Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=board_size&page=682
{ "count": 59389, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=683", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=681", "results": [ { "id": 101970, "name": "DDK tournament", "director": { "id": 1250299, "username": "Caballol", "country": "un", "icon": "https://secure.gravatar.com/avatar/6110fc2fa7b9caae4d3363291077ec93?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1531.6591983772223, "deviation": 61.27499141218141, "volatility": 0.06001975643601352 } }, "ranking": 24.78690426581728, "professional": false, "ui_class": "" }, "description": "Have fun\n\"Victorious warriors win first and then go to war, while defeated warriors go to war first and then seek to win\" Sun Tzu\n\n\"Ponder and deliberate before you make a move\" Sun Tzu", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 107733, "time_control_parameters": { 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"2019-02-08T10:30:17.651973Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 8, "ranked": true }, { "id": 106817, "name": "Correspondence 9x9 RoundRobin 2023-08-26 19:00", "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": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260417T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-17T19:00:56.701536Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, 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true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2019-11-04T14:30:52.269204Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2019-11-04T14:31:55.650801Z", "ended": "2019-11-04T15:17:57.902113Z", "start_waiting": "2019-11-04T14:31:53.645071Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 13, "ranked": true }, { "id": 109304, "name": "Live 9x9 Double Elimination Tournament 2023-11-06 18:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260418T100000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-18T10:00:56.540899Z", "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": "2026-04-18T14:00:00Z", "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": "2023-11-06T18:30:14.348595Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-11-06T18:31:14.648122Z", "ended": "2023-11-06T19:46:07.098142Z", "start_waiting": "2023-11-06T18:31:14.387502Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 12, "ranked": true }, { "id": 106829, "name": "9x9 Open D.E. 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