2005 Grand Prix of Sonoma

The 2005 Grand Prix of Sonoma was the fifth race for the 2005 American Le Mans Series season, held at Infineon Raceway. It took place on July 17, 2005. It was the last ALMS race held at Infineon. It was the final ALMS race held at Sonoma, the event being transferred to the Rolex Sports Car Series the following year.