The track began as a five-eighths-mile (one km) clay oval in 1924 on the site of a field in north Portland. The track hosted big cars, midget cars, and stock cars before the suspension of racing during World War II.[1]
The track was paved in 1946 as a half-mile oval. NASCAR sanctioning came to Portland after Western Speedways, Inc. leased the track in 1984. It hosted four NASCAR Craftsman Truck Series races from 1995 to 1998.[2]Mike Skinner and Ron Hornaday Jr. won at Portland during their championship seasons, 1995 and 1996 respectively.[2]Rich Bickle and Stacy Compton won the final two events there.[2]
The last race on the pavement surface was on July 30, 2000.[1] The track was converted to a clay surface and hosted the World of Outlaws Sprint Cars in 2000 and 2001.[5][6]