Portland Grand Prix
The Portland Grand Prix was a sports car race held at the Portland International Raceway in Portland, Oregon from 1978 until 2006. It began as a round of the IMSA GT Championship, and became an American Le Mans Series race in 1999.
| Venue | Portland International Raceway |
|---|---|
| First race | 1978 |
| Last race | 2006 |
| Previous names | Rose City Grand Prix |
| Most wins (driver) | Al Holbert (3) |
| Most wins (team) | Holbert Racing (4) |
| Most wins (manufacturer) | Porsche (8) |
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