| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Chassis | Engine | Tire | Owner | Qualifying Time | Laps | X Led | Laps Led | Status | Points |
| 1999 | 2 | 43 | 29 | GT | 10 | 39 | Toad Hall Motor Racing | Porsche 911 Carrera RSR | Porsche 3.8L Flat-6 | | Broadfoot | | 99 | 0 | 0 | running | 10 |
| 1999 | 6 | 40 | 19 | GT | 4 | 10 | Yokohama/Flextronics/Level One | BMW M3 | BMW 3.2L I6 | Yokohama | PTG | | 339 | 0 | 0 | running | 17 |
| 2000 | 9 | 28 | 18 | GT | 4 | 80 | G&W Motorsports | Porsche 911 GT3-R | Porsche 3.6L Flat-6 | Dunlop | G and W | | 331 | 0 | 0 | running | 22 |
| 2003 | 9 | 28 | 18 | GT | 7 | 63 | ACEMCO Automotive | Ferrari 360 Modena GTC | Ferrari 3.6L V8 | Yokohama | ACEMCO | 1:35.656 | 350 | 0 | 0 | running | 4 |
| 2004 | 8 | 22 | 11 | GT | 4 | 35 | Risi Competizione | Ferrari 360 Modena GTC | Ferrari 3.6L V8 | Pirelli | Risi | 1:23.908 | 355 | 0 | 0 | running | 16 |
| 2005 | 9 | 25 | 13 | GT2 | 3 | 45 | eSilicon/ShoreTel | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | Michelin | Flying Lizard | 1:22.829 | 356 | 0 | 0 | running | 19 |
| 2006 | 9 | 23 | 20 | GT2 | 7 | 44 | PortalPlayer/iPass/ShoreTel | Porsche 911 GT3-RSR | Porsche 3.6L Flat-6 | Michelin | Flying Lizard | 1:23.294 | 343 | 0 | 0 | running | 10 |
| 2007 | 11 | 23 | 16 | GT2 | 5 | 44 | ShoreTel/eSilicon | Porsche 997 GT3-RSR | Porsche 3.8L Flat-6 | Michelin | Flying Lizard | 1:22.914 | 341 | 0 | 0 | running | 14 |
| 2008 | 10 | 35 | 19 | GT2 | 6 | 44 | ShoreTel/eSilicon | Porsche 997 GT3-RSR | Porsche 4.0L Flat-6 | Michelin | Flying Lizard | 1:23.589 | 339 | 0 | 0 | running | 16 |
| 2009 | 9 | 25 | 15 | GT2 | 7 | 44 | ShoreTel/eSilicon/RedlineCoffee.com | Porsche 997 GT3-RSR | Porsche 4.0L Flat-6 | Michelin | Flying Lizard | 1:25.601 | 162 | 0 | 0 | running | 14 |
| 2010 | 9 | 30 | 20 | GT2 | 9 | 44 | ShoreTel/Openwave/eSilicon | Porsche 997 GT3-RSR | Porsche 4.0L Flat-6 | Michelin | Flying Lizard | 1:24.887 | 348 | 0 | 0 | running | 12 |
| 2011 | 9 | 38 | 19 | GT | 8 | 044 | Openwave/eSilicon | Porsche 997 GT3-RSR | Porsche 4.0L Flat-6 | Michelin | Flying Lizard | 1:21.090 | 361 | 0 | 0 | running | 16 |
| 2013 | 10 | 31 | 30 | GTC | 8 | 10 | dempseychallenge.org | Porsche 997 GT3 Cup | Porsche 4.0L Flat-6 | Yokohama | Dempsey | 1:25.368 | 277 | 0 | 0 | not running | 10 |
