Dover International Speedway, known throughout motorsports as "The Monster Mile,” has been the home for the mid-Atlantic’s best auto racing since July 6, 1969, when Richard Petty took the checkered flag in the inaugural “Mason-Dixon 300.” 50 years later, that energy remains at the World’s Fastest One-Mile Oval, with two huge NASCAR tripleheader weekends each year, including visits from the stars of the NASCAR Cup Series, NASCAR Xfinity Series, NASCAR Gander Outdoors Truck Series, and NASCAR K&N Pro Series East. Visit DoverSpeedway.com to learn more.