Today's NASCAR Number is 603
603: The record number of miles run in a NASCAR Sprint Cup Series event. It happened in the 2011 Coca-Cola 600, the only time a green-white-checkered-flag finish has forced NASCAR’s longest race to overtime. The two extra laps at the 1.5-mile track proved the undoing of Dale Earnhardt Jr., who ran out of fuel in the last corner during the final two-lap dash. The beneficiary was Kevin Harvick, who crossed the finish line .703 seconds ahead of runner-up David Ragan.