Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=players_start&page=1992
{ "count": 60923, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=players_start&page=1993", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=players_start&page=1991", "results": [ { "id": 65499, "name": "Ludu Go VII", "director": { "id": 15530, "username": "Julko", "country": "pl", "icon": "https://user-uploads.online-go.com/71fa797ba41fd26c92f7ed5fda17613a-64.png", "ratings": { "version": 5, "overall": { "rating": 864.0752257226206, "deviation": 66.69099234839376, "volatility": 0.05927716479341325 } }, "ranking": 11.534755327695938, "professional": false, "ui_class": "supporter" }, "description": "Go is por ludi ĝin !", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "chinese", "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, 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"player_count": 4, "ranked": true }, { "id": 85130, "name": "Live 9x9 Double Elimination Tournament 2022-01-21 10:30", "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:20260903T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-09-03T18:00:32.603552Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, 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"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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"subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-09-03T22:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "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": "2022-01-06T14:30:25.395849Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2022-01-06T14:30:26.673304Z", "ended": "2022-01-06T14:57:13.742148Z", "start_waiting": "2022-01-06T14:30:26.567763Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 4, "ranked": true }, { "id": 84480, "name": "New Year Tournament", "director": { "id": 1097117, "username": "Enyi2022", "country": "ca", "icon": "https://user-uploads.online-go.com/7f5c167f6b3c5f06de70e2ec8386f857-64.png", "ratings": { "version": 5, "overall": { "rating": 1160.931020192916, "deviation": 63.0691306951064, "volatility": 0.06000916388394502 } }, "ranking": 18.371360869295827, "professional": false, "ui_class": "" }, "description": "Have fun with other players on OGS!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": -1, "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": 10850, "name": "Go Game Group", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, 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