Portland International Raceway

Portland International Raceway (PIR) in Oregon hosts IndyCar, Formula E, NASCAR Xfinity, and other races. It has two layouts: 1.967 miles with the "Shelton Chicane" and 1.915 miles without it. Notable winners include Mario Andretti and Álex Palou. PIR also features a dragstrip and motocross track, and the city aims for carbon neutrality despite using leaded gasoline in drag races.