IndyCar 2017 Sonoma
| # | Piloto | Equipe | Carro | Motor | Pneus | |
|---|---|---|---|---|---|---|
| 1 |  Simon Pagenaud | Team Penske | Dallara DW12 | Chevrolet | Firestone | |
| 2 | Josef Newgarden | Team Penske | Dallara DW12 | Chevrolet | Firestone | |
| 3 |  Helio Castroneves | Team Penske | Dallara DW12 | Chevrolet | Firestone | |
| 4 | Conor Daly | A.J. Foyt Enterprises | Dallara DW12 | Chevrolet | Firestone | |
| 5 |  James Hinchcliffe | Schmidt Peterson Motorsports | Dallara DW12 | Honda | Firestone | |
| 7 |  Jack Harvey | Schmidt Peterson Motorsports | Dallara DW12 | Honda | Firestone | |
| 8 | Max Chilton | Chip Ganassi Racing | Dallara DW12 | Honda | Firestone | |
| 9 |  Scott Dixon | Chip Ganassi Racing | Dallara DW12 | Honda | Firestone | |
| 10 | Tony Kanaan | Chip Ganassi Racing | Dallara DW12 | Honda | Firestone | |
| 12 |  Will Power | Team Penske | Dallara DW12 | Chevrolet | Firestone | |
| 13 | Zachary Claman DeMelo | Rahal Letterman Lanigan Racing | Dallara DW12 | Honda | Firestone | |
| 14 |  Carlos Munoz | A.J. Foyt Enterprises | Dallara DW12 | Chevrolet | Firestone | |
| 15 | Graham Rahal | Rahal Letterman Lanigan Racing | Dallara DW12 | Honda | Firestone | |
| 18 | Sébastien Bourdais | Dale Coyne Racing | Dallara DW12 | Honda | Firestone | |
| 19 |  Ed Jones | Dale Coyne Racing | Dallara DW12 | Honda | Firestone | |
| 20 | Spencer Pigot | Ed Carpenter Racing | Dallara DW12 | Chevrolet | Firestone | |
| 21 | J.R. Hildebrand | Ed Carpenter Racing | Dallara DW12 | Chevrolet | Firestone | |
| 26 |  Takuma Sato | Andretti Autosport | Dallara DW12 | Honda | Firestone | |
| 27 | Marco Andretti | Andretti Autosport | Dallara DW12 | Honda | Firestone | |
| 28 | Ryan Hunter-Reay | Andretti Autosport | Dallara DW12 | Honda | Firestone | |
| 83 | Charlie Kimball | Chip Ganassi Racing | Dallara DW12 | Honda | Firestone | |
| 98 | Alexander Rossi | Andretti Autosport | Dallara DW12 | Honda | Firestone |