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Race results: Sonoma Raceway
| Pos | Num | Driver | C/E/T | Race time/Split | Pit stops | Status | Grid pos |
| 1 | 28 | Ryan Hunter-Reay | D/H/F | 2:02:19.1667 | 3 | Running | 1 |
| 2 | 9 | Scott Dixon | D/H/F | +2.7573 | 3 | Running | 2 |
| 3 | 12 | Will Power | D/C/F | +3.6550 | 3 | Running | 7 |
| 4 | 22 | Simon Pagenaud | D/C/F | +4.6306 | 3 | Running | 8 |
| 5 | 98 | Marco Andretti | D/H/F | +19.8030 | 3 | Running | 4 |
| 6 | 18 | Sebastien Bourdais | D/H/F | +21.6393 | 3 | Running | 11 |
| 7 | 27 | Alexander Rossi | D/H/F | +28.3778 | 5 | Running | 6 |
| 8 | 1 | Josef Newgarden | D/C/F | +34.6288 | 3 | Running | 3 |
| 9 | 8 | Patricio O’Ward (R) | D/C/F | +42.8662 | 3 | Running | 5 |
| 10 | 10 | Ed Jones | D/H/F | +44.2254 | 3 | Running | 14 |
| 11 | 39 | Santino Ferrucci (R) | D/H/F | +44.6273 | 4 | Running | 20 |
| 12 | 14 | Tony Kanaan | D/C/F | +1:00.4138 | 3 | Running | 18 |
| 13 | 20 | Jordan King (R) | D/C/F | +1:04.0637 | 3 | Running | 25 |
| 14 | 26 | Zach Veach (R) | D/H/F | +1:05.4899 | 4 | Running | 10 |
| 15 | 5 | James Hinchcliffe | D/H/F | +1:12.8026 | 3 | Running | 15 |
| 16 | 19 | Pietro Fittipaldi (R) | D/H/F | +1:14.2459 | 3 | Running | 13 |
| 17 | 60 | Jack Harvey (R) | D/H/F | +1:15.6462 | 3 | Running | 16 |
| 18 | 6 | Carlos Munoz | D/H/F | +1:18.6345 | 3 | Running | 22 |
| 19 | 4 | Matheus Leist (R) | D/C/F | +1:22.3819 | 4 | Running | 23 |
| 20 | 88 | Colton Herta (R) | D/C/F | +1:23.4673 | 3 | Running | 19 |
| 21 | 59 | Max Chilton | D/C/F | +1 lap | 3 | Running | 21 |
| 22 | 23 | Charlie Kimball | D/C/F | +9 laps | 4 | Running | 24 |
| 23 | 15 | Graham Rahal | D/H/F | +19 laps | 3 | Running | 9 |
| 24 | 21 | Spencer Pigot | D/C/F | +47 laps | 3 | Mechanical | 17 |
| 25 | 30 | Takuma Sato | D/H/F | +70 laps | 1 | Mechanical | 12 |
(C)hassis: D=Dallara | (E)ngine: C=Chevy, H=Honda | (T)yre: F=Firestone
