Sunday 6th July 1969
Dover International Speedway (formerly Dover Downs International Speedway) staged its first race, the Mason-Dixon 300, which was won by Richard Petty. Since opening it has held at least two NASCAR races annually. In addition to NASCAR, the track has also hosted USAC and the Verizon IndyCar Series. The track features one layout, a 1 mile (1.6 km) concrete oval, with 24° banking in the turns and 9° banking on the straights.