2004 Portland Grand Prix
The 2004 Portland Grand Prix was the fifth race for the 2004 American Le Mans Series season held at Portland International Raceway. It took place on July 25, 2004.
Official results
Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified.| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
| Pos | Class | No | Team | Drivers | Engine | Tyre | Laps |
| 1 | LMP1 | 38 |  Statistics
|