| Podiuns |
Romain Grosjean |
| Race |
Team / Car |
Grid |
Position |
Laps |
Reason |
| 2021 |
| Indianapolis G.P. |
Dale Coyne w/Rick Ware / Dallara-Honda |
1 |
2 |
85 |
running |
| Indianapolis G.P. |
Dale Coyne w/Rick Ware / Dallara-Honda |
3 |
2 |
85 |
running |
| Laguna Seca |
Dale Coyne w/Rick Ware / Dallara-Honda |
13 |
3 |
95 |
running |
| Race |
Team / Car |
Grid |
Position |
Laps |
Reason |
| 2022 |
| Long Beach |
Andretti Autosport / Dallara-Honda |
6 |
2 |
85 |
running |
| Race |
Team / Car |
Grid |
Position |
Laps |
Reason |
| 2023 |
| Long Beach |
Andretti Autosport / Dallara-Honda |
3 |
2 |
85 |
running |
| Birmingham |
Andretti Autosport / Dallara-Honda |
1 |
2 |
90 |
running |
|
|
| |