Cooper Tires Indy Lights Grand Prix of Portland Race 2
Portland International Raceway
1.964 Mile Road Course
35 Laps/68.74 Miles
September 2, 2018
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status | Points |
| 1 | 7 | Patricio O'Ward | 27 | Riverina CDMX Mexico City | Dallara IL-15 | Mazda MZR-R | 35 | 0:40:43.0407 101.293 | 31 |
| 2 | 2 | Aaron Telitz | 9 | Rice Lake Weighing Systems | Dallara IL-15 | Mazda MZR-R | 35 | 0:40:50.8262 100.972 | 25 |
| 3 | 3 | Santiago Urrutia | 5 | BSE | Dallara IL-15 | Mazda MZR-R | 35 | 0:40:56.3100 100.746 | 22 |
| 4 | 4 | Colton Herta | 98 | Deltro Energy | Dallara IL-15 | Mazda MZR-R | 35 | 0:40:56.7419 100.729 | 19 |
| 5 | 5 | Victor Franzoni | 23 | Mazda | Dallara IL-15 | Mazda MZR-R | 35 | 0:40:57.1672 100.711 | 17 |
| 6 | 8 | Heamin Choi | 7 | Wongdon | Dallara IL-15 | Mazda MZR-R | 34 | Flagged | 15 |
| 7 | 6 | Dalton Kellett | 28 | K-Line Insulators USA | Dallara IL-15 | Mazda MZR-R | 32 | Flagged | 14 |
| 8 | 1 | Ryan Norman | 48 | Journey | Dallara IL-15 | Mazda MZR-R | 1 | Wrecked | 14 |