| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Engine | Owner | Qualifying Time | Laps | X Led | Laps Led | Points |
| 2000 | 1 | 50 | 62 | GTU | 30 | 75 | Texaco/Michelin/Where Money Is | Porsche GT3R | Champion | 1:56.189 | 225 | 0 | 0 | 11 |
| 2001 | 1 | 27 | 78 | GTS | 14 | 76 | Gunnar Racing | Porsche GT1 | Gunnar | 1:50.001 | 37 | 0 | 0 | 17 |
| 2001 | 13 | 41 | 24 | GTS | 3 | 76 | Gunnar Racing | Porsche GT3RS | Gunnar | | 79 | 0 | 0 | 30 |
| 2002 | 1 | 30 | 17 | GTS | 3 | 31 | SWR/Hella/BASF/H&R/Lista/ELF/Bosch/Deutsche Bank | Saleen S7R | Konrad | 1:54.713 | 634 | 0 | 0 | 30 |
| 2003 | 1 | 28 | 43 | GTS | 13 | 6 | T-Bird Swap Shop/Keewaydin Group/Nextel | Gunnar Porsche GT1 | Gunnar | 1:57.591 | 9 | 0 | 0 | 18 |
| 2003 | 12 | 32 | 19 | GTS | 5 | 6 | Autosports Marketing Associates | Porsche Gunnar GT1 | Gunnar | no time | 67 | 0 | 0 | 26 |
| 2004 | 1 | 14 | 48 | DP | 15 | 45 | Disney presents a Pixar film Cars | Porsche Fabcar | Gunnar | 1:50.419 | 185 | 0 | 0 | 16 |
| 2007 | 1 | 40 | 38 | GT | 19 | 87 | RECARO | Porsche GT3 Cup | Farnbacher Loles | 1:52.800 | 545 | 0 | 0 | 12 |
| 2008 | 1 | 34 | 19 | GT | 9 | 57 | Stevenson Automotive/BryanMark Financial | Pontiac GXP.R | Stevenson | 1:51.717 | 644 | 0 | 0 | 22 |
