| Pos | No. | Name | Class | Overall BestTm | In Session | Diff | TTR Best Tm | TTR Best Tm | TTR 2nd Best | TTR 2nd Best |
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 17 | Alan M. Prentiss | CF | 4:07.638 | - | 2:09.727 | 2:03.804 | 2:03.834 | 2:04.058 | 2:04.121 |
| 1 | 77 | Dave Deborde | GT2 | 4:03.207 | - | 2:05.296 | 2:00.590 | 2:02.617 | 2:00.992 | 2:02.623 |
| 5 | 2 | Loren Enstad | ITA | 4:23.754 | - | 2:25.843 | 2:11.911 | 2:11.843 | 2:14.069 | 2:14.533 |
| 3 | 43 | Chuck Johnson | SP | 4:09.031 | - | 2:11.120 | 2:02.290 | 2:06.741 | 2:02.703 | 2:06.901 |
| 4 | 196 | Gene Thrall | TT-3 | 4:22.046 | - | 2:24.135 | 2:10.338 | 2:11.708 | 2:10.637 | 2:12.644 |