Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-min_ranking&page=1365
{ "count": 60707, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-min_ranking&page=1366", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-min_ranking&page=1364", "results": [ { "id": 130654, "name": "Handicap Arena 2025 - 061", "director": { "id": 526987, "username": "Gia", "country": "gr", "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png", "ratings": { "version": 5, "overall": { "rating": 1131.3390674606985, "deviation": 63.89894928210641, "volatility": 0.06006068621581099 } }, "ranking": 17.773619993220706, "professional": false, "ui_class": "supporter" }, "description": "Part of an arena tournament - 2025. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as it is full (10 players).", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 13655, "name": "Handicap Arena", "summary": "Organising arena-type handicap correspondence tournaments.", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 108, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png" }, "auto_start_on_max": true, "time_start": "2025-07-23T19:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-07-23T09:09:12.438376Z", "ended": "2025-10-24T19:30:17.384803Z", "start_waiting": "2025-07-23T09:09:11.889878Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png", "player_count": 10, "ranked": true }, { "id": 133718, "name": "24.10.2025", "director": { "id": 1871845, "username": "vdignatova26", "country": "un", "icon": "https://secure.gravatar.com/avatar/ccaa324e546bf4f4a76caeb2349d201b?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1431.342101180159, "deviation": 216.5777409423899, "volatility": 0.05999838122929472 } }, "ranking": 23.21874514755349, "professional": false, "ui_class": "provisional" }, "description": "Описание турнира", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": -1, "rules": "japanese", "time_per_move": 95543, "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": 15834, "name": "НашаГруппа", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": true, "hide_details": false, "member_count": 2, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2025-10-24T20:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2025-10-24T20:00:42.551655Z", "ended": "2025-10-27T20:24:16.409930Z", "start_waiting": "2025-10-24T20:00:42.480706Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 2, "ranked": true }, { "id": 82187, "name": "Friendly 9*9 - 9", "director": { "id": 743533, "username": "ss76", "country": "ru", "icon": "https://secure.gravatar.com/avatar/13929beaec2a082c41c26666dd917e5a?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 902.8383261100909, "deviation": 60.75143746642401, "volatility": 0.06002791867604441 } }, "ranking": 12.550662165780967, "professional": false, "ui_class": "" }, "description": "play go", "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", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 18113, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2021-11-07T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 18, "analysis_enabled": true, "exclusivity": "open", "started": "2021-11-07T17:00:22.735368Z", "ended": "2021-11-29T12:46:24.409041Z", "start_waiting": "2021-11-07T17:00:22.246297Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 7, "ranked": true }, { "id": 77466, "name": "Fast Correspondence 2021-07-20", "director": { "id": 784, "username": "mlopezviedma", "country": "ar", "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png", "ratings": { "version": 5, "overall": { "rating": 1558.7681484843145, "deviation": 62.264303238944116, "volatility": 0.05973863153844848 } }, "ranking": 25.193054109678815, "professional": false, "ui_class": "supporter moderator" }, "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled to allow the use of conditional moves.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 30720, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 28800, "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": 831, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png" }, "auto_start_on_max": false, "time_start": "2021-07-20T00:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-07-20T00:00:06.062761Z", "ended": "2021-10-23T14:42:20.440259Z", "start_waiting": "2021-07-20T00:00:03.704911Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png", "player_count": 10, "ranked": true }, { "id": 77896, "name": "25k-10k 19x19 Tournament", "director": { "id": 1012312, "username": "charlie11", "country": "jp", "icon": "https://secure.gravatar.com/avatar/2dcdff4966c0103300ce0d6fbf4e22e8?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1161.564727199071, "deviation": 67.2959124451604, "volatility": 0.06009585569543345 } }, "ranking": 18.38399410453256, "professional": false, "ui_class": "" }, "description": "...No Words...", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 864000, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": true, "per_move": 864000 }, "is_open": true, "exclude_provisional": true, "group": { "id": 9514, "name": "25k-10k (Double Digets Please)", "summary": "As long as your Double Digits or near Double Digits your welcome to join.