| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Engine | Owner | Qualifying Time | Laps | X Led | Laps Led | Points |
| 2002 | 1 | 59 | 9 | GT | 2 | 44 | Orbit Racing/cigarcigar.com/Brahan Porsche/Bank Von Ernst | Porsche GT3R | Orbit | 1:59.240 | 664 | 0 | 0 | 32 |
| 2003 | 1 | 18 | 31 | GT | 13 | 33 | Girard-Perregaux/New Century Mortgage Corp./Peris Companies Inc./Putnam Leasing Co. | Ferrari 360GT | Ferrari of Washington | 1:55.124 | 214 | 0 | 0 | 18 |
| 2003 | 12 | 37 | 26 | DP | 8 | 70 | SpeedSource | Ford Multimatic | SpeedSource | no time | 65 | 0 | 0 | 23 |
| 2004 | 1 | 11 | 43 | DP | 13 | 70 | Workscape | Ford Multimatic | SpeedSource | 1:49.240 | 304 | 0 | 0 | 18 |
| 2004 | 6 | 4 | 9 | DP | 9 | 9 | Mears Motor Coach | Pontiac Riley | SpeedSource | 1:48.067 | 69 | 1 | 10 | 22 |
| 2006 | 1 | 33 | 47 | GT | 24 | 70 | Mazdaspeed Motorsports/Mazda USA | Mazda RX-8 | SpeedSource | 1:53.846 | 284 | 0 | 0 | 7 |
| 2006 | 11 | 41 | 43 | GT | 18 | 70 | Mazdaspeed Motorsports/Mazda USA | Mazda RX-8 | SpeedSource | | 29 | 0 | 0 | 13 |
| 2007 | 1 | 31 | 15 | GT | 5 | 70 | Mazda/Mazdaspeed | Mazda RX-8 | SpeedSource | 1:52.222 | 624 | 0 | 0 | 26 |
| 2007 | 12 | 19 | 17 | GT | 1 | 70 | Mazda/Mazdaspeed | Mazda RX-8 | SpeedSource | 1:52.681 | 66 | 0 | 0 | 35 |
| 2008 | 1 | 26 | 9 | GT | 1 | 70 | Castrol Syntec/Mazda/Mazdaspeed | Mazda RX-8 | SpeedSource | 1:50.758 | 664 | 0 | 0 | 35 |
| 2008 | 9 | 21 | 15 | GT | 1 | 70 | Castrol Syntec/Mazda | Mazda RX-8 | SpeedSource | 1:50.641 | 67 | 0 | 0 | 35 |
| 2009 | 1 | 20 | 28 | GT | 17 | 70 | Castrol Syntec/Mazda | Mazda RX-8 | SpeedSource | 1:49.445 | 591 | 0 | 0 | 14 |
| 2009 | 7 | 20 | 16 | GT | 2 | 70 | Castrol Syntec/Mazda | Mazda RX-8 | SpeedSource | 1:51.146 | 66 | 0 | 0 | 32 |
| 2010 | 1 | 18 | 8 | GT | 1 | 70 | Castrol Syntec/Mazda | Mazda RX-8 | SpeedSource | 1:49.462 | 707 | 0 | 0 | 35 |
| 2010 | 8 | 14 | 16 | GT | 6 | 70 | Castrol Syntec/Mazda | Mazda RX-8 | SpeedSource | 1:50.495 | 78 | 0 | 0 | 25 |
| 2011 | 1 | 33 | 18 | GT | 6 | 70 | Castrol Edge/Mazdaspeed | Mazda RX-8 | SpeedSource | 1:50.020 | 670 | 0 | 0 | 25 |
| 2012 | 1 | 38 | 16 | GT | 6 | 70 | Mazda/Mazdaspeed/ModSpace/Castrol | Mazda RX-8 | SpeedSource | 1:51.022 | 722 | 0 | 0 | 25 |
| 2013 | 1 | 54 | 53 | GX | 4 | 70 | Mazdaspeed/Mazda | Mazda RX-8 | SpeedSource | 2:03.266 | 51 | 0 | 0 | 28 |
