Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=player_count&page=5580
{ "count": 58843, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=5581", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=player_count&page=5579", "results": [ { "id": 136573, "name": "Not so strong Tournament", "director": { "id": 1827323, "username": "deleted-c6a09559-3471-4d3e-b851-4e9de29f76d4", "country": "ru", "icon": "https://user-uploads.online-go.com/6e64e4aa4a8c7b7fbdb261608b6ec37f-64.png", "ratings": { "version": 5, "overall": { "rating": 1034.020494894613, "deviation": 69.97968694330321, "volatility": 0.06000933175355701 } }, "ranking": 15.691338847005301, "professional": false, "ui_class": "" }, "description": "Beat 20-10 kyu!\nFaster, higher, stronger -_-", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 87084, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 86400, "initial_time": 86400, "max_time": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 1655, "name": "yagobo", "summary": "「人生の中で一番生きている気がする」", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 14, "icon": "https://user-uploads.online-go.com/4b7d234550cea7f0467e74178f21d876-64.png" }, "auto_start_on_max": false, "time_start": "2026-01-23T06:00:00Z", "players_start": 6, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": false, "exclusivity": "open", "started": "2026-01-23T05:59:23.714835Z", "ended": null, "start_waiting": "2026-01-23T05:59:23.354776Z", "board_size": 19, "active_round": 2, "icon": "https://user-uploads.online-go.com/4b7d234550cea7f0467e74178f21d876-15.png", "player_count": 18, "ranked": true }, { "id": 123560, "name": "Correspondence Weekly McMahon 19x19 2024-12-28 17:00", "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 Site-wide Tournament", "schedule": { "id": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": "DTSTART:20260302T170000Z\nRRULE:FREQ=WEEKLY", "active": true, "created": "2015-12-16T02:22:56.480465Z", "last_run": "2026-03-02T17:00:40.843843Z", "lead_time_seconds": 432000, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "size": 19, "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": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": 3, "upper_bar": "25", "lower_bar": "15", "group_size": 4, "maximum_players": 1000 }, "next_run": "2026-03-09T17:00:00Z", "base_points": "30.0" }, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "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": "2024-12-28T17:00:55.477332Z", "players_start": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2024-12-28T17:01:35.955456Z", "ended": "2026-02-19T21:12:03.776109Z", "start_waiting": "2024-12-28T17:01:34.778590Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 18, "ranked": true }, { "id": 135403, "name": "Let's improve ourself! McMahon for 6k to high levels [FAST] # II", "director": { "id": 1872546, "username": "Sch-Mentor", "country": "001", "icon": "https://user-uploads.online-go.com/41804ae38abc71e0bea5040b313b01ec-64.png", "ratings": { "version": 5, "overall": { "rating": 1500, "deviation": 250, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Hi everyone!\nThis tournament would be useful for your improvement due to McMahon system because your games will be more evenly matched.\n\nThe number of rounds and the top bar could be modified in first round according to the total number of players and the population above the bar.\n\nFast tournament: pay attention, 12 hours increment is something like two movements per day.\n\nThings to keep in mind:\n* Use the conditional move feature to speed up the game.\n* No pauses and no vacations are allowed; if any player switch it on, then they will be disqualified without further notice or reminder (unless they have an urgent matter to attend to and give notice to TD).\n* Disqualification will occur automatically by the site if a player loses by timeout.\n* If you find that a player pauses the game, enters vacation mode or has bad behavior, please send a message to the TD.\n* And last but not least: no weekends; just make your move, it’s a tournament, my friend!