Estos son los pilotos que estarán presentes este fin de semana en el Infineon Raceway de Sonoma, en California. Este fin de semana veremos la vuelta del italiano Giorgio Pantano (Dreyer & Reinbold Racing) y de Martin Plowman (AFS/Sam Schmidt Motorsport). El chino Ho-Pin Tung (Dragon Racing) correrá su primera carrera en la categoría.
Nº – Piloto – Equipo
2 – Oriol Servia – Newman/Haas Racing
3 – Helio Castroneves – Team Penske
4 – J. R. Hildebrand (R) – Panther Racing
5 – Takuma Sato – KV Racing Technology
6 – Ryan Briscoe – Team Penske
7 – Danica Patrick – Andretti Autoport
9 – Scott Dixon – Target Chip Ganassi Racing
10 – Dario Franchitti – Target Chip Ganassi Racing
12 – Will Power – Team Penske
14 – Vitor Meira – A. J. Foyt Enterprises
17 – Martin Plowman (R) – AFS/Sam Schmidt Motorsport
18 – Jake James (R) – Dale Coyne Racing
19 – Sébastien Bourdais – Dale Coyne Racing
22 – Giorgio Pantano (R) – Dreyer & Reinbold Racing
24 – Bia Figueiredo – Dreyer & Reinbold Racing
26 – Marco Andretti – Andretti Autosport
27 – Mike Conway – Andretti Autosport
28 – Ryan Hunter-Reay – Andretti Autosport
34 – Sebastián Saavedra (R) – Conquest Racing
38 – Graham Rahal – Chip Ganassi Racing
59 – Ernesto Viso – KV Racing Technology
67 – Ed Carpenter – Sarah Fisher Racing
77 – Alex Tragliani – Sam Schmidt Motorsport
78 – Simona De Silvestro – HVM Racing
82 – Tony Kanaan – KV Racing Technology
83 – Charlie Kimball (R) – Chip Ganassi Racing
88 – Ho-Pin Tung (R) – Dragon Racing
06 – James Hinchcliffe (R) – Newman/Haas Racing
(R): Debutante