The 2004 California 100 was Round 11 of the 2004 Menards IRL Infiniti Pro Series. The event was held at Auto Club Speedway in Fontana, California, United States on 2 October 2004. James Chesson was the race winner.
California 100 Race Result
| Pos. | No. | Driver | Chassis | Engine | Tire | Laps | Laps Led | Status | Started | Points |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 67 | James Chesson | Dallara | Infiniti | Firestone | 50 | 2 | Running | 9 | 50 |
| 2 | 76 | P.J. Chesson | Dallara | Infiniti | Firestone | 50 | 0 | Running | 7 | 40 |
| 3 | 2 | Phil Giebler | Dallara | Infiniti | Firestone | 50 | 0 | Running | 8 | 35 |
| 4 | 33 | Leonardo Maia | Dallara | Infiniti | Firestone | 50 | 0 | Running | 6 | 32 |
| 5 | 10 | Rolando Quintanilla | Dallara | Infiniti | Firestone | 50 | 0 | Running | 14 | 30 |
| 6 | 6 | Jon Herb | Dallara | Infiniti | Firestone | 50 | 0 | Running | 13 | 28 |
| 7 | 64 | PJ Abbott | Dallara | Infiniti | Firestone | 50 | 0 | Running | 15 | 26 |
| 8 | 27 | Gary Peterson | Dallara | Infiniti | Firestone | 50 | 0 | Running | 10 | 24 |
| DNF | 11 | Thiago Medeiros | Dallara | Infiniti | Firestone | 49 | 24 | Accident | 1 | 24 |
| DNF | 24 | Jeff Simmons | Dallara | Infiniti | Firestone | 49 | 0 | Accident | 5 | 20 |
| DNF | 3 | Marty Roth | Dallara | Infiniti | Firestone | 37 | 0 | Accident | 11 | 19 |
| DNF | 91 | Paul Dana | Dallara | Infiniti | Firestone | 36 | 0 | Accident | 3 | 18 |
| DNF | 5 | Racer Kashima | Dallara | Infiniti | Firestone | 30 | 0 | Accident | 4 | 17 |
| DNF | 25 | Arie Luyendyk Jr. | Dallara | Infiniti | Firestone | 27 | 24 | Cut Tire | 2 | 16 |
| DNS | 21 | Taylor Fletcher | Dallara | Infiniti | Firestone | 0 | 0 | DNS | 12 | 15 |