There are numerous parking areas close to Aces Stadium. All of the casino garages are available, though they've taken to charging for parking on game days. Metered street parking is free after 6 p.m. and on Sundays and holidays.
Reno Aces Baseball Stadium Parking Map
(Click image to enlarge)
Downtown parking for the Reno Aces Baseball Stadium. (Click image to enlarge)
Map image courtesy City of Reno