Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4564
{ "count": 59253, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4565", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4563", "results": [ { "id": 83541, "name": "Theo vs Sam - 1", "director": { "id": 1092193, "username": "SamK", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dfae31bed3c08962b89ee16a0a9a096?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 585.431231471823, "deviation": 73.16723540679891, "volatility": 0.05989819317337097 } }, "ranking": 5, "professional": false, "ui_class": "" }, "description": "Theo vs Sam - 1", "schedule": null, "title": null, "tournament_type": "mcmahon", "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": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 10743, "name": "Theo's Go Group", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 2, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2021-12-10T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-12-14T04:20:21.176278Z", "ended": "2022-12-09T21:46:44.993527Z", "start_waiting": "2021-12-14T04:20:21.088914Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 36632, "name": "Correspondence 9x9 RoundRobin 2018-04-24 01:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260405T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-05T19:00:18.080101Z", "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": "2026-04-08T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "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": "2018-04-24T01:00:25.503124Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2018-04-24T01:00:54.116667Z", "ended": "2018-05-05T08:27:55.724457Z", "start_waiting": "2018-04-24T01:00:53.017949Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 5, "ranked": true }, { "id": 117522, "name": "Jazz standards - Take Five", "director": { "id": 881921, "username": "GrandPa Frog", "country": "ru", "icon": "https://user-uploads.online-go.com/5fb556e66c2a6329343862ba69d68976-64.png", "ratings": { "version": 5, "overall": { "rating": 1389.7430311055082, "deviation": 63.68664986900685, "volatility": 0.059849518549770615 } }, "ranking": 22.53596654639986, "professional": false, "ui_class": "" }, "description": "<link rel=\"stylesheet\" type=\"text/css\" href=\"https://<pavelgvozdev.ru/ogs_tournament>/<tournament.css>\">\n\n<p>Friends!!!</p>\n<p>Grandpa Frog, who is a member of the <a href=\"https://Gomagic.org\">GoMagic</a> group on the OGS, is hosting the July (2024) \"Jazz standards - Take Five\" tournament with the help of <a href=\"https://Gomagic.org\">GoMagic</a>.</p>\n\n<p>Two bars of accompaniment are enough, and you can guess that Take Five is about to be played. This was the first jazz theme written in 5/4, and it was included on the 1959 album Time Out. Let me remind you that Dave Brubeck specifically created pieces in tricky sizes - 9/8, 6/4, 7/4 or used variable sizes (two bars by three, two bars by two). And in this experiment, the most popular theme was 5/4.</p>\n\n<figure class = \"pic\">\n <img src=\"http://pavelgvozdev.ru/ogs_tournament/Jazz_standards_Take_Five/Take_five_2.jpg\" width=500>\n <figcaption>The Dave Brubeck Quartet.</figcaption>\n</figure>\n\n<p>Of course “five” is in the title for a reason, but actually Take Five means “five minute break”. The fact that such a theme could become a hit and that it became a household name at musical gatherings is amazing, but if you think about it, isn't that proof that jazz is no longer a music for dancing? It's no coincidence that the Brubeck Quartet achieved its greatest popularity among American intellectuals, and its concerts were most often a success with student audiences.</p>\n\n<figure class = \"pic\">\n <img src=\"http://pavelgvozdev.ru/ogs_tournament/Jazz_standards_Take_Five/Take_five.jpg\" width=500>\n <figcaption>Dave Brubeck</figcaption>\n</figure>\n\n<p>Later, arrangements for big bands emerged, and vocal versions also appeared. Of these, the most successful, in the opinion of jazz lovers, is Al Jarreau's 1977 recording (Over the Ranibow album). But I recommend listening to the original Brubeck Quartet recording. Joe Morello on drums, Gene Wright on double bass, and Desmond on saxophone.</p>\n\n<p>\n<embed src=\"https://www.youtube.com/embed/tT9Eh8wNMkw?si=uaG2XthjQUYn3w5P\" width=\"640\" height=\"480\"><br>\nOriginal Brubeck Quartet recording\n</p>\n\n<p>Paul Desmond (1924-1977) was an alto saxophonist, one of the brightest representatives of cool jazz, popular in the early fifties on the West Coast of the United States.