The 2009 Allstate 400 at the Brickyard, the 16th running of the event, was the twenty-first race of the 2009 NASCAR Sprint Cup season and the sixteenth NASCAR race at the Indianapolis Motor Speedway (IMS).

The 160-lap, 400 miles (640 km) event took place on July 26 at the 2.5 miles (4.0 km) IMS located in Speedway, Indiana (a separate town surrounded by Indianapolis).

Juan Pablo Montoya dominated the race leading almost 120 laps, but after a pit penalty while under green flag conditions toward the end of the race, Jimmie Johnson held off a hard charging Mark Martin to claim victory, his third triumph at the storied venue.

The drivers there agreed that the tire wear was much better than last year, mostly because the Car of Tomorrow was not run at IMS in 2007.

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