The Lime Rock Grand Prix (2010 name: Memorial Day Classic) was a sports car race held at Lime Rock Park in Lakeville, Connecticut, United States on the Memorial Day weekend. It had been a part of the Grand-Am Rolex Sports Car Series, SCCA National Sports Car Championship, USAC Road Racing Championship, IMSA GT Championship and United States Road Racing Championship.
References
Lime Rock Grand Prix Wikipedia(Text) CC BY-SA