Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=1379
{ "count": 59695, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=1380", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=1378", "results": [ { "id": 132459, "name": "Handicap Arena 2025 - 077", "director": { "id": 526987, "username": "Gia", "country": "gr", "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png", "ratings": { "version": 5, "overall": { "rating": 1078.2474990725018, "deviation": 64.47389607256166, "volatility": 0.060064289319200645 } }, "ranking": 16.660917338564136, "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": 107, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png" }, "auto_start_on_max": true, "time_start": "2025-09-20T16:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-09-20T00:56:18.756711Z", "ended": "2025-12-27T12:17:24.951550Z", "start_waiting": "2025-09-20T00:56:18.106278Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png", "player_count": 10, "ranked": true }, { "id": 16576, "name": "Correspondence 19x19 RoundRobin 2016-04-14 01:00", "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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260518T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-05-18T19:00:12.791370Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 432000, "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": "2026-05-21T19:00:00Z", "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, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-04-14T01:00:15.921394Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2016-04-14T01:00:35.233709Z", "ended": "2016-09-01T07:20:08.121261Z", "start_waiting": "2016-04-14T01:00:34.262737Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 10, "ranked": true }, { "id": 37917, "name": "19x19 Go Summer Season 1 Tournament", "director": { "id": 539003, "username": "Nineji", "country": "150", "icon": "https://user-uploads.online-go.com/3f71ef9b22d92418a90a714c55caa3f2-64.png", "ratings": { "version": 5, "overall": { "rating": 873.6948240229798, "deviation": 127.89786803316478, "volatility": 0.060003959576227686 } }, "ranking": 11.791056183364189, "professional": false, "ui_class": "" }, "description": "Have fun with the 1st season of Go Summer!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 60, "time_control_parameters": { "time_control": "simple", "speed": "live", "system": "simple", "pause_on_weekends": false, "per_move": 60 }, "is_open": true, "exclude_provisional": false, "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": 17968, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2018-06-16T12:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-06-16T12:00:11.574391Z", "ended": "2018-06-16T12:11:18.297119Z", "start_waiting": "2018-06-16T12:00:10.523946Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 7, "ranked": true }, { "id": 125251, "name": "Handicap Arena 2025 - 011", "director": { "id": 526987, "username": "Gia", "country": "gr", "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png", "ratings": { "version": 5, "overall": { "rating": 1078.2474990725018, "deviation": 64.47389607256166, "volatility": 0.060064289319200645 } }, "ranking": 16.660917338564136, "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": 107, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png" }, "auto_start_on_max": true, "time_start": "2025-02-16T13:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-02-15T19:18:33.604810Z", "ended": "2025-07-27T06:33:20.946372Z", "start_waiting": "2025-02-15T19:18:33.019946Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png", "player_count": 10, "ranked": true }, { "id": 111105, "name": "9x9 Open League #85", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1274.1247865151, "deviation": 68.23583237134109, "volatility": 0.060213284468931476 } }, "ranking": 20.525172376486132, "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": 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": 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": 698, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2024-01-07T20:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2024-01-04T17:02:23.439144Z", "ended": "2024-02-16T23:41:06.645239Z", "start_waiting": "2024-01-04T17:02:22.794848Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 10, "ranked": true }, { "id": 68209, "name": "Melee 13x13 Tournament: 2020-12-01", "director": { "id": 741522, "username": "wolfmeister", "country": "_United_Federation_of_Planets", "icon": "https://secure.gravatar.com/avatar/c86451e4f5aaface6118117b8b91597b?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1209.6169056480942, "deviation": 65.52079638031556, "volatility": 0.06013235595814508 } }, "ranking": 19.32239564406787, "professional": false, "ui_class": "" }, "description": "Play async or live via video. Your choice.