Retractable Roof - Gameplay With Retractable Roofs

Gameplay With Retractable Roofs

In North American major sports leagues, specific rules exist governing the movement of retractable roofs before and during gameplay. These rules vary between the NFL and MLB, as well as from stadium to stadium. In general, if a game begins with the roof open and weather conditions become less favorable, the home team may, with the approval of the field officials and visiting team, request the roof be closed. (Such a scenario is generally rare, due the accuracy of modern weather forecasting and a general error on the side of caution that keeps a roof closed if there is any significant threat of precipitation.) Depending on the stadium, weather or gameplay conditions, and the judgment of the officials, play may or may not continue until the roof is fully closed. If the game begins with the roof closed, it may be opened under some circumstances depending on the venue. If it is closed after the game begins, typically it must remain closed for the duration of the game.