Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=board_size&page=3415
{ "count": 61006, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=3416", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=3414", "results": [ { "id": 608, "name": "mit185's mini-tournament 2", "director": { "id": 20728, "username": "mit185", "country": "gb", "icon": "https://secure.gravatar.com/avatar/3f33ddd2dff1a0f8e5f52119642f1389?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1429.6611120352234, "deviation": 69.228471054849, "volatility": 0.06001193040974146 } }, "ranking": 23.191541470882637, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 78, "name": "OGS Mini 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"2025-09-18T06:48:35.024096Z", "ended": "2025-09-18T07:57:47.064185Z", "start_waiting": "2025-09-18T06:48:34.964226Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 57815, "name": "test tournament", "director": { "id": 693837, "username": "skywinder", "country": "_United_Federation_of_Planets", "icon": "https://user-uploads.online-go.com/2ea110686fe07ce7fc936d3e87889c85-64.png", "ratings": { "version": 5, "overall": { "rating": 1262.8935032645595, "deviation": 62.58888524686657, "volatility": 0.06002299956295034 } }, "ranking": 20.320202702568142, "professional": false, "ui_class": "" }, "description": "test tournament", "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": 4741, "name": "Go King's group", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 3, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-03-22T08:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-03-22T11:40:44.883450Z", "ended": "2020-04-16T19:04:51.992466Z", "start_waiting": "2020-03-22T11:40:44.686008Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 132517, "name": "Live 19x19 Swiss Tournament 2025-09-18 08:30", "director": { "id": 4, "username": "matburt", "country": 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