</p>\n\n<p>In 1951-1967 he played in the Brubeck Quartet, his improvisations were characterized by striking melody and impeccable logic of development.\" I don't know why my sax produces such a sound, such a tone,\" Desmond admitted, \"Sometimes I think I'm playing illegally. The Take Five theme brought the saxophonist amazing success and huge royalties, which, incidentally, he donated to the Red Cross.In 1951-1967 he played in the Brubeck Quartet, his improvisations were characterized by striking melody and impeccable logic of development.\" I don't know why my sax produces such a sound, such a tone,\" Desmond admitted, \"Sometimes I think I'm playing illegally. The Take Five theme brought the saxophonist amazing success and huge royalties, which, incidentally, he donated to the Red Cross.</p>\n\n<p>\n<embed src=\"https://www.youtube.com/embed/hhq7fSrXn0c?si=mmqD-JOuCdoQmRJf\" width=\"640\" height=\"480\"><br>\nAl Jarreau's 1977 recording\n</p>\n\n<p>After leaving the quartet, Paul Desmond recorded three great albums - Summertime, Skylark and Like Someone In Love.</p>\n\n<p>A couple of vocal versions of this wonderful composition.</p>\n\n<p>\n<embed src=\"https://www.youtube.com/embed/9OsEsDksNaw?si=taQWlZl-21OPC_Jj\" width=\"640\" height=\"480\"><br>\nAbi Flynn's vocal version of Take Five.\n</p>\n\n<p>\n<embed src=\"https://www.youtube.com/embed/Xq9PRCrHgfo?si=sbjQahFTaocYXwTj\" width=\"640\" height=\"480\"><br>\nCarmen McRay's vocal version of Take Five.\n</p>\n\n<p>And now about pleasant things, about prizes! First of all, each participant of this unofficial tournament will receive an unofficial prize - a Chinese Go book in electronic form. The link to the book will be posted in the tournament chat for a few days after the tournament starts. Since the chat room is periodically cleared of messages, the link will be removed after some time. If you haven't had a chance to download the book, post in the tournament chat and I'll post the link again.</p>\n\n<p>Second, GoMagic.org has generously sponsored prizes for participants of the unofficial tournaments that I host.These prizes come in the form of coupons, which can be used towards the purchase of GoMagic courses and memberships. In each group of our the third round, participants ranking 1st and 2nd will be awarded these valuable prizes.As the host, I will personally deliver the coupons to the winners via private message on OGS</p>\n\n<p>Something about the regulations. Please note that each move adds 1 day to the time, but no more than 3 days. Time is suspended for the weekend. This means that you have to make one move per day.</p>\n\n<p>\n Regards,<br>\n Grandpa Frog.\n</p>\n\n<a href=\"https://info.flagcounter.com/Nxt0\"><img src=\"https://s01.flagcounter.com/count2/Nxt0/bg_FFFFFF/txt_000000/border_CCCCCC/columns_4/maxflags_50/viewers_0/labels_0/pageviews_0/flags_0/percent_0/\" alt=\"Flag Counter\" border=\"0\"></a>\n\n<p>P.S. <strike>James Bond will return in the movie \"From Russia with love\"~~</strike></p>\n\n<p>Tournaments <a href=\"https://Go magic.org \">Go Magic</a> will continue in August with the \"Bayun the cat\" tournament.</p>", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 259200, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 8605, "name": "Go Magic", "summary": "A modern platform for learning Go", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 2024, "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png" }, "auto_start_on_max": false, "time_start": "2024-07-10T18:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2024-07-10T18:00:30.147259Z", "ended": "2026-03-29T08:02:03.556791Z", "start_waiting": "2024-07-10T18:00:26.333746Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png", "player_count": 63, "ranked": true }, { "id": 38300, "name": "1st Continental Go World Cup-Qualification Phase for North America: Category 19-15k", "director": { "id": 472707, "username": "Rorimuha", "country": "de", "icon": "https://secure.gravatar.com/avatar/8db3342c496531b5e52bf3d1829e9bed?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1516.498123369883, "deviation": 65.47420203284265, "volatility": 0.0595946253187008 } }, "ranking": 24.55661314647885, "professional": false, "ui_class": "" }, "description": "Hello <br>\nThis is the qualification phase for the North America players who has a level between 19k and 15k.