Justin Marks Grand-Am Rolex Series results at Phoenix (road)
Back to Justin Marks career stats
| Year | Race # | Start | Finish | Class | Class Rank | Car # | Team | Engine | Owner | Qualifying Time | Laps | X Led | Laps Led | Points |
| 2004 | 3 | 22 | 39 | GT | 10 | 22 | BMW Financial Services | BMW M3 | PTG | 1:02.077 | 11 | 0 | 0 | 21 |
| 2005 | 11 | 3 | 7 | GT | 7 | 22 | Prototype Technology Group | BMW M3 | PTG | 1:02.771 | 147 | 0 | 0 | 24 |
