| 2 |
 Josef Newgarden |
22 Dec 1990 |
Team Penske |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 3 |
 Helio Castroneves |
10 May 1971 |
Team Penske |
Dallara DW12 (IR18) - Chevrolet |
FI | 2 |  |
| 12 |
 Will Power |
1 Mar 1979 |
Team Penske |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 22 |
 Simon Pagenaud |
18 May 1984 |
Team Penske |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 4 |
Matheus Leist |
8 Sep 1997 |
A.J. Foyt Enterprises |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 14 |
Tony Kanaan |
31 Dec 1974 |
A.J. Foyt Enterprises |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 5 |
 James Hinchcliffe |
5 Dec 1986 |
Schmidt Peterson Motorsports |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 7 |
 Marcus Ericsson |
2 Sep 1990 |
Schmidt Peterson Motorsports |
Dallara DW12 (IR18) - Honda |
FI | 16 |  |
| 7 |
Conor Daly |
17 Dec 1991 |
Schmidt Peterson Motorsports |
Dallara DW12 (IR18) - Honda |
FI | 1 |  |
| 77 |
 Oriol Servia |
13 Jul 1974 |
Schmidt Peterson Motorsports |
Dallara DW12 (IR18) - Honda |
FI | 1 |  |
| 9 |
 Scott Dixon |
22 Jul 1980 |
Chip Ganassi Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 10 |
Felix Rosenqvist |
7 Nov 1991 |
Chip Ganassi Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 15 |
Graham Rahal |
4 Jan 1989 |
Rahal Letterman Lanigan Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 30 |
 Takuma Sato |
20 Jan 1977 |
Rahal Letterman Lanigan Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 42 |
 Jordan King |
26 Feb 1994 |
Rahal Letterman Lanigan Racing |
Dallara DW12 (IR18) - Honda |
FI | 1 |  |
| 18 |
Sebastien Bourdais |
28 Feb 1979 |
Dale Coyne Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 19 |
Santino Ferrucci |
31 May 1998 |
Dale Coyne Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 33 |
James Davison |
28 Aug 1986 |
Dale Coyne Racing |
Dallara DW12 (IR18) - Honda |
FI | 1 |  |
| 20 |
Ed Carpenter |
3 Mar 1981 |
Ed Carpenter Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 5 |  |
| 20/63 |
 Edward Jones |
12 Feb 1995 |
Ed Carpenter Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 13 |  |
| 21 |
Spencer Pigot |
29 Sep 1993 |
Ed Carpenter Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 17 |  |
| 23 |
Charlie Kimball |
20 Feb 1985 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 7 |  |
| 31 |
 Patricio O'Ward |
6 May 1999 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 7 |  |
| 31 |
Sage Karam |
3 May 1995 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 2 |  |
| 31 |
RC Enerson |
6 Mar 1997 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 1 |  |
| 59 |
Max Chilton |
21 Apr 1991 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 12 |  |
| 59 |
Conor Daly |
17 Dec 1991 |
Carlin Motorsport |
Dallara DW12 (IR18) - Chevrolet |
FI | 4 |  |
| 24 |
Sage Karam |
3 May 1995 |
Dreyer & Reinbold Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 1 |  |
| 48 |
J.R. Hildebrand |
3 Jan 1988 |
Dreyer & Reinbold Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 1 |  |
| 25 |
Conor Daly |
17 Dec 1991 |
Andretti Autosport |
Dallara DW12 (IR18) - Honda |
FI | 2 |  |
| 26 |
Zach Veach |
9 Dec 1994 |
Andretti Autosport |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 27 |
Alexander Rossi |
25 Sep 1991 |
Andretti Autosport |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 28 |
Ryan Hunter-Reay |
17 Dec 1980 |
Andretti Autosport |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 32 |
Kyle Kaiser |
5 Mar 1996 |
Juncos Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 2 |  |
| 39 |
Pippa Mann |
11 Aug 1984 |
Clauson-Marshall Racing |
Dallara DW12 (IR18) - Chevrolet |
FI | 1 |  |
| 60 |
Jack Harvey |
15 Apr 1993 |
Meyer Shank Racing |
Dallara DW12 (IR18) - Honda |
FI | 10 |  |
| 66 |
Fernando Alonso |
29 Jul 1981 |
McLaren |
Dallara DW12 (IR18) - Chevrolet |
FI | 0 |  |
| 81 |
Benjamin Hanley |
22 Jan 1985 |
DragonSpeed |
Dallara DW12 (IR18) - Chevrolet |
FI | 3 |  |
| 88 |
Colton Herta |
30 Mar 2000 |
Harding Steinbrenner Racing |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
| 98 |
Marco Andretti |
13 Mar 1987 |
Andretti Herta Autosport |
Dallara DW12 (IR18) - Honda |
FI | 17 |  |
