Williams Grove Speedway is a half-mile automobile dirt racing track located in Mechanicsburg, Pennsylvania, USA. The speedway opened on May 21, 1939, it has been owned by the Hughes family for over 50 years and has hosted many of the most notable national touring series and some of those most prestigious races in the country. The speedway is entering its 81st year of operation, with racing every Friday from March to October and other special events. One of these special events is the $75,000 to win National Open for sprint cars sanctioned by the World of Outlaws racing series held in late September or early October each year.