How long is the Portland Grand Prix?
110 LAPS | 216.04 Miles. How long is the Portland International Raceway? The Portland International Raceway Track The road course has two configurations: a nine-turn course with a lap length of 1.915 miles (3.08 km) and a 12-turn course with a chicane (S-curve) and a total length of 1.967 miles (3.17 km). The facility also…