The 2011 Brickyard 400 presented by BigMachineRecords.com, the 18th running of the event, was a NASCAR Sprint Cup Series stock car race held on July 31, 2011 at Indianapolis Motor Speedway in Indianapolis, Indiana. Contested over 160 laps on the 2.5-mile (4.0 km) asphalt rectangular oval, it was the 20th race of the 2011 Sprint Cup Series season.