| Pos. | Nr. | Fahrer | Team | Motor | Zeit | auf F. |
|---|---|---|---|---|---|---|
| 1 | 28 | R. Hunter-Reay | Andretti Global | Honda | 1:17.715 | |
| 2 | 9 | S. Dixon | Chip Ganassi Racing | Chevrolet | 1:17.899 | 0.184 |
| 3 | 10 | T. Kanaan | Chip Ganassi Racing | Chevrolet | 1:18.190 | 0.475 |
| 4 | 3 | H. Castroneves | Team Penske | Chevrolet | 1:18.273 | 0.558 |
| 5 | 12 | W. Power | Team Penske | Chevrolet | 1:18.405 | 0.690 |
| 6 | 8 | R. Briscoe | Chip Ganassi Racing | Chevrolet | 1:18.406 | 0.691 |
| 7 | 27 | J. Hinchcliffe | Andretti Global | Honda | 1:18.522 | 0.807 |
| 8 | 67 | J. Newgarden | Sarah Fisher Hartman Racing | Honda | 1:18.542 | 0.827 |
| 9 | 11 | S. Bourdais | KV Racing | Chevrolet | 1:18.550 | 0.835 |
| 10 | 25 | M. Andretti | Andretti Global | Honda | 1:18.575 | 0.860 |
| 11 | 83 | C. Kimball | Chip Ganassi Racing | Chevrolet | 1:18.728 | 1.013 |
| 12 | 2 | J. Montoya | Team Penske | Chevrolet | 1:18.796 | 1.081 |
| 13 | 14 | T. Sato | A.J. Foyt Enterprises | Honda | 1:18.844 | 1.129 |
| 14 | 34 | C. Munoz | Andretti Global | Honda | 1:18.856 | 1.141 |
| 15 | 19 | J. Wilson | Dale Coyne Racing | Honda | 1:18.959 | 1.244 |
| 16 | 77 | S. Pagenaud | Arrow McLaren | Honda | 1:18.993 | 1.278 |
| 17 | 15 | G. Rahal | Rahal Letterman Lanigan Racing | Honda | 1:18.999 | 1.284 |
| 18 | 7 | M. Aljoschin | Arrow McLaren | Honda | 1:19.268 | 1.553 |
| 19 | 17 | S. Saavedra | KV Racing | Chevrolet | 1:19.356 | 1.641 |
| 20 | 20 | M. Conway | Ed Carpenter Racing | Chevrolet | 1:19.363 | 1.648 |
| 21 | 98 | J. Hawksworth | Bryan Herta Autosport | Honda | 1:19.709 | 1.994 |
| 22 | 18 | C. Huertas | Dale Coyne Racing | Honda | 1:19.973 | 2.258 |
| Pos. = Position, Rnd. = Runden | ||||||
Sonoma
1. Freies Training
