| |
| Auto Sports IRL (Indy Racing League) Sonoma | 
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| |
| Year | 
| 
| 
|
| 2008 | |||
| 2007 | Scott Dixon (nzl) | Helio Castroneves (bra) | Dario Franchitti (gbr) |
| [Dallara-Honda] | [Dallara-Honda] | [Dallara-Honda] | |
| 2006 | Marco Andretti (usa) | Dario Franchitti (gbr) | Vitor Meira (bra) |
| [Dallara-Honda] | [Dallara-Honda] | [Dallara-Honda] | |
| 2005 | Tony Kanaan (bra) | Buddy Rice (usa) | Alex Barron (usa) |
| [Dallara-Honda] | [Panoz-Honda] | [Dallara-Toyota] |
|
Note: venue: 2005-: Infineon Raceway, Sonoma, CA (usa) |
