The 2001 Grand Prix of Portland was the sixth round of the 2001 American Le Mans Series season. It took place at Portland International Raceway, Oregon, on August 5, 2001.
Class winners in bold.
| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
|---|---|---|---|---|---|---|---|
| Engine | |||||||
| 1 | LMP900 | 50 |  Panoz Motor Sports | Jan Magnussen David Brabham | Panoz LMP-1 Roadster-S | 131 | |
| Élan 6L8 6.0L V8 | |||||||
| 2 | LMP900 | 2 |  Audi Sport North America | Frank Biela Emanuele Pirro | Audi R8 | 131 | |
| Audi 3.6L Turbo V8 | |||||||
| 3 | LMP900 | 38 | Champion Racing |  Andy Wallace Johnny Herbert | Audi R8 | 131 | |
| Audi 3.6L Turbo V8 | |||||||
| 4 | LMP900 | 51 | Panoz Motor Sports | Klaus Graf Franck Lagorce | Panoz LMP-1 Roadster-S | 131 | |
| Élan 6L8 6.0L V8 | |||||||
| 5 | LMP900 | 1 | Audi Sport North America | Rinaldo Capello Tom Kristensen | Audi R8 | 127 | |
| Audi 3.6L Turbo V8 | |||||||
| 6 | LMP675 | 57 | Dick Barbour Racing | Milka Duno Didier de Radigues John Graham | Reynard 01Q | 123 | |
| Judd GV675 3.4L V8 | |||||||
| 7 | GTS | 3 | Corvette Racing | Ron Fellows Johnny O'Connell | Chevrolet Corvette C5-R | 122 | |
| Chevrolet 7.0L V8 | |||||||
| 8 | GT | 6 | Prototype Technology Group | Boris Said Hans-Joachim Stuck | BMW M3 GTR | 121 | |
| BMW 4.0L V8 | |||||||
| 9 | GT | 23 | Alex Job Racing | Lucas Luhr Sascha Maassen | Porsche 911 GT3-RS | 120 | |
| Porsche 3.6L Flat-6 | |||||||
| 10 | GT | 42 | BMW Motorsport Schnitzer Motorsport | Jörg Müller JJ Lehto | BMW M3 GTR | 120 | |
| BMW 4.0L V8 | |||||||
| 11 | GT | 43 | BMW Motorsport Schnitzer Motorsport | Dirk Müller Fredrik Ekblom | BMW M3 GTR | 120 | |
| BMW 4.0L V8 | |||||||
| 12 | LMP675 | 11 | Roock-KnightHawk Racing | Steven Knight Mel Hawkins | Lola B2K/40 | 120 | |
| Nissan (AER) VQL 3.4L V6 | |||||||
| 13 | GT | 22 | Alex Job Racing | Randy Pobst Christian Menzel | Porsche 911 GT3-RS | 118 | |
| Porsche 3.6L Flat-6 | |||||||
| 14 | GT | 30 | Petersen Motorsports | Johnny Mowlem Timo Bernhard | Porsche 911 GT3-R | 118 | |
| Porsche 3.6L Flat-6 | |||||||
| 15 | GTS | 45 | American Viperacing | Shane Lewis Jeff Altenburg | Dodge Viper GTS-R | 118 | |
| Dodge 8.0L V10 | |||||||
| 16 | GT | 69 | Kyser Racing | Kye Wankum Joe Foster | Porsche 911 GT3-R | 106 | |
| Porsche 3.6L Flat-6 | |||||||
| 17 DNF | GT | 10 | Prototype Technology Group | Bill Auberlen Niclas Jönsson | BMW M3 GTR | 102 | |
| BMW 4.0L V8 | |||||||
| 18 DNF | GTS | 26 | Konrad Team Saleen | Terry Borcheller Franz Konrad | Saleen S7-R | 85 | |
| Ford 7.0L V8 | |||||||
| 19 DNF | GTS | 44 | American Viperacing | Tom Weickardt Kevin Allen | Dodge Viper GTS-R | 78 | |
| Dodge 8.0L V10 | |||||||
| 20 DNF | GT | 15 | Dick Barbour Racing | Mark Neuhaus Randy Wars | Porsche 911 GT3-R | 13 | |
| Porsche 3.6L Flat-6 | |||||||
| DSQ† | GTS | 4 | Corvette Racing | Andy Pilgrim Kelly Collins | Chevrolet Corvette C5-R | 122 | |
| Chevrolet 7.0L V8 |
† - #4 Corvette Racing was disqualified for failing post-race technical inspection. The car was below the legal weight limit.