INDIANAPOLIS (AP) — Portland International Raceway is back on the IndyCar Series schedule in 2018. The Sept. 2 race on the 1.967-mile permanent road course will be IndyCar's first trip to the Oregon track since races were held from 1984-2007 under CART and Champ Car sanction. The race will be operated by Green Savoree Racing Promotions. Portland replaces Watkins Glen, New York, on the schedule.