Longacres was a racetrack in the northwest United States, located in Renton, Washington, a suburb southeast of Seattle. From 1933 to 1992, it was the home of thoroughbred racing in western Washington and was the longest continually operated track on the West Coast. Longacres was the first racetrack on the coast based on parimutuel betting. The land was sold to the Boeing Company and the track closed 25 years ago in September 1992. The racetrack was also temporarily used as a prison camp during the Japanese internment of World War II..
The track was located just east of Tukwila, immediately south of I-405, midway between I-5 and Highway 167.
After a three-year absence, the new Emerald Downs in Auburn opened in 1996 as the new home of horse racing in western Washington. It currently hosts the Longacres Mile Handicap, a race first run in 1935. From 1993-95, the race was run at Yakima Meadows racetrack in Yakima.
Coordinates: 47°27′39″N 122°14′13″W / 47.46083°N 122.23694°W