Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-ended&page=5034
{ "count": 59725, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-ended&page=5035", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-ended&page=5033", "results": [ { "id": 18801, "name": "Blitz 19x19 Elimination Tournament 2016-07-06 21:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260521T170000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-05-21T17:00:16.060649Z", "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": "2026-05-21T21:00:00Z", "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": "2016-07-06T21:30:19.289082Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-07-06T21:30:20.847710Z", "ended": "2016-07-06T22:18:33.085534Z", "start_waiting": "2016-07-06T21:30:20.700408Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 7, "ranked": true }, { "id": 16824, "name": "Tournament!", "director": { "id": 313626, "username": "SirTara", "country": "us", "icon": "https://secure.gravatar.com/avatar/05ad5df02a0d595550bcd2bcdee28b02?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 839.1538337833143, "deviation": 157.25416931998612, "volatility": 0.06000015327769114 } }, "ranking": 10.857252325587663, "professional": false, "ui_class": "" }, "description": "A friendly tournament to start setting up internal ranking or something I guess? I don't know, I just wanted to make one.", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 979, "name": "Chimeron", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 9, "icon": "https://user-uploads.online-go.com/4d9620f5dd1bedb641acde5a68b15dd7-64.png" }, "auto_start_on_max": false, "time_start": "2016-04-25T15:00:00Z", "players_start": 5, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "group", "started": "2016-06-17T15:45:42.883776Z", "ended": "2016-07-06T22:09:27.404221Z", "start_waiting": "2016-06-17T15:45:38.986958Z", "board_size": 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"id": 24, "name": "Double Digit Kyu Room", "summary": "For those of us working our way through to SDK. 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