Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=player_count&page=5182
{ "count": 59942, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=5183", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=5181", "results": [ { "id": 105197, "name": "สาระRA!Ls Tour ครั้งที่ 59", "director": { "id": 148806, "username": "โอ๋ชิงหยวน", "country": "th", "icon": "https://user-uploads.online-go.com/d3f8fcc6dbd4915bc123f62b337be552-64.png", "ratings": { "version": 5, "overall": { "rating": 1490.8997884704036, "deviation": 65.02058179855767, "volatility": 0.05948891233529572 } }, "ranking": 24.16250782197602, "professional": false, "ui_class": "" }, "description": "RESPECT.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 8890, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "correspondence", "pause_on_weekends": true, "total_time": 1123200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 2571, "name": "Go World Wide", "summary": "enjoy", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 90, "icon": "https://user-uploads.online-go.com/889d994a8e18efb0db03c85b562aaad1-64.png" }, "auto_start_on_max": false, "time_start": "2023-08-13T03:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 24, "max_ranking": 32, "analysis_enabled": true, "exclusivity": "open", "started": "2023-08-11T02:28:48.213178Z", "ended": "2023-10-05T00:12:58.982845Z", "start_waiting": "2023-08-11T02:28:47.680853Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/889d994a8e18efb0db03c85b562aaad1-15.png", "player_count": 10, "ranked": true }, { "id": 106306, "name": "Correspondence 9x9 RoundRobin 2023-08-11 19:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260616T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-06-16T19:00:19.521551Z", "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": "2026-06-19T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "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": "2023-08-11T19:00:54.979236Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2023-08-11T19:00:55.671935Z", "ended": "2023-09-02T20:13:18.820596Z", "start_waiting": "2023-08-11T19:00:55.164196Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 116131, "name": "19x19 Open League #53", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1347.1016385930843, "deviation": 70.11113679728197, "volatility": 0.06021097414481852 } }, "ranking": 21.814531284423843, "professional": false, "ui_class": "" }, "description": "Open league for everyone. 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null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 10, "ranked": true }, { "id": 107096, "name": "Europe Go #1", "director": { "id": 1182846, "username": "Smartfox", "country": "un", "icon": "https://user-uploads.online-go.com/27e2cbb60e6e5017971b0a1e7392ce05-64.png", "ratings": { "version": 5, "overall": { "rating": 1440.2563930454246, "deviation": 71.61347756222665, "volatility": 0.060512765640676876 } }, "ranking": 23.36247451639933, "professional": false, "ui_class": "" }, "description": "Have a nice game and learn much", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 259200, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": true, "per_move": 259200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 13537, "name": "Europe Go", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 10, "icon": "https://user-uploads.online-go.com/992d9f34129e2d028bc7b7c8a910e8b5-64.png" }, "auto_start_on_max": true, "time_start": "2023-09-09T08:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2023-09-09T08:00:55.476610Z", "ended": "2023-11-29T02:17:56.617702Z", "start_waiting": "2023-09-09T08:00:55.318292Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/992d9f34129e2d028bc7b7c8a910e8b5-15.png", "player_count": 10, "ranked": true }, { "id": 106090, "name": "Correspondence 9x9 RoundRobin 2023-08-05 19:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 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