The Portland Grand Prix was a sports car race held at the

Portland International Raceway Portland International Raceway (PIR) is a motorsport facility in Portland in the U.S. state of Oregon. It is part of the Delta Park complex on the former site of Vanport, just south of the Columbia River. It lies west of the Delta Park/Van ...

Portland, Oregon Portland ( ) is the List of cities in Oregon, most populous city in the U.S. state of Oregon, located in the Pacific Northwest region. Situated close to northwest Oregon at the confluence of the Willamette River, Willamette and Columbia River, ...

from 1978 until 2006. It began as a round of the

IMSA GT Championship IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States and occasionally in Canada. History The series was founded in 1969 by John and Peggy Bishop, and Bill ...

, and became an

American Le Mans Series The American Le Mans Series (ALMS) was a sports car racing series based in the United States and Canada. It consisted of a series of Endurance racing (motorsport), endurance and sprint races, and was created in the spirit of the 24 Hours of Le M ...

race in 1999.

Winners

External links

World Sports Racing Prototypes: IMSA archiveUltimate Racing History: Portland archive
Recurring sporting events established in 1978 Recurring events disestablished in 2006 1978 establishments in Oregon Sports in Portland, Oregon {{Oregon-sport-stub