Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=first_pairing_method&page=279
{ "count": 60771, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=first_pairing_method&page=280", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=first_pairing_method&page=278", "results": [ { "id": 110525, "name": "Correspondence Weekly McMahon 19x19 2023-12-16 17:00", "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": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": "DTSTART:20260817T170000Z\nRRULE:FREQ=WEEKLY", "active": true, "created": "2015-12-16T02:22:56.480465Z", "last_run": "2026-08-17T17:00:29.631606Z", 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"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": "2018-03-31T17:00:43.998899Z", "players_start": 60, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2018-03-31T17:02:06.746275Z", "ended": "2019-10-23T11:22:18.149705Z", "start_waiting": "2018-03-31T17:01:32.628352Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 96, "ranked": true }, { "id": 19959, "name": "Sonntags 13er", "director": { "id": 1039, "username": "joachim", "country": "de", "icon": "https://user-uploads.online-go.com/cb60432b91d79a1055a51afbe4f22dce-64.png", "ratings": { "version": 5, "overall": { "rating": 1811.9172760670942, "deviation": 66.49413951629991, "volatility": 0.0606614126234957 } }, "ranking": 28.676890485882275, "professional": false, "ui_class": "supporter" }, "description": "Freundliches 13x13 am Sonntag Nachmittag.", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": -1, "rules": "japanese", "time_per_move": 23, "time_control_parameters": { "time_control": "fischer", "initial_time": 300, "max_time": 600, "time_increment": 20 }, "is_open": true, "exclude_provisional": false, "group": { "id": 1240, "name": "Braunschweig-Go", "summary": "Go in Braunschweig", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 56, "icon": "https://user-uploads.online-go.com/3ee5151405dee7fcd7890745353b9b41-64.png" }, "auto_start_on_max": false, "time_start": "2016-08-21T11:00:00Z", "players_start": 2, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2016-08-21T11:00:21.325445Z", "ended": "2016-08-21T11:53:35.914313Z", "start_waiting": "2016-08-21T11:00:20.941991Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/3ee5151405dee7fcd7890745353b9b41-15.png", "player_count": 5, "ranked": true }, { "id": 118353, "name": "Correspondence Weekly McMahon 19x19 2024-07-27 17:00", "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 Site-wide Tournament", "schedule": { "id": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": "DTSTART:20260817T170000Z\nRRULE:FREQ=WEEKLY", "active": true, "created": "2015-12-16T02:22:56.480465Z", "last_run": "2026-08-17T17:00:29.631606Z", "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": "2026-08-24T17:00:00Z", "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": "2024-07-27T17:00:21.574208Z", "players_start": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2024-07-27T17:00:27.231326Z", "ended": "2025-02-28T15:53:45.531306Z", "start_waiting": "2024-07-27T17:00:26.458135Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 13, "ranked": true }, { "id": 54459, "name": "Blitz 13x13 Swiss Tournament 2019-12-04 11:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260823T150000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-08-23T15:00:22.652166Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "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": "2026-08-23T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2019-12-04T11:30:00.586737Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2019-12-04T11:30:02.664513Z", "ended": "2019-12-04T12:22:32.153907Z", "start_waiting": "2019-12-04T11:30:01.683713Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 7, "ranked": true }, { "id": 80910, "name": "The 38th Murase Go Group Tournament", "director": { "id": 449215, "username": "SM-SYaKo", "country": "jp", "icon": "https://user-uploads.online-go.com/e577b58bab7d7fc9871766c9d1f7195a-64.png", "ratings": { "version": 5, "overall": { "rating": 1182.178471692773, 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This is the 38th tournament that starts on November 27th, 2021.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": -1, "rules": "japanese", "time_per_move": 21840, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 18000, "initial_time": 345600, "max_time": 345600 }, "is_open": true, "exclude_provisional": false, "group": { "id": 2389, "name": "Murase Go Group", "summary": "The group of Japanese and any go player from different countries.\nこのグループは日本人や世界中の国々の人々が集うグループです。", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 92, "icon": "https://user-uploads.online-go.com/9e03e37d7a9f7508c9a114190260a7b9-64.png" }, "auto_start_on_max": false, "time_start": "2021-11-26T23:00:00Z", "players_start": 2, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-11-26T23:00:58.280455Z", "ended": "2022-06-20T10:07:44.110619Z", "start_waiting": "2021-11-26T23:00:55.274728Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/9e03e37d7a9f7508c9a114190260a7b9-15.png", "player_count": 42, "ranked": true }, { "id": 92481, "name": "9x9 Open D.E. 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