Toronto provides MLB with access to its on-field operations department, and the decision is based on the same criteria the Blue Jays use during the regular season. Friday's forecast for Game 2 didn't appear to include any rain but the temperatures were expected to be around 15 degrees Celsius (57 Fahrenheit).
According to Blue Jays vice president of business operations Stephen Brooks, 15 degrees Celsius is "starting to push the roof's temperature limit. It could be the sunniest of days but that is just the facts." Toronto has been looking to upgrade the retractable roof's mechanisms to withstand colder temperatures.