The Grand Prix of Portland is an IndyCar Series event and was first held in 1984 at Portland International Raceway in Portland in Oregon, United States. A staple event of CART and the ChampCar World Series calendars, Portland was added to the IndyCar Series schedule in 2018 to the delight of open wheel racing fans everywhere.
|Year||Date||Circuit||Winner||Nationality||Chassis||Engine||Laps||Laps Led||Race Time||Winning Margin||Started|
|2021||12 September 2021||Portland International Raceway||Alex Palou||Spain||Dallara||Honda||110||29||2:07:04.1304||1.2895||1|
|2019||1 September 2019||Portland International Raceway||Will Power||Australia||Dallara||Chevrolet||105||52||1:58:43.0036||2.7885||2|
|2018||2 September 2018||Portland International Raceway||Takuma Sato||Japan||Dallara||Honda||105||25||2:00:09.7537||0.6084||20|