The 2018 Grand Prix of Portland was Round 16 of the 2018 Verizon IndyCar Series. The event was held at Portland International Raceway in Oregon, United States on 2 September 2018. Will Power started on pole position and Takuma Sato was the race winner. This was the first running of the Grand Prix of Portland as part of the IndyCar Series schedule.
GRAND PRIX OF PORTLAND Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Started | Laps | Total Time | Laps Led | Status | Points | Avg. Speed | Pit Stops |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 30 | Takuma Sato | Dallara | Honda | Firestone | 20 | 105 | 02:00:09.7537 | 25 | Running | 51 | 102.971 | 3 |
| 2 | 28 | Ryan Hunter-Reay | Dallara | Honda | Firestone | 5 | 105 | 02:00:10.3621 | 19 | Running | 41 | 102.962 | 2 |
| 3 | 18 | Sebastien Bourdais | Dallara | Honda | Firestone | 4 | 105 | 02:00:11.5803 | - | Running | 35 | 102.944 | 4 |
| 4 | 21 | Spencer Pigot | Dallara | Chevrolet | Firestone | 17 | 105 | 02:00:14.3094 | - | Running | 32 | 102.905 | 3 |
| 5 | 9 | Scott Dixon | Dallara | Honda | Firestone | 11 | 105 | 02:00:15.0752 | - | Running | 30 | 102.895 | 4 |
| 6 | 22 | Simon Pagenaud | Dallara | Chevrolet | Firestone | 22 | 105 | 02:00:21.2142 | - | Running | 28 | 102.807 | 4 |
| 7 | 23 | Charlie Kimball | Dallara | Chevrolet | Firestone | 25 | 105 | 02:00:21.7594 | - | Running | 26 | 102.799 | 4 |
| 8 | 27 | Alexander Rossi | Dallara | Honda | Firestone | 3 | 105 | 02:00:23.1306 | 32 | Running | 27 | 102.78 | 3 |
| 9 | 19 | Pietro Fittipaldi | Dallara | Honda | Firestone | 16 | 105 | 02:00:28.1290 | - | Running | 22 | 102.709 | 3 |
| 10 | 1 | Josef Newgarden | Dallara | Chevrolet | Firestone | 2 | 105 | 02:00:29.5581 | 8 | Running | 21 | 102.688 | 3 |
| 11 | 14 | Tony Kanaan | Dallara | Chevrolet | Firestone | 24 | 105 | 02:00:31.8899 | - | Running | 19 | 102.655 | 3 |
| 12 | 6 | Carlos Munoz | Dallara | Honda | Firestone | 14 | 105 | 02:00:32.4606 | - | Running | 18 | 102.647 | 3 |
| 13 | 88 | Gabby Chaves | Dallara | Chevrolet | Firestone | 21 | 105 | 02:00:33.4675 | - | Running | 17 | 102.633 | 3 |
| 14 | 4 | Matheus Leist | Dallara | Chevrolet | Firestone | 19 | 105 | 02:00:39.5495 | - | Running | 16 | 102.547 | 3 |
| 15 | 20 | Jordan King | Dallara | Chevrolet | Firestone | 12 | 105 | 02:00:41.8889 | - | Running | 15 | 102.514 | 3 |
| 16 | 60 | Jack Harvey | Dallara | Honda | Firestone | 13 | 105 | 02:00:42.1728 | - | Running | 14 | 102.51 | 3 |
| 17 | 32 | Alfonso Celis Jr | Dallara | Chevrolet | Firestone | 23 | 105 | 02:00:58.5575 | - | Running | 13 | 102.278 | 4 |
| 18 | 59 | Max Chilton | Dallara | Chevrolet | Firestone | 15 | 105 | 02:01:04.9660 | 10 | Running | 13 | 102.188 | 3 |
| 19 | 26 | Zach Veach | Dallara | Honda | Firestone | 6 | 104 | 02:00:45.9269 | - | Running | 11 | 101.481 | 3 |
| 20 | 39 | Santino Ferrucci | Dallara | Honda | Firestone | 18 | 101 | 02:00:42.3067 | - | Running | 10 | 98.603 | 3 |
| 21 | 12 | Will Power | Dallara | Chevrolet | Firestone | 1 | 98 | 02:00:43.9627 | 11 | Running | 11 | 95.652 | 4 |
| 22 | 5 | James Hinchcliffe | Dallara | Honda | Firestone | 7 | 76 | 01:53:35.4864 | - | Running | 8 | 78.843 | 4 |
| 23 | 15 | Graham Rahal | Dallara | Honda | Firestone | 10 | 4 | 01:28:13.1705 | - | Contact | 7 | 5.343 | 1 |
| 24 | 10 | Ed Jones | Dallara | Honda | Firestone | 8 | 0 | 00:00:00.9205 | - | Contact | 6 | 0 | 0 |
| 25 | 98 | Marco Andretti | Dallara | Honda | Firestone | 9 | 0 | 00:00:01.0311 | - | Contact | 5 | 0 | 0 |