Opening in 1961, Portland International Raceway has become the Pacific Northwest’s premier racing venue. The track has boasted many of America’s top road racing series, from the classic years of the SCCA Trans-Am Series to CART from 1984 to 2007. It currently features events for the IndyCar Series, NASCAR Xfinity Series, ARCA Menards Series, and the Trans-Am West Coast Championship.
- Source: iRacing.com