Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5775
{ "count": 59373, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5776", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=5774", "results": [ { "id": 106134, "name": "September 2023 13x13 B League Correspondence (SDK)", "director": { "id": 1403086, "username": "Porcellio", "country": "un", "icon": "https://secure.gravatar.com/avatar/7b3e8428710cb97ee80c27295c48957d?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1500, "deviation": 350, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Have fun.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 15861, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 14400, "initial_time": 86400, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 11630, "name": "SDK Proving Grounds (Single Digit Kyu)", "summary": "The Official SDK Proving Grounds. This group spawned from the DDK Proving Grounds (Double Digit Kyu) group, & it's popularity. Here, SDK's can play against other SDK's (or Dan players that haven’t established a solid foothold in Dan land yet). If you get s", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 100, "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-64.png" }, "auto_start_on_max": false, "time_start": "2023-09-01T19:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 21, "max_ranking": 24, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-01T19:00:11.605709Z", "ended": "2023-09-24T03:38:59.532712Z", "start_waiting": "2023-09-01T19:00:11.542725Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-15.png", "player_count": 5, "ranked": true }, { "id": 107042, "name": "Live 19x19 Swiss Tournament 2023-09-01 16:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20260417T120000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-04-17T12:00:56.301184Z", "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": "2026-04-17T16:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 35, "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": "2023-09-01T16:30:10.802261Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-01T16:31:18.343391Z", "ended": "2023-09-01T18:01:57.144121Z", "start_waiting": "2023-09-01T16:31:18.200172Z", "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": 107030, "name": "Just play!", "director": { "id": 573117, "username": "Yeou", "country": "ru", "icon": "https://user-uploads.online-go.com/742b9ad278c24788d69739b4b80873f7-64.png", "ratings": { "version": 5, "overall": { "rating": 563.5409239183886, "deviation": 66.97439070633084, "volatility": 0.059951004460742884 } }, "ranking": 5, "professional": false, "ui_class": "" }, "description": "Турнир для начинающих игроков.", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 18684, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 18000, "initial_time": 86400, "max_time": 259200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4425, "name": "Newbie go club", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 5, "icon": "https://user-uploads.online-go.com/742b9ad278c24788d69739b4b80873f7-64.png" }, "auto_start_on_max": true, "time_start": "2023-09-15T11:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 15, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-15T11:00:57.011912Z", "ended": "2023-10-06T13:38:16.589631Z", "start_waiting": "2023-09-15T11:00:56.845579Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/742b9ad278c24788d69739b4b80873f7-15.png", "player_count": 7, "ranked": true }, { "id": 107039, "name": "8th September 2023 Practice match", "director": { "id": 1409982, "username": "Msia Go Academy", "country": "my", "icon": "https://user-uploads.online-go.com/66cfaf13e401c3471975d1144896d477-64.png", "ratings": { "version": 5, "overall": { "rating": 1500, "deviation": 250, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "8th September 2023 Practice match", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "blitz", "pause_on_weekends": false, "total_time": 300 }, "is_open": true, "exclude_provisional": false, "group": { "id": 13455, "name": "Malaysia Go - Study room", "summary": "Malaysia GO 马来西亚围棋棋院", "require_invitation": false, "is_public": false, "admin_only_tournaments": true, "hide_details": false, "member_count": 12, "icon": "https://user-uploads.online-go.com/66cfaf13e401c3471975d1144896d477-64.png" }, "auto_start_on_max": false, "time_start": "2023-09-08T13:10:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2023-09-08T12:49:55.737182Z", "ended": "2023-09-08T13:33:41.250820Z", "start_waiting": "2023-09-08T12:49:55.621595Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/66cfaf13e401c3471975d1144896d477-15.png", "player_count": 8, "ranked": true }, { "id": 106138, "name": "September 2023 9x9 A League Correspondence (SDK)", "director": { "id": 1162525, "username": "ants", "country": "un", "icon": "https://secure.gravatar.com/avatar/112db88f312658e329b4c4730bb7be3b?