| 1993 1 h 45 min Portland |
5th |
Jeff Lapcevich |
+2.3 |
| 1993 2 h Mid-Ohio |
5th |
Ed De Long |
+1.4 |
| 1993 2 h Lime Rock |
6th |
Ed De Long |
+6.0 |
| 1993 2 h Mid-Ohio |
6th |
Bobby Brown |
+1.6 |
| 1993 1 h 45 min Atlanta |
7th |
Ed De Long |
+2.3 |
| 1993 1 h 45 min Atlanta |
8th |
Bobby Brown |
+2.4 |
| 1987 West Palm Beach 3 Hours |
9th |
Howard Katz |
+5.6 |
| 1989 Lime Rock 150 Laps |
10th |
Jeff Purner |
+17.5 |
| 1987 2 h Del Mar |
14th |
Howard Katz |
+7.0 |
| 1993 2 h Phoenix |
14th |
Jeff Lapcevich |
+12.2 |
| 1989 Road Atlanta 500 Kilometres |
15th |
Uli Bieri |
+11.8 |
| 1989 Lime Rock 150 Laps |
16th |
Uli Bieri |
+19.9 |
| 1989 Portland 300 Kilometres |
16th |
Jan Tingdal |
+8.3 |
| 1987 Sebring 12 Hours |
17th |
David Loring |
+16.3 |
| 1987 Laguna Seca 300 Kilometres |
18th |
Steve Phillips |
+6.7 |
| 1989 West Palm Beach 3 Hours |
18th |
Martino Finotto |
+7.5 |
| 1989 Watkins Glen 500 Kilometres |
18th |
Niki Leutwiler |
+18.0 |
| 1989 Mid-Ohio 500 Kilometres |
18th |
Uli Bieri |
+10.6 |
| 1986 500 miles of Watkins Glen |
18th |
Charles Morgan |
+14.0 |
| 1986 12 Hours of Sebring |
19th |
Charles Morgan |
+17.8 |