2015 Indy Grand Prix of Sonoma - Free practice 1 Results
Track Sonoma Raceway
City Sonoma, California
Type Roadcourse
Length 2.310 mi
Trackrecord 1:15.520
Laps 85
| P | Driver | Nat | Time | GP | L |
|---|---|---|---|---|---|
| 1 | Will Power Penske |  | 1:17.486 | 0 | |
| 2 | Graham Rahal Rahal Letterman |  | 1:17.618 +0.133 | +0.133 | 0 |
| 3 | Ryan Hunter-Reay Andretti Autosport | | 1:17.642 +0.157 | +0.024 | 0 |
| 4 | Gabby Chaves Bryan Herta Autosport |  | 1:18.239 +0.753 | +0.596 | 0 |