Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=board_size&page=81
{ "count": 59420, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=82", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=board_size&page=80", "results": [ { "id": 58640, "name": "Easter Tournament", "director": { "id": 748408, "username": "Sports for Life", "country": "us", "icon": "https://user-uploads.online-go.com/c6258ee239e8c0c6c2c9f59005725d81-64.png", "ratings": { "version": 5, "overall": { "rating": 774.2935361093267, "deviation": 71.4033398364045, "volatility": 0.059906278529480765 } }, "ranking": 8.994996966313037, "professional": false, "ui_class": "" }, "description": "Starts on Easter", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "chinese", "time_per_move": 88320, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 172800, "max_time": 345600 }, "is_open": true, "exclude_provisional": false, "group": { "id": 4456, "name": "Our Go House", "summary": "Hello this is Our Go House 🔰🔰\n😃🙃😊👋 YEET", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 160, "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-64.png" }, "auto_start_on_max": false, "time_start": "2020-04-08T23:40:00Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 6, "analysis_enabled": true, "exclusivity": "open", "started": "2020-04-08T23:40:26.417064Z", "ended": "2020-06-04T18:42:16.417299Z", "start_waiting": "2020-04-08T23:40:26.092421Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-15.png", "player_count": 4, "ranked": true }, { "id": 76694, "name": "K2 partidas de go", "director": { "id": 88120, "username": "satoshi84", "country": "mx", "icon": "https://user-uploads.online-go.com/6a6404f3dd53bce3fc1e4a88fb357e2e-64.png", "ratings": { "version": 5, "overall": { "rating": 1136.7959829193692, "deviation": 78.40429708623937, "volatility": 0.06016044531576248 } }, "ranking": 17.885013568829635, "professional": false, "ui_class": "" }, "description": "vamos a jugar go", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 23, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 300, "period_time": 20, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5581, "name": "Colegio Serapio Rendón // Kinder - Primaria", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 200, "icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-64.png" }, "auto_start_on_max": false, "time_start": "2021-06-24T14:13:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2021-06-24T14:13:31.158828Z", "ended": "2021-06-24T14:47:43.916382Z", "start_waiting": "2021-06-24T14:13:31.015639Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-15.png", "player_count": 4, "ranked": true }, { "id": 61544, "name": "Los Koopalings", "director": { "id": 748142, "username": "Camaleonkecleon", "country": "co", "icon": "https://user-uploads.online-go.com/09a771660c97b0be8ae85ce58b4f223e-64.png", "ratings": { "version": 5, "overall": { "rating": 921.536484935623, "deviation": 67.08333781650326, "volatility": 0.06005378484933887 } }, "ranking": 13.02521107055442, "professional": false, "ui_class": "" }, "description": "Larry Morton Wendy Roy Iggy Lemmy luduig. Esos son los koopalings", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 27, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 210, "period_time": 25, "periods": 1 }, "is_open": true, "exclude_provisional": true, "group": { "id": 4806, "name": "COIN Centro de Inteligencias", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": true, "member_count": 65, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-06-06T00:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-06-05T23:58:12.771692Z", "ended": "2020-06-06T00:25:08.689586Z", "start_waiting": "2020-06-05T23:58:12.609581Z", "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": 83953, "name": "new year duh", "director": { "id": 818383, "username": "SubToMixzory", "country": "vi", "icon": "https://user-uploads.online-go.com/c6aa9dd0c30d28446d4dcafe2b6186e9-64.png", "ratings": { "version": 5, "overall": { "rating": 1269.4299654571807, "deviation": 64.69887391357838, "volatility": 0.0601483836856834 } }, "ranking": 20.439713055563516, "professional": false, "ui_class": "" }, "description": "new year", "schedule": null, "title": null, "tournament_type": "double_elimination", "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": false, "group": { "id": 8382, "name": 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"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:20260421T100000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-21T10:00:38.800683Z", "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": "2026-04-21T14:00:00Z", "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": "2021-01-21T10:30:51.079813Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-01-21T10:30:53.074582Z", "ended": "2021-01-21T11:22:39.931408Z", "start_waiting": "2021-01-21T10:30:52.508765Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", 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"2020-12-21T15:29:41.936722Z", "start_waiting": "2020-12-21T14:30:19.471785Z", "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": 69233, "name": "9x9 round robin for improving life & dead", "director": { "id": 854600, "username": "Dennis H", "country": "nl", "icon": "https://secure.gravatar.com/avatar/8831ff54444dab48d7b94ba5565a396d?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1398.9523162891342, "deviation": 63.02745671877982, "volatility": 0.05992617775704167 } }, "ranking": 22.688866523237937, "professional": false, "ui_class": "" }, "description": "Games on 9x9 board without analysis is a good way for improving our life & dead reading, and this tournament is easy way to quickly play some games!", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 172800, "time_control_parameters": { 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