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 20160, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "correspondence", "pause_on_weekends": false, "total_time": 1814400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 6518, "name": "Madison Google Go", "summary": "Nominally a social league for the MSN site, but friendly, casual players from other sites welcome. Make sure to join the Hangouts room, go-msn@ group for announcements! Please send an *INTERNAL* email to the organizers to join. We don't always notice OG", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 18, "icon": "https://user-uploads.online-go.com/58487116e0e161b5d171c5b31268b059-64.png" }, "auto_start_on_max": false, "time_start": "2020-12-01T22:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-12-01T22:00:25.191156Z", "ended": "2021-01-10T02:53:46.277463Z", "start_waiting": "2020-12-01T22:00:24.649387Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/58487116e0e161b5d171c5b31268b059-15.png", "player_count": 7, "ranked": true }, { "id": 134535, "name": "9x9 Mini League 10k-25k #343", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1274.1247865151, "deviation": 68.23583237134109, "volatility": 0.060213284468931476 } }, "ranking": 20.525172376486132, "professional": false, "ui_class": "" }, "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 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": 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": true, "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": 698, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2025-11-23T20:05:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2025-11-22T16:18:09.875962Z", "ended": "2025-12-19T23:49:54.958170Z", "start_waiting": "2025-11-22T16:18:09.582659Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 79079, "name": "9x9 อั๋น", "director": { "id": 564908, "username": "Sarawoot Kanya", "country": "th", "icon": "https://user-uploads.online-go.com/b6481afb00bf1ffc14aefec9418093c9-64.png", "ratings": { "version": 5, "overall": { "rating": 1451.1518772700958, "deviation": 64.75698044754064, "volatility": 0.06068329446567833 } }, "ranking": 23.53694427651788, "professional": false, "ui_class": "" }, "description": "9x9 อั๋น", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 300, "period_time": 10, "periods": 5 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4793, "name": "Angel WFH", "summary": "การเล่นหมากล้อมออนไลน์สำหรับทีมพิธีการ และทีมหมากล้อม", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 38, "icon": "https://user-uploads.online-go.com/239e27d5dffdd0da2b53b35983f614e3-64.png" }, "auto_start_on_max": false, "time_start": "2021-08-21T05:00:00Z", "players_start": 3, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-08-21T05:00:46.562907Z", "ended": "2021-08-21T05:14:04.068201Z", "start_waiting": "2021-08-21T05:00:46.430170Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/239e27d5dffdd0da2b53b35983f614e3-15.png", "player_count": 4, "ranked": true }, { "id": 62137, "name": "Shogi 将棋 9x9 VIII", "director": { "id": 697149, "username": "deleted-57394cd2-c7b2-41c3-9e0b-1d116d71ec17", "country": "se", "icon": "https://user-uploads.online-go.com/2d41f0fc65fb65cf386d8f5534a6d163-64.png", "ratings": { "version": 5, "overall": { "rating": 1665.2715388700315, "deviation": 71.21323820073493, "volatility": 0.0598806998975717 } }, "ranking": 26.723091679426847, "professional": false, "ui_class": "" }, "description": "9x9 like Shogi, the only major chess variant where you can put pieces back on the board.", "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", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 935, "name": "Shogi 81Dojo", "summary": "Group for Shogi players on 81Dojo", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 38, "icon": "https://user-uploads.online-go.com/3c4c30cf525cdb0ce1b84419cbc29df1-64.png" }, "auto_start_on_max": false, "time_start": "2020-07-03T16:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2020-07-03T16:00:50.813888Z", "ended": "2020-08-20T14:59:00.729075Z", "start_waiting": "2020-07-03T16:00:50.232393Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/3c4c30cf525cdb0ce1b84419cbc29df1-15.png", "player_count": 13, "ranked": true }, { "id": 64025, "name": "Yu Jun vs Eng Soon", "director": { "id": 756229, "username": "mrrabbuit", "country": "sg", "icon": "https://user-uploads.online-go.com/95a91e6b595a49e91968bd28f3e90ce4-64.png", "ratings": { "version": 5, "overall": { "rating": 1348.0847977490964, "deviation": 156.13884872211037, "volatility": 0.05999992557636363 } }, "ranking": 21.831420754602473, "professional": false, "ui_class": "" }, "description": "7/8/2020", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "chinese", "time_per_move": 0, "time_control_parameters": { "system": "none", "time_control": "none", "speed": "correspondence", "pause_on_weekends": false }, "is_open": true, "exclude_provisional": false, "group": { "id": 5118, "name": "SP Weiqi 2020/2021", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 21, "icon": "https://user-uploads.online-go.com/8d7f8244283feaafac5174b82851f2fa-64.png" }, "auto_start_on_max": true, "time_start": "2020-08-07T12:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-08-07T11:06:57.010481Z", "ended": "2020-08-10T13:25:42.720981Z", "start_waiting": "2020-08-07T11:06:56.946553Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/8d7f8244283feaafac5174b82851f2fa-15.png", "player_count": 2, "ranked": true } ] }
