| Pilotos | ||||
| Nombre | Nº | Equipo | ||
| Helio Castroneves | 06 | |||
| JR Hildebrand | 1 | Team Penske | ||
| Alex Palou | 10 | Target Chip Ganassi Racing | ||
| Charlie Kimball | 11 | |||
| Will Power | 12 | Team Penske | ||
| Sebastien Bourdais | 14 | A.J. Foyt Enterprises | ||
| Graham Rahal | 15 | Rahal Letterman Lanigan Racing | ||
| Simona De Silvestro | 16 | |||
| Ed Jones | 18 | Dale Coyne Racing | ||
| Josef Newgarden | 2 | Team Penske | ||
| Ed Carpenter | 20 | Ed Carpenter Racing | ||
| Conor Daly | 20 | Ed Carpenter Racing | ||
| Oliver Askew | 45 | Rahal Letterman Lanigan Racing | ||
| Rinus VeeKay | 21 | Ed Carpenter Racing | ||
| Simon Pagenaud | 22 | Team Penske | ||
| Sage Karam | 24 | Dreyer & Reinbold Racing | ||
| Stefan Wilson | 25 | |||
| Colton Herta | 26 | Andretti Autosport | ||
| Alexander Rossi | 27 | Andretti Autosport | ||
| Ryan Hunter-Reay | 28 | Andretti Autosport | ||
| James Hinchcliffe | 29 | |||
| Scott McLaughlin | 3 | Team Penske | ||
| Takuma Sato | 30 | |||
| Dalton Kellett | 4 | A.J. Foyt Enterprises | ||
| Santino Ferrucci | 45 | Rahal Letterman Lanigan Racing | ||
| Christian Lundgaard | 45 | Rahal Letterman Lanigan Racing | ||
| Tony Kanaan | 48 | Target Chip Ganassi Racing | ||
| Jimmie Johnson | 48 | Target Chip Ganassi Racing | ||
| Pato O'Ward | 5 | McLaren | ||
| Romain Grosjean | 51 | Dale Coyne Racing | ||
| Pietro Fittipaldi | 51 | Dale Coyne Racing | ||
| Cody Ware | 52 | Dale Coyne Racing | ||
| Ryan Norman | 52 | Dale Coyne Racing | ||
| Max Chilton | 59 | |||
| Jack Harvey | 60 | |||
| Kevin Magnussen | 7 | McLaren | ||
| Felix Rosenqvist | 7 | McLaren | ||
| RC Enerson | 75 | |||
| Marcus Ericsson | 8 | Chip Ganassi Racing | ||
| Juan Pablo Montoya | 86 | |||
| Scott Dixon | 9 | Chip Ganassi Racing | ||
| Marco Andretti | 98 | Andretti Autosport | ||