South Sound Speedway is a 0.375 mi (0.604 km) oval race track with a Figure 8 course located near Grand Mound and Rochester, Washington.

The racetrack, originally called the Olympia-Tenino Speedway,[1] was constructed in 1971 by Dick and Wanda Boness.

[4] The track was purchased in 1995 by the Behn family, and an auto racing parts and tire store would be open on the site in 2002, with a repair shop eventually added.

[4] A wall on the front stretch of the track was raised by one foot before the 2007 season as a safety measure for spectators.

A signature event at the track was the Miller 200, an annual late model super stock race held in the 1990s and 2000s.