Infineon Raceway
2.3 Mile Road Course, Remeasured to 2.303
Miles in 2008 (2005-10)
2.31 Mile Road Course (2014)
Sonoma, California
IRL sanctioned 2005-10
INDYCAR sanctioned 2014
| Race # | Date | Race | Miles | Winner |
| 1 | 8/28/2005 | Sonoma 100 | 69 | Marco Andretti |
| 2 | 8/26/2006 | Carneros 100 | 69 | Wade Cunningham |
| 3 | 8/27/2006 | Valley of the Moon 100 | 69 | Alex Lloyd |
| 4 | 8/25/2007 | Carneros 100 | 69 | Alex Lloyd |
| 5 | 8/26/2007 | Valley of the Moon 100 | 69 | Richard Antinucci |
| 6 | 8/23/2008 | Carneros 100 | 69.09 | Franck Perera |
| 7 | 8/24/2008 | Valley of the Moon 100 | 69.09 | Pablo Donoso |
| 8 | 8/23/2009 | Carneros 100 | 92.12 | J. R. Hildebrand |
| 9 | 8/22/2010 | Carneros 100 | 92.12 | J. K. Vernay |
| 10 | 8/23/2014 | Sears Point Race 1 | 57.75 | Jack Harvey |
| 11 | 8/24/2014 | Sears Point Race 2 | 87.78 | Jack Harvey |