Olivier Beretta American Le Mans Series results at Portland
| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Chassis | Engine | Tire | Owner | Qualifying Time | Laps | X Led | Laps Led | Status | Points |
| 1999 | 5 | 23 | 13 | GTS | 1 | 91 | Dodge/Mobil | Dodge Viper GTS-R | Dodge 8.0L V10 | Michelin | Oreca | | 126 | 0 | 0 | running | 25 |
| 2000 | 8 | 12 | 10 | GTS | 1 | 91 | Dodge/Mobil 1/Michelin | Dodge Viper GTS-R | Dodge 8.0L V10 | Michelin | Oreca | | 123 | 0 | 0 | running | 25 |
| 2004 | 5 | 5 | 4 | GTS | 2 | 4 | Compuware | Chevrolet Corvette C5-R | Chevrolet 7.0L V8 | Michelin | Corvette | 1:09.981 | 133 | 0 | 0 | running | 16 |
| 2005 | 6 | 8 | 5 | GT1 | 1 | 4 | Compuware | Chevrolet Corvette C6.R | Chevrolet 7.0L V8 | Michelin | Corvette | 1:08.193 | 131 | 0 | 0 | running | 20 |
| 2006 | 6 | 10 | 7 | GT1 | 1 | 4 | Compuware | Chevrolet Corvette C6.R | Chevrolet 7.0L V8 | Michelin | Corvette | 1:09.399 | 133 | 0 | 0 | running | 20 |
