thank you and to everyone else than responded.doug stewart said:From the Tigers website...
GATES OPEN
The gates to Comerica Park open 1-1/2 hours prior to the scheduled game time unless otherwise advertised. Guests are invited to arrive early and watch batting and infield practice, enjoy rides on the Ferris Wheel and Carousel, historical displays, the food offerings in the Big Cat Court and Brushfire Grill, as well as the pre-game ceremonies. The Tiger Club, Tiger Den Lounge, Beer Hall and Suite Levels open two hours prior to the scheduled game time.