Sonoma - 2. fri træning
Helio Castroneves fra Team Penske fik klemt sig ind i mellem de to Chip Ganassi Racing kørere Scott Dixon og Dario Franchitti i kampen om de tre top placeringer da IndyCar Series deltagerne var ude i deres anden fri træning i Sonoma på Infineon (Sears Point) banen i Californien.
På 4. pladsen kom Alex Tagliani fra klassesponsor teamet FAZZT Race Team, og lige bag ham mesterskabs førende Will Power fra Team Penske.

Tiderne fra 2. fri træning:

Pl.	#	Kører	Team	Tid	Diff.	Mph.
1	9	Scott Dixon	Chip Ganassi Racing	1:17,4312		107,073
2	3	Helio Castroneves	Team Penske	1:17,7310	0,2998	106,660
3	10	Dario Franchitti	Chip Ganassi Racing	1:17,7705	0,3393	106,606
4	77	Alex Tagliani	FAZZT Race Team	1:17,7788	0,3476	106,595
5	12	Will Power	Team Penske	1:17,7958	0,3646	106,571
6	6	Ryan Briscoe	Team Penske	1:17,8713	0,4401	106,468
7	37	Ryan Hunter-Reay	Andretti Autosport	1:17,9535	0,5223	106,356
8	22	Justin Wilson	Dreyer & Reinbold Racing	1:18,0535	0,6223	106,219
9	02	Graham Rahal	Newman/Haas Racing	1:18,0652	0,6340	106,204
10	24	J.R. Hildebrand*	Dreyer & Reinbold Racing	1:18,0937	0,6625	106,165
11	06	Hideki Mutoh	Newman/Haas Racing	1:18,1533	0,7221	106,084
12	4	Dan Wheldon	Panther Racing	1:18,3164	0,8852	105,863
13	8	E.J. Viso	KV Racing Technology	1:18,3254	0,8942	105,851
14	26	Marco Andretti	Andretti Autosport	1:18,3382	0,9070	105,833
15	2	Raphael Matos	de Ferran Luczo Dragon	1:18,4089	0,9777	105,738
16	11	Tony Kanaan	Andretti Autosport	1:18,4201	0,9889	105,723
17	34	Bertrand Baguette*	Conquest Racing	1:18,5335	1,1023	105,570
18	32	Mario Moraes	KV Racing Technology	1:18,6155	1,1843	105,460
19	5	Takuma Sato*	KV Racing Technology	1:18,6340	1,2028	105,435
20	19	Alex Lloyd*	Dale Coyne Racing	1:18,7027	1,2715	105,343
21	14	Vitor Meira	A.J. Foyt Enterprises	1:18,7558	1,3246	105,272
22	78	Simona De Silvestro*	HVM	1:18,9265	1,4953	105,045
23	7	Danica Patrick	Andretti Autosport	1:19,0820	1,6508	104,838
24	36	Francesco Dracone*	Conquest Racing	1:21,4849	4,0537	101,746
25	18	Milka Duno	Dale Coyne Racing	1:21,8460	4,4148	101,298

Hr. Nielsen