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 57, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2021-07-26T20:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2021-07-24T19:56:18.555518Z", "ended": "2022-12-16T02:26:25.296579Z", "start_waiting": "2021-07-24T19:56:17.301624Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 10, "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": 1130.56280816428, "deviation": 61.6191571995732, "volatility": 0.05914211721543523 } }, "ranking": 17.757730353080923, "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": 3, "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": "2026-03-22T23:48:53.790236Z", "start_waiting": "2025-06-23T02:00:27.527208Z", "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": 637, "name": "flowman's mini-tournament", "director": { "id": 20221, "username": "flowman", "country": "us", "icon": "https://secure.gravatar.com/avatar/cc24952eeaac55fac50195e61243d089?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1331.8855936701764, "deviation": 63.60684422057915, "volatility": 0.059907493540384216 } }, "ranking": 21.55155487031082, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "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": true, "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": 5, "max_ranking": 12, "analysis_enabled": false, "exclusivity": "open", "started": "2009-02-07T02:44:35Z", "ended": "2009-02-07T01:44:35Z", "start_waiting": null, "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 54195, "name": "divergents", "director": { "id": 482619, "username": "wolf4138", "country": "us", "icon": "https://user-uploads.online-go.com/db908b500203147bb8140e9fda1d1d4e-64.png", "ratings": { "version": 5, "overall": { "rating": 1145.7353376102915, "deviation": 65.89098489285603, "volatility": 0.060050590178350155 } }, "ranking": 18.066344810433307, "professional": false, "ui_class": "" }, "description": "just to test everyone's skills in this group", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": -1, "rules": "japanese", "time_per_move": 279360, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "correspondence", "pause_on_weekends": true, "main_time": 1814400, "period_time": 259200, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 2150, "name": "divergents", "summary": "cool people that hang out and play go in the ladder's. soon to put up some group tournaments ", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 9, "icon": "https://user-uploads.online-go.com/4204922730153c6b615ba0ac8f457601-64.png" }, "auto_start_on_max": false, "time_start": "2019-12-12T17:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2019-12-11T15:28:18.767247Z", "ended": "2022-01-13T22:13:26.598795Z", "start_waiting": "2019-12-11T15:28:17.958167Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/4204922730153c6b615ba0ac8f457601-15.png", "player_count": 10, "ranked": true }, { "id": 133489, "name": "Go Magic Six (9x9) - Prizes for All", "director": { "id": 901303, "username": "Muff0", "country": "eu", "icon": "https://user-uploads.online-go.com/e04175e5267b560bb2448bb1867a73e7-64.png", "ratings": { "version": 5, "overall": { "rating": 1729.5504160206208, "deviation": 62.910145386376016, "volatility": 0.059871385576140676 } }, "ranking": 27.599858645266146, "professional": false, "ui_class": "" }, "description": "🎉A special rapid tournament to celebrate Go Magic’s 6th birthday!🎉\n\n**All prizes are Go Magic Gift Cards**\n\n\n🏆**Prizes:**\n\n- 1st Place: $300\n- 2nd Place: $240\n- 3rd Place: $180\n- 4th Place: $120\n- 5th Place: $60\n\n\n🏆**Special Prizes(mutually exclusive with winning):** \n- 6 Wins: $150 \n- 5 Wins: $100\n- 4 Wins: $50 \n\n🎁 **Participation Prize: Everyone who finishes all 6 rounds will receive a coupon for a free course of their choice.**\n\nAll you have to do is register and be here at the starting time! \nThe next rounds will start as soon as all the games are finished.\n\nThe expected total duration is about 1.5h\n\n⌚ **The start time is shown in your local timezone!!**\n\n\nCheck out our courses at https://gomagic.org/", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 19, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "rapid", "pause_on_weekends": false, "time_increment": 8, "initial_time": 300, "max_time": 600 }, "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": 2234, "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png" }, "auto_start_on_max": false, "time_start": "2025-10-25T18:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2025-10-25T18:00:51.813035Z", "ended": "2025-10-25T19:52:00.770557Z", "start_waiting": "2025-10-25T18:00:45.233288Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png", "player_count": 222, "ranked": true }, { "id": 53910, "name": "Fast Correspondence – November 2019 (E)", "director": { "id": 784, "username": "mlopezviedma", "country": "ar", "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png", "ratings": { "version": 5, "overall": { "rating": 1558.7681484843145, "deviation": 62.264303238944116, "volatility": 0.05973863153844848 } }, "ranking": 25.193054109678815, "professional": false, "ui_class": "supporter moderator" }, "description": "Please, avoid delaying your games using the vacation feature. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 30720, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 28800, "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": 831, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png" }, "auto_start_on_max": false, "time_start": "2019-11-22T00:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2019-11-22T00:00:17.493051Z", "ended": "2020-01-01T13:20:51.813272Z", "start_waiting": "2019-11-22T00:00:11.286381Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png", "player_count": 10, "ranked": true } ] }
