Royal Purple Synthetic Oil
Grand Prix of
Indianapolis Race 1
Indianapolis Motor Speedway
2.439 Mile Road Course
30 Laps/73.17 Miles
May 11, 2018
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status | Points |
| 1 | 2 | Colton Herta | 98 | Deltro Energy | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:07.7629 112.197 | 31 |
| 2 | 5 | Santiago Urrutia | 5 | BSE | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:12.9141 111.951 | 25 |
| 3 | 4 | Aaron Telitz | 9 | Rice Lake Weighing Systems | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:13.4653 111.925 | 22 |
| 4 | 1 | Patricio O'Ward | 27 | Riverina CDMX Mexico City | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:15.6649 111.821 | 20 |
| 5 | 6 | Ryan Norman | 48 | Journey | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:16.2482 111.793 | 17 |
| 6 | 3 | Victor Franzoni | 23 | Mazda | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:17.4311 111.737 | 15 |
| 7 | 7 | Dalton Kellett | 28 | K-Line Insulators USA | Dallara IL-15 | Mazda MZR-R | 30 | 0:39:44.9262 110.449 | 14 |
| -- | -- | Alfonso Celis, Jr. | 7 | Simple Bespoke/Cartesiano Hotels | Dallara IL-15 | Mazda MZR-R | -- | Did not appear |