| Date | Place |
Division |
Start |
Finish | Owner |
# |
Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 28 1973 | Road America | SCCA Trans Am | 41 | 19 | Mantapart | Opel Manta | 61 | 150 | running | 0 | |
| Aug 19 1973 | Edmonton International Speedway | SCCA Trans Am | 18 | 14 | American International Racing | 11 | Opel Manta | 90 | 500 | accident | |
| Jul 27 1974 | Road America | SCCA Trans Am | 36 | 19 | Mantapart-Irmscher | Opel Manta | 40 | 350 | running | 0 | |
| Aug 24 1975 | Mid-Ohio Sports Car Course | IMSA GT | 41 | 31 | Opel Manta | 89 | did not finish |