<br>\n(This is the group n°1. The winner of this group will play a final qualification phase against the winners of the other groups of the same category.)\n<br>\n<span style=\"color:red;\">REMEMBER THAT YOUR FLAG MUST MATCH WITH THE CONTINENT (for example, the canadian flag is considered as North American flag).</p>\nHave fun :)", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 59520, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 172800, "max_time": 259200, "time_increment": 57600, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 2514, "name": "Continental and World Go Cups Group", "summary": "You want to become World Champion or a Continental champion? Join us :)", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 526, "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-64.png" }, "auto_start_on_max": true, "time_start": "2018-07-12T10:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2018-07-17T20:07:50.017255Z", "ended": "2018-10-01T22:35:50.050237Z", "start_waiting": "2018-07-17T20:07:46.749857Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-15.png", "player_count": 9, "ranked": true }, { "id": 129418, "name": "EP.1 รอบทดลองทำทัวร์เเละจัดเพื่อไว้เล่นกับทุกคน", "director": { "id": 702782, "username": "End of light", "country": "th", "icon": "https://user-uploads.online-go.com/94a4f13c5f45ec4006b4228b3352ad97-64.png", "ratings": { "version": 5, "overall": { "rating": 1548.179461458927, "deviation": 66.03156457322257, "volatility": 0.06011914392670827 } }, "ranking": 25.035259975714073, "professional": false, "ui_class": "" }, "description": "มาสนุกกันเถอะ", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 51, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 2700, "period_time": 30, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": { "id": 15421, "name": "GO TH FOR END OF LIGHT", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 7, "icon": "https://user-uploads.online-go.com/4c41dacf73819b5918ef56dbe66d590c-64.png" }, "auto_start_on_max": false, "time_start": "2025-06-13T16:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 30, "analysis_enabled": false, "exclusivity": "invite", "started": "2025-06-14T07:20:26.988841Z", "ended": "2025-06-14T07:23:18.096659Z", "start_waiting": "2025-06-14T07:20:26.780099Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/4c41dacf73819b5918ef56dbe66d590c-15.png", "player_count": 2, "ranked": true }, { "id": 95574, "name": "9x9 Open League #48", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1354.7118139948188, "deviation": 69.37399710693171, "volatility": 0.060207963604883834 } }, "ranking": 21.944944452879042, "professional": false, "ui_class": "" }, "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/10842", "schedule": null, "title": null, "tournament_type": "roundrobin", "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": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 3524, "name": "9x9 Lovers", "summary": "A group for Go players who love the 9x9 board.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 696, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2022-10-23T20:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2022-10-23T07:26:48.961429Z", "ended": "2022-12-10T02:32:31.985898Z", "start_waiting": "2022-10-23T07:26:48.466928Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 10, "ranked": true }, { "id": 95679, "name": "1 -> 蔡仲文 2 -> 梅梓俊", "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": "1 -> 蔡仲文\n2 -> 梅梓俊", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 36, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 30, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7531, "name": "傳碁 C班", "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": "2022-10-15T04:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2022-10-15T03:44:24.605550Z", "ended": "2022-10-15T04:13:02.929898Z", "start_waiting": "2022-10-15T03:44:24.547508Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 2, "ranked": true }, { "id": 95938, "name": "李梓揚 胡煜樑", "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": "李梓揚\n胡煜樑", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 36, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 30, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 6399, "name": "傳碁 B班", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 53, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2022-10-22T06:00:00Z", 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