| Race details | |
|---|---|
| 16th round of the 2018 IndyCar Series season | |
 Portland International Raceway Track Layout | |
| Date | September 2, 2018 |
| Official name | Grand Prix of Portland |
| Location | Portland International Raceway |
| Course | Permanent Road Course 1.964 mi / 3.142 km |
| Distance | 105 laps 206.220 mi / 329.952 km |
| Pole position | |
| Driver | Will Power (Team Penske) |
| Time | 57.3467 |
| Fastest lap | |
| Driver | Carlos Muñoz (Schmidt Peterson Motorsports) |
| Time | 58.7403 (on lap 19 of 105) |
| Podium | |
| First | Takuma Sato (Rahal Letterman Lanigan Racing) |
| Second | Ryan Hunter-Reay (Andretti Autosport) |
| Third | Sébastien Bourdais (Dale Coyne Racing with Vasser-Sullivan) |
The 2018 Grand Prix of Portland was the 16th And penultimate round of the 2018 IndyCar Series season. The race was held on September 2 at Portland International Raceway, in Portland, Oregon. 2018 Indy 500 champion Will Power qualified on pole position,[1] while 2017 Indy 500 champion Takuma Sato took victory in the 105-lap race.[2]
- ^ Malsher, David (September 1, 2018). "Portland IndyCar: Power grabs pole, Dixon will start 11th". Motorsport.com. Motorsport Network. Retrieved September 16, 2018.
- ^ Malsher, David (September 2, 2018). "Portland IndyCar: Sato wins wild race, Dixon boosts points lead". Motorsport.com. Motorsport Network. Retrieved September 16, 2018.