| 1989 Watkins Glen 500 Kilometres |
15th |
Jan Tingdal |
+13.5 |
| 1989 Topeka 300 Kilometres |
15th |
Charles Morgan |
+12.4 |
| 1989 2 h San Antonio |
15th |
Ferdinand de Lesseps |
+9.1 |
| 1988 Del Mar 2 Hours |
18th |
Tom Hessert |
+10.0 |
| 1989 West Palm Beach 3 Hours |
19th |
Justus Reid |
+9.9 |
| 1989 Mid-Ohio 500 Kilometres |
19th |
Jan Tingdal |
+12.2 |
| 1989 Road Atlanta 500 Kilometres |
19th |
Michael Dow |
+14.0 |
| 1989 360 km Tampa |
20th |
Ferdinand de Lesseps |
+10.3 |
| 1989 300 km Sears Point |
22nd |
Ferdinand de Lesseps |
+12.2 |
| 1988 Columbus 300 Kilometres |
25th |
Tom Hessert |
+10.7 |
| 1989 24 Hours of Daytona |
26th |
Charles Morgan |
+15.1 |
| 1988 Miami 3 Hours |
26th |
Tom Hessert |
+10.6 |
| 1989 Sebring 12 Hours |
31st |
Reggie Smith |
+26.5 |
| 1988 Sears Point 300 Kilometres |
32nd |
David Loring |
+12.5 |