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1500, "deviation": 350, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Have fun.", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 17448, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 14400, "initial_time": 86400, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 11630, "name": "SDK Proving Grounds (Single Digit Kyu)", "summary": "The Official SDK Proving Grounds. This group spawned from the DDK Proving Grounds (Double Digit Kyu) group, & it's popularity. Here, SDK's can play against other SDK's (or Dan players that haven’t established a solid foothold in Dan land yet). If you get s", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 100, "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-64.png" }, "auto_start_on_max": false, "time_start": "2023-09-01T19:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 25, "max_ranking": 29, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-01T19:00:11.512696Z", "ended": "2023-09-20T01:29:55.801772Z", "start_waiting": "2023-09-01T19:00:11.444210Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-15.png", "player_count": 5, "ranked": true }, { "id": 70977, "name": "Honinbo Main 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": 2004.4188438214221, "deviation": 67.71437067217448, "volatility": 0.06015576961047741 } }, "ranking": 31.014313855840236, "professional": false, "ui_class": "supporter" }, "description": "Honinbo Main Title Tournament 2021\n\nTitle Holder:\n<a style=\"color:red\" href='https://online-go.com/user/view/153042/'>meteor [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\">Title Tournament Winner<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_19.png' alt='Gold'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament Runner-up<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_19.png' alt='Silver'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament 3rd Place<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_19.png' alt='Bronze'></img></th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2370'>2007</a></td>\n\t<td><b>luke</b></td><td></td><td></td>\n\t<td><b>luke (2d)</b></td><td>dexy (1d)</td><td>davos (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2390'>2008</a></td>\n\t<td><b>Uberdude</b></td><td>∗</td><td>luke</td>\n\t<td><b>Uberdude (6d)</b></td><td>KyuT (4d)</td><td>gomad361 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2403'>2009</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>gomad361</td>\n\t<td><b>gomad361 (2d)</b></td><td>morituri (2d)</td><td>dexy (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2420'>2010</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>Elin</td>\n\t<td><b>Elin (3d)</b></td><td>dexy (1d)</td><td>gomad361 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2435'>2011</a></td>\n\t<td><b>Uberdude</b></td><td></td><td></td>\n\t<td><b>Uberdude (6d)</b></td><td>vitality (5d)</td><td>Kobajagi (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2457'>2012</a></td>\n\t<td><b>nrx</b></td><td>∗</td><td>Uberdude</td>\n\t<td><b>nrx (3d)</b></td><td>tegais (3d)</td><td>vitality (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2477'>2013</a></td>\n\t<td><b>vitality</b></td><td>5-0</td><td>nrx</td>\n\t<td><b>vitality (5d)</b></td><td>Sadaharu (5d)</td><td>wurfmaul (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2495'>2014</a></td>\n\t<td><b>vitality</b></td><td>5-0</td><td>Sadaharu</td>\n\t<td><b>vitality (5d)</b></td><td>Sadaharu (5d)</td><td>nrx (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/4470'>2015</a></td>\n\t<td><b>Sadaharu</b></td><td>5-0</td><td>vitality</td>\n\t<td><b>Sadaharu (4d)</b></td><td>Staffan (7d)</td><td>GreenLeaf (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/15379'>2016</a></td>\n\t<td><b>meteor</b></td>\n\t<td>4-1 (∗)</td>\n\t<td>Sadaharu</td>\n\t<td><b>micky0427 (6d)</b></td>\n\t<td>Vladas (6d)</td>\n\t<td>meteor (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/25799'>2017</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Sadaharu (9d)</b></td>\n\t<td>sha7 (4d)</td>\n\t<td>asdffdsaasdffdsa (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/37246'>2018</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>rzhang20877 [9d]</b></td>\n\t<td>Sadaharu [7d]</td>\n\t<td>bigko [6d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/48518'>2019</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td>Ongoing: Round 3</td>\n\t<td></td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/56651'>2020</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td>Ongoing: Round 1</td>\n\t<td></td>\n</tr>\n</table>\n\n∗ means the games were finished by timeout or retirement. Old OGS ranks are displayed for cycles before 2015.\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": 2971, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2021-03-13T03:00:00Z", "players_start": 200, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-03-13T03:01:25.104743Z", "ended": "2023-12-04T05:16:43.649452Z", "start_waiting": "2021-03-13T03:00:53.790219Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 270, "ranked": true }, { "id": 113192, "name": "Live 19x19 Swiss Tournament 2024-02-24 12:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 4, "name": "Live 19x19 Swiss Tournament", "rrule": "DTSTART:20260417T120000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-04-17T12:00:56.301184Z", "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": "2026-04-17T16:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 35, "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": "2024-02-24T12:30:28.688315Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2024-02-24T12:31:28.870547Z", "ended": "2024-02-24T13:50:45.791353Z", "start_waiting": "2024-02-24T12:31:28.699294Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 8, "ranked": true }, { "id": 107074, "name": "Live 19x19 Swiss Tournament 2023-09-02 16:30", "director": { "id": 4, 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