.522741Z", "ended": "2022-04-24T18:49:49.024311Z", "start_waiting": "2022-04-24T16:30:52.355580Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true }, { "id": 78823, "name": "Live 19x19 Swiss Tournament 2021-08-15 16:30", "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": 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