| Pos. | Nr. | Fahrer | Team | Motor | Zeit | auf F. |
|---|---|---|---|---|---|---|
| 1 | 3 | H. Castroneves | Team Penske | Chevrolet | 1:18.658 | |
| 2 | 8 | R. Briscoe | Chip Ganassi Racing | Chevrolet | 1:18.692 | 0.034 |
| 3 | 28 | R. Hunter-Reay | Andretti Global | Honda | 1:18.798 | 0.140 |
| Anzeige | ||||||
| 4 | 9 | S. Dixon | Chip Ganassi Racing | Chevrolet | 1:19.030 | 0.372 |
| 5 | 12 | W. Power | Team Penske | Chevrolet | 1:19.037 | 0.379 |
| 6 | 11 | S. Bourdais | KV Racing | Chevrolet | 1:19.111 | 0.453 |
| 7 | 67 | J. Newgarden | Sarah Fisher Hartman Racing | Honda | 1:19.157 | 0.499 |
| 8 | 2 | J. Montoya | Team Penske | Chevrolet | 1:19.205 | 0.547 |
| 9 | 10 | T. Kanaan | Chip Ganassi Racing | Chevrolet | 1:19.231 | 0.573 |
| 10 | 25 | M. Andretti | Andretti Global | Honda | 1:19.262 | 0.604 |
| 11 | 34 | C. Munoz | Andretti Global | Honda | 1:19.401 | 0.743 |
| 12 | 83 | C. Kimball | Chip Ganassi Racing | Chevrolet | 1:19.425 | 0.767 |
| 13 | 77 | S. Pagenaud | Arrow McLaren | Honda | 1:19.442 | 0.784 |
| 14 | 19 | J. Wilson | Dale Coyne Racing | Honda | 1:19.449 | 0.791 |
| 15 | 14 | T. Sato | A.J. Foyt Enterprises | Honda | 1:19.513 | 0.855 |
| 16 | 15 | G. Rahal | Rahal Letterman Lanigan Racing | Honda | 1:19.619 | 0.961 |
| 17 | 20 | M. Conway | Ed Carpenter Racing | Chevrolet | 1:19.646 | 0.988 |
| 18 | 17 | S. Saavedra | KV Racing | Chevrolet | 1:19.690 | 1.032 |
| 19 | 27 | J. Hinchcliffe | Andretti Global | Honda | 1:19.783 | 1.125 |
| 20 | 7 | M. Aljoschin | Arrow McLaren | Honda | 1:19.813 | 1.155 |
| 21 | 18 | C. Huertas | Dale Coyne Racing | Honda | 1:19.840 | 1.182 |
| 22 | 98 | J. Hawksworth | Bryan Herta Autosport | Honda | 1:19.991 | 1.333 |
| Pos. = Position, Rnd. = Runden | ||||||
Sonoma
2. Freies Training
