Built in 1947 by H. Clay Earles, the Martinsville Speedway was one of the first oval tracks in NASCAR. It has hosted a NASCAR event every year since its opening in 1948. Consisting of 800-feet straightaways and short, tight, treacherous turns, the track is one of the shortest in NASCAR at just over a half-mile in length. It has hosted races such as the Old Dominion 500 and the STP 500.