Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=player_count&page=1254
{ "count": 59412, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=1255", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=1253", "results": [ { "id": 79850, "name": "Blitz 19x19 Elimination Tournament 2021-09-08 17:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260220T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-02-20T01:00:39.375144Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-02-20T05:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2021-09-08T17:30:38.827933Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-09-08T17:30:40.058206Z", "ended": "2021-09-08T17:53:07.414179Z", "start_waiting": "2021-09-08T17:30:39.913028Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 4, "ranked": true }, { "id": 78097, "name": "(๑•̀ᄇ•́)و ✧ Go Go Go", "director": { "id": 1018289, "username": "Viola Lee", "country": "un", "icon": "https://user-uploads.online-go.com/30595101e850d5f797929c9ac8ec5065-64.png", "ratings": { "version": 5, "overall": { "rating": 1121.7541151308521, "deviation": 66.80372769925062, "volatility": 0.0601494900201195 } }, "ranking": 17.576652564855472, "professional": false, "ui_class": "" }, "description": "1級～30級 或 其他「職業」都可以參賽。", "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": true, "group": { "id": 9670, "name": "(*˘︶˘*).。.:*♡", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 8, "icon": "https://user-uploads.online-go.com/06b67253b43f9eb64e5b81dbc5e7f18c-64.png" }, "auto_start_on_max": false, "time_start": "2021-07-27T16:00:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-07-28T19:54:02.324003Z", "ended": "2021-09-08T17:04:41.742221Z", "start_waiting": "2021-07-28T19:54:02.186020Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/06b67253b43f9eb64e5b81dbc5e7f18c-15.png", "player_count": 4, "ranked": true }, { "id": 78994, "name": "Basic Cup Group1", "director": { "id": 743935, "username": "陳天予", "country": "hk", "icon": "https://user-uploads.online-go.com/92bd8f7ccd9c9c665e771833ace80447-64.png", "ratings": { "version": 5, "overall": { "rating": 1849.7790445836285, "deviation": 72.8593185138491, "volatility": 0.05999399202989177 } }, "ranking": 29.155647380662366, "professional": false, "ui_class": "" }, "description": "you can join the Basic Cup.\n10kyu+please go to Group2,3", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 40, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 900, "period_time": 30, "periods": 5 }, "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. 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"https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2021-08-11T04:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-08-11T18:33:53.893039Z", "ended": "2021-09-08T05:26:14.982793Z", "start_waiting": "2021-08-11T18:33:53.617470Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 75092, "name": "Attack on go 1", "director": { "id": 750171, "username": "KHAE", "country": "th", "icon": "https://user-uploads.online-go.com/56d33c7e8e7ce67f73aa947fd300727b-64.png", "ratings": { "version": 5, "overall": { "rating": 1287.039113571418, "deviation": 62.03202260607443, "volatility": 0.06028614816374175 } }, "ranking": 20.758635924188564, "professional": false, "ui_class": "" }, "description": 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"2021-09-07T14:06:49.707489Z", "start_waiting": "2021-05-13T14:40:47.671421Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/6ffe0a812aae7de8c6ba62e7ccb1a6c2-15.png", "player_count": 4, "ranked": true }, { "id": 79812, "name": "Blitz 19x19 Elimination Tournament 2021-09-07 13:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260220T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-02-20T01:00:39.375144Z", 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