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 44568, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 43200, "initial_time": 172800, "max_time": 172800 }, "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": 814, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png" }, "auto_start_on_max": true, "time_start": "2026-01-05T17:33:00Z", "players_start": 16, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 24, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-01-05T17:33:30.763710Z", "ended": null, "start_waiting": "2026-01-05T17:33:30.405518Z", "board_size": 19, "active_round": 3, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png", "player_count": 18, "ranked": true }, { "id": 135536, "name": "Go Zodiac Friendship Games Online ราศีธนู รุ่น E กระดาน 13x13 (ต่ำกว่า 8 คิว)", "director": { "id": 912069, "username": "cp03", "country": "un", "icon": "https://user-uploads.online-go.com/4da1ef892b79d62ea729b1964f8d22fc-64.png", "ratings": { "version": 5, "overall": { "rating": 1107.4533474986902, "deviation": 189.37898466816355, "volatility": 0.06001261824989068 } }, "ranking": 17.279625645714837, "professional": false, "ui_class": "provisional" }, "description": "แต้มต่อ 6.5 คะแนน", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 15, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "blitz", "pause_on_weekends": false, "main_time": 300, "period_time": 10, "periods": 5 }, "is_open": true, "exclude_provisional": false, "group": { "id": 10407, "name": "Zodiac กลุ่ม E(ต่ำกว่า 8 คิว) กระดาน 13", "summary": "", "require_invitation": true, "is_public": false, "admin_only_tournaments": true, "hide_details": false, "member_count": 228, "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-64.png" }, "auto_start_on_max": false, "time_start": "2025-12-26T10:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2025-12-26T10:00:11.938428Z", "ended": "2025-12-26T10:53:42.489527Z", "start_waiting": "2025-12-26T10:00:11.589477Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-15.png", "player_count": 18, "ranked": true }, { "id": 103330, "name": "OST - Olympic System Tournament", "director": { "id": 1033608, "username": "NetCat", "country": "_United_Federation_of_Planets", "icon": "https://secure.gravatar.com/avatar/013a769c858b338916b473d8298930be?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1406.6650193080409, "deviation": 70.55993802829255, "volatility": 0.06003444046653894 } }, "ranking": 22.81614654991628, "professional": false, "ui_class": "" }, "description": "Tournaments are held every Saturday\n\nJoin the OST community (^-^)", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 91187, "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": 11969, "name": "OST GO", "summary": "For Olympic tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 55, "icon": "https://user-uploads.online-go.com/2510b06e500642c98f1a27be3aea35d9-64.png" }, "auto_start_on_max": false, "time_start": "2023-07-15T14:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-07-15T14:00:48.021573Z", "ended": "2025-11-16T04:44:16.431109Z", "start_waiting": "2023-07-15T14:00:47.716486Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/2510b06e500642c98f1a27be3aea35d9-15.png", "player_count": 18, "ranked": true }, { "id": 120331, "name": "DDK Malkovich Tournament", "director": { "id": 1277282, "username": "gug30", "country": "_United_Federation_of_Planets", "icon": "https://user-uploads.online-go.com/7f550bfc523fb9baa88055848046db07-64.png", "ratings": { "version": 5, "overall": { "rating": 845.2521775859933, "deviation": 63.990058598655516, "volatility": 0.06003245823871806 } }, "ranking": 11.024880884169207, "professional": false, "ui_class": "" }, "description": "You must use the Malkovich chat for as many moves as possible (click on Chat in the bottom right, change it to green Malkovich). Try to use it to explain your thoughts for all your moves!\n\nThis allows you to explain your reasoning for moves which your opponent can read after the game so we can all learn more.", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "chinese", "time_per_move": 88451, "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": 24, "name": "Double Digit Kyu Room", "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 3640, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2024-10-19T06:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2024-10-19T06:00:44.299390Z", "ended": "2025-11-15T04:06:00.070883Z", "start_waiting": "2024-10-19T06:00:44.108620Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 18, "ranked": true }, { "id": 133669, "name": "Go Zodiac Friendship Games Online ราศีตุลย์ รุ่น E กระดาน 13x13 (ต่ำกว่า 8 คิว)", "director": { "id": 912813, "username": "cp05", "country": "th", "icon": "https://user-uploads.online-go.com/ae018e5524da4ed68a067c720b339b3f-64.png", "ratings": { "version": 5, "overall": { "rating": 824.4987186600506, "deviation": 187.86352438460568, "volatility": 0.06000382017326623 } }, "ranking": 10.449385081288156, "professional": false, "ui_class": "provisional" }, "description": "แต้มต่อ 6.5 คะแนน", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 15, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "blitz", "pause_on_weekends": false, "main_time": 300, "period_time": 10, "periods": 5 }, "is_open": true, "exclude_provisional": false, "group": { "id": 10407, "name": "Zodiac กลุ่ม E(ต่ำกว่า 8 คิว) กระดาน 13", "summary": "", "require_invitation": true, "is_public": false, "admin_only_tournaments": true, "hide_details": false, "member_count": 228, "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-64.png" }, "auto_start_on_max": false, "time_start": "2025-10-31T10:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2025-10-31T10:00:08.385597Z", "ended": "2025-10-31T10:43:16.319288Z", "start_waiting": "2025-10-31T10:00:07.508844Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/e347d3f7f8d53cfe3a1fed187a3e1f1e-15.png", "player_count": 18, "ranked": true }, { "id": 129035, "name": "telmich's experimental tournament - random round 3", "director": { "id": 1524436, "username": "telmich", "country": "ch", "icon": "https://secure.gravatar.com/avatar/ebdfc657470c327d3dbda9a2e3de7522?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1129.9563057113241, "deviation": 62.13637020785834, "volatility": 0.05936321323776193 } }, "ranking": 17.745307956794463, "professional": false, "ui_class": "supporter" }, "description": "Still experimenting with the tournament settings to make the tournament most fun.\n\nThis is a simultaneous McMahon, meaning games start in parallel. It also uses random pairing in all steps so that you get to play not in slaughter mode (against the strongest/weakest), but someone you would not normally play with.\n\nThe previous tournament (https://online-go.com/tournament/128245) uses double elimination, which seems to be waiting for everyone to finish - not in this one!\n\nMore to read for those who are interested:\n\nhttps://en.wikipedia.org/wiki/McMahon_system_tournament\n\nhttps://senseis.xmp.net/?McMahonPairing", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 91187, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "correspondence", "pause_on_weekends": true, "main_time": 604800, "period_time": 86400, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 15384, "name": "Wait, don't go!", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 4, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2025-06-23T02:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 29, "analysis_enabled": true, "exclusivity": "open", "started": "2025-06-23T02:00:28.546292Z", "ended": null, "start_waiting": "2025-06-23T02:00:27.527208Z", "board_size": 19, "active_round": 3, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 18, "ranked": true }, { "id": 121623, "name": "Correspondence Weekly McMahon 19x19 2024-11-02 17:00", "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 Site-wide Tournament", "schedule": { "id": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": "DTSTART:20260302T170000Z\nRRULE:FREQ=WEEKLY", "active": true, "created": "2015-12-16T02:22:56.480465Z", "last_run": "2026-03-02T17:00:40.843843Z", "lead_time_seconds": 432000, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "size": 19, "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": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": 3, "upper_bar": "25", "lower_bar": "15", "group_size": 4, "maximum_players": 1000 }, "next_run": "2026-03-09T17:00:00Z", "base_points": "30.0" }, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "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": "2024-11-02T17:00:31.581298Z", "players_start": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2024-11-02T17:00:34.474735Z", "ended": "2025-10-05T06:10:22.858871Z", "start_waiting": "2024-11-02T17:00:33.564680Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 18, "ranked": true }, { "id": 132788, "name": "DMCR ครั้งที่ 2", "director": { "id": 902908, "username": "SUGA-KruPete", "country": "un", "icon": "https://user-uploads.online-go.com/260846090c5c4fe7af1213a1eb7dfa28-64.png", "ratings": { "version": 5, "overall": { "rating": 1923.7422085322335, "deviation": 66.74202498652025, "volatility": 0.06002279103329752 } }, "ranking": 30.063269971235375, "professional": false, "ui_class": "" }, "description": "การแข่งขันกระชับมิตร", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 21, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "live", "pause_on_weekends": false, "total_time": 600 }, "is_open": true, "exclude_provisional": false, "group": { "id": 15747, "name": "DMCR123456", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": true, "member_count": 35, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2025-09-26T08:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-09-26T07:55:52.830875Z", "ended": "2025-09-26T09:00:31.049113Z", "start_waiting": "2025-09-26T07:55:52.552135Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 18, "ranked": true } ] }
