Pacific Raceways is a mixed-use road racing facility in Kent, Washington. The race track was constructed in 1959 and opened in 1960. The track was originally named Pacific Raceways, then became known as Seattle International Raceways in 1976. After the landowner regained control of the track in 2002, the name was reverted to Pacific Raceways. The track hosted a two heat race weekend of the USAC Championship Car series in 1969. The first heat was won by Mario Andretti and the second was won by Al Unser.