| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Chassis | Engine | Tire | Owner | Qualifying Time | Laps | X Led | Laps Led | Status | Points |
| 1999 | 6 | 38 | 23 | GTS | 6 | 83 | Men's Fitness/Ross Racing | Porsche 911 GT2 | Porsche 3.6L Turbo Flat-6 | | Chiefie | | 319 | 0 | 0 | running | 14 |
| 2000 | 9 | 32 | 27 | GT | 11 | 69 | Deuteron Immobilien/Critical Path Couriers/Elf | Porsche 911 GT3-R | Porsche 3.6L Flat-6 | Pirelli | Kyser | | 254 | 0 | 0 | running | 0 |
| 2001 | 10 | 33 | 19 | GT | 8 | 69 | Pfaff | Porsche 911 GT3-R | Porsche 3.6L Flat-6 | Dunlop | Kyser | 1:26.986 | 329 | 0 | 0 | running | 17 |
| 2002 | 10 | 36 | 21 | GT | 6 | 60 | Pirelli | Porsche 911 GT3-R | Porsche 3.6L Flat-6 | Pirelli | PK | 1:25.432 | 330 | 0 | 0 | running | 19 |
| 2003 | 2 | 29 | 31 | GT | 14 | 03 | Pirelli/Jefferies & Company Inc. | Panoz Esperante GT-LM | Élan 5.0L V8 | Pirelli | Hyper Sport | 1:28.457 | 78 | 0 | 0 | mechanical | 0 |
| 2003 | 9 | 34 | 30 | GT | 14 | 03 | Pirelli/Jefferies & Company, Inc. | Panoz Esperante GT-LM | Élan 5.0L V8 | Pirelli | Hyper Sport | 1:37.375 | 186 | 0 | 0 | accident | 0 |
| 2012 | 10 | 12 | 40 | LMP2 | 3 | 27 | Trina Solar/Motegi Wheels | Lola B12/87 | Judd DB 3.6L V8 | Michelin | Dempsey | 1:13.214 | 220 | 0 | 0 | not running | 0 |
| 2013 | 10 | 27 | 23 | GTC | 2 | 27 | dempseychallenge.org | Porsche 997 GT3 Cup | Porsche 4.0L Flat-6 | Yokohama | Dempsey | 1:24.480 | 357 | 0 | 0 | running | 0 |
