ISM/Phoenix IndyCar full entry list
Here is a full entry list for the 2018 Desert Diamond West Valley Casino Phoenix Grand Prix at ISM Raceway.
| Rank | Driver | Car, Team, Engine |
| 1 | Josef Newgarden | #1, Team Penske, Chevrolet |
| 2 | Matheus Leist | #4, A.J. Foyt Enterprises, Chevrolet |
| 3 | James Hinchcliffe | #5, Schmidt Peterson Motorsports, Honda |
| 4 | Robert Wickens | #6, Schmidt Peterson Motorsports, Honda |
| 5 | Scott Dixon | #9, Chip Ganassi Racing, Honda |
| 6 | Ed Jones | #10, Chip Ganassi Racing, Honda |
| 7 | Will Power | #12, Team Penske, Chevrolet |
| 8 | Tony Kanaan | #14, A.J. Foyt Enterprises, Chevrolet |
| 9 | Graham Rahal | #15, Rahal Letterman Lanigan Racing, Honda |
| 10 | Sebastien Bourdais | #18, Dale Coyne Racing, Honda |
| 11 | Pietro Fittipaldi | #19, Dale Coyne Racing, Honda |
| 12 | Ed Carpenter | #20, Ed Carpenter Racing, Chevrolet |
| 13 | Spencer Pigot | #21, Ed Carpenter Racing, Chevrolet |
| 14 | Simon Pagenaud | #22, Team Penske, Chevrolet |
| 15 | Charlie Kimball | #23, Carlin Motorsport, Chevrolet |
| 16 | Zach Veach | #26, Andretti Autosport, Honda |
| 17 | Alexander Rossi | #27, Andretti Autosport, Honda |
| 18 | Ryan Hunter-Reay | #28, Andretti Autosport, Honda |
| 19 | Takuma Sato | #30, Rahal Letterman Lanigan Racing, Honda |
| 20 | Kyle Kaiser | #32, Juncos Racing, Chevrolet |
| 21 | Max Chilton | #59, Carlin Motorsport, Chevrolet |
| 22 | Gabby Chaves | #88, Harding Racing, Chevrolet |
| 23 | Marco Andretti | #98, Andretti Herta Autosport, Honda |