Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=board_size&page=13
{ "count": 60428, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=14", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=12", "results": [ { "id": 71683, "name": "Live 9x9 Double Elimination Tournament 2021-02-20 18:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260730T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-07-30T02:00:22.658406Z", "lead_time_seconds": 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"subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-02-20T18:30:03.745549Z", "ended": "2021-02-20T19:17:46.601765Z", "start_waiting": "2021-02-20T18:30:03.338733Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 9, "ranked": true }, { "id": 75113, "name": "Correspondence 9x9 RoundRobin 2021-05-14 19:01", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260728T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-07-28T19:00:22.552947Z", "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": "2026-07-31T19:00:00Z", "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": "2021-05-14T19:01:01.092224Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2021-05-14T19:02:02.121002Z", "ended": "2021-07-14T02:36:00.973374Z", "start_waiting": "2021-05-14T19:02:01.136731Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 9, "ranked": true }, { "id": 71604, "name": "トーナメント５", "director": { "id": 850623, "username": "KKS_SLATEPORT", "country": "fr", "icon": "https://user-uploads.online-go.com/d4c34b1c5fcda48dd0d8e4ccc7a2b8e8-64.png", "ratings": { "version": 5, "overall": { "rating": 1639.7238760230946, "deviation": 81.45456521760907, "volatility": 0.0599971176926176 } }, "ranking": 26.36518487413314, "professional": false, "ui_class": "" }, "description": "トーナメント５回目です", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 70, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 3600, "period_time": 30, "periods": 1 }, "is_open": true, "exclude_provisional": false, "group": { "id": 8154, "name": "KAIT1030", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": true, "member_count": 42, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2021-02-20T04:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2021-02-19T03:19:50.394665Z", "ended": "2021-02-19T06:40:39.098007Z", "start_waiting": "2021-02-19T03:19:49.575310Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 28, "ranked": true }, { "id": 52578, "name": "9x9 D.E. (Chinese Rules)", "director": { "id": 637865, "username": "John.Tromp.Math.Maniac", "country": "nl", "icon": "https://user-uploads.online-go.com/d3a7d663721e94d8a2a5d3846f290611-64.png", "ratings": { "version": 5, "overall": { "rating": 1500, "deviation": 350, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n \n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n \n☆ Does NOT pause on the weekend.\n \n☆ If this sounds like a good time to you, please join us!\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.<BR><BR>", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "chinese", "time_per_move": 45120, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 43200, "initial_time": 172800, "max_time": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 3207, "name": "New Zealand Tournaments", "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 591, "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png" }, "auto_start_on_max": false, "time_start": "2019-10-13T01:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2019-10-13T01:00:31.942597Z", "ended": "2019-12-17T08:16:37.559132Z", "start_waiting": "2019-10-13T01:00:30.826873Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png", "player_count": 15, "ranked": true }, { "id": 110787, "name": "Live 9x9 Double Elimination Tournament 2023-12-19 14:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260730T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-07-30T02:00:22.658406Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-07-30T06:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 41, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2023-12-19T14:30:00.918817Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-12-19T14:31:01.108086Z", "ended": "2023-12-19T14:51:47.332736Z", "start_waiting": "2023-12-19T14:31:00.944160Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", 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"player_count": 5, "ranked": true }, { "id": 93797, "name": "soccer", "director": { "id": 839136, "username": "Soccer is awesome", "country": "_Starfleet", "icon": "https://user-uploads.online-go.com/48e6240dacac17c93414108e4283e0b2-64.png", "ratings": { "version": 5, "overall": { "rating": 891.2546598674192, "deviation": 66.36813968008407, "volatility": 0.06001779878165622 } }, "ranking": 12.251719355114881, "professional": false, "ui_class": "" }, "description": "this is going to be a fun tornament", "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": true, "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7879, "name": "Soccer", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 6, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2022-08-22T20:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2022-08-22T20:00:17.417203Z", "ended": "2022-09-21T22:50:18.455731Z", "start_waiting": "2022-08-22T20:00:17.313234Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 3, "ranked": true }, { "id": 73133, "name": "Live 9x9 Double Elimination Tournament 2021-03-27 22:30", "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, 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