| Pilotos | ||||
| Nombre | Nº | Equipo | ||
| Simon Pagenaud | 1 | Team Penske | ||
| Tony Kanaan | 10 | Chip Ganassi Racing | ||
| Spencer Pigot | 20 | Ed Carpenter Racing | ||
| Will Power | 12 | Team Penske | ||
| Carlos Munoz | 14 | A.J. Foyt Enterprises | ||
| Graham Rahal | 15 | Rahal Letterman Lanigan Racing | ||
| Oriol Servia | 16 | |||
| Sebastian Saavedra | 7 | Schmidt Peterson Motorsports | ||
| Sebastien Bourdais | 18 | Dale Coyne Racing | ||
| Esteban Gutierrez | 18 | Dale Coyne Racing | ||
| Tristan Vautier | 18 | Dale Coyne Racing | ||
| James Davison | 18 | Dale Coyne Racing | ||
| Ed Jones | 19 | Dale Coyne Racing | ||
| Josef Newgarden | 2 | Team Penske | ||
| Ed Carpenter | 20 | Ed Carpenter Racing | ||
| JR Hildebrand | 21 | Ed Carpenter Racing | ||
| Zach Veach | 40 | |||
| Juan Pablo Montoya | 22 | Team Penske | ||
| Sage Karam | 24 | Dreyer & Reinbold Racing | ||
| Takuma Sato | 26 | Andretti Autosport | ||
| Marco Andretti | 27 | Andretti Autosport | ||
| Ryan Hunter-Reay | 28 | Andretti Autosport | ||
| Fernando Alonso | 29 | |||
| Helio Castroneves | 3 | Team Penske | ||
| Conor Daly | 4 | A.J. Foyt Enterprises | ||
| Buddy Lazier | 44 | |||
| James Hinchcliffe | 5 | Schmidt Peterson Motorsports | ||
| Jack Harvey | 7 | Schmidt Peterson Motorsports | ||
| Pippa Mann | 63 | |||
| Mikhail Aleshin | 7 | Schmidt Peterson Motorsports | ||
| Jay Howard | 77 | |||
| Max Chilton | 8 | Chip Ganassi Racing | ||
| Charlie Kimball | 83 | Chip Ganassi Racing | ||
| Gabby Chaves | 88 | Dale Coyne Racing | ||
| Scott Dixon | 9 | Chip Ganassi Racing | ||
| Alexander Rossi | 98 | Andretti Autosport | ||