| Date | Place |
Division |
Start |
Finish | Owner |
# |
Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mar 24 1973 | Sebring International Raceway | IMSA GT | 68 | 28 | Performance Associates | 3 | Chevrolet Corvette | 159 | did not finish | ||
| Nov 25 1973 | Daytona International Speedway | IMSA GT | 52 | Nick Engels | 11 | Chevrolet Corvette | 14 | 0 | |||
| May 4 1974 | Lime Rock Park | SCCA Trans Am | 11 | 31 | Nick's Automotive | Chevrolet Corvette | 1 | 50 | engine | ||
| Feb 2 1975 | Daytona International Speedway | IMSA GT/World Sports Car Championship | 37 | 18 | John E. Hulen | 85 | Porsche 914/6 | 528 | 900 | running | |
| Sep 7 1975 | Brainerd International Raceway | SCCA Trans Am | 22 | 22 | Chevrolet Corvette 454 | 0 | did not start | 0 | |||
| Feb 1 1976 | Daytona International Speedway | IMSA/WSCC GT | 49 | 40 | John E. Hulen | 85 | Porsche 914/6 | 267 | did not finish | ||
| May 9 1976 | Pocono International Raceway | SCCA Trans Am | 8 | 30 | 80 | Chevrolet Corvette 454 | 6 | 100 | water leak | 0 | |
| May 30 1976 | Nelson Ledges | SCCA Trans Am | 9 | 25 | 80 | Chevrolet Corvette 454 | 31 | stub axle | 0 | ||
| Jul 24 1976 | Road America | SCCA Trans Am | 42 | 11 | 80 | Chevrolet Corvette 454 | 24 | 700 | running | 0 | |
| Aug 21 1976 | Mosport International Raceway | SCCA Trans Am | 18 | 29 | 80 | Chevrolet Corvette 454 | 2 | engine | |||
| Sep 5 1976 | Circuit Trois-Rivières | SCCA Trans Am | 8 | 26 | 80 | Chevrolet Corvette 454 | 12 | 450 | mechanical | 0 | |
| Jun 26 1977 | Nelson Ledges | SCCA Trans Am | 21 | 22 | Nagel Racing | 80 | Chevrolet Corvette 454 | 37 | suspension | 0 | |
| Jul 9 1977 | Watkins Glen International | WSCC/SCCA Trans Am | 27 | 22 | Nagel Racing | 80 | Chevrolet Corvette | 124 | 600 | running | |
| Jul 31 1977 | Hallett Motor Racing Circuit | SCCA Trans Am | 11 | 7 | Nagel Racing | 80 | Chevrolet Corvette 454 | 52 | 1,100 | running | 0 |
| Aug 20 1977 | Mosport International Raceway | WSCC/SCCA Trans Am | 15 | 16 | Nagel Racing | 80 | Chevrolet Corvette 427 | 92 | 700 | engine | |
| Sep 3 1977 | Road America | SCCA Trans Am | 11 | 43 | King Engine | 80 | Chevrolet Corvette 454 | 8 | body damage | 0 | |
| Sep 4 1977 | Road America | SCCA Trans Am | 42 | 39 | Nagel Racing | 80 | Chevrolet Corvette 454 | 13 | running | 0 | |
| Sep 11 1977 | Circuit Mont-Tremblant | SCCA Trans Am | 4 | 5 | Nagel Racing | 80 | Chevrolet Corvette 454 | 36 | 2,300 | running | 0 |
| Feb 5 1978 | Daytona International Speedway | IMSA GT/World Sports Car Championship | 47 | 67 | John Hulen | 85 | Porsche 914/6 | 0 | engine | ||
| Mar 18 1978 | Sebring International Raceway | IMSA GT | 40 | 23 | John Hulen | 85 | Porsche 914/6 | 174 | running | ||
| Jun 4 1978 | Westwood Motorsport Park | SCCA Trans Am | 6 | 3 | Metamorphic | 80 | Chevrolet Corvette | 55 | 2,320 | running | 0 |
| Jun 11 1978 | Portland International Raceway | SCCA Trans Am | 9 | 21 | Metamorphic | 80 | Chevrolet Corvette | 30 | 650 | fuel cell | 0 |
| Jun 25 1978 | Circuit Mont-Tremblant | SCCA Trans Am | 20 | 13 | Metamorphic | 80 | Chevrolet Corvette | 34 | 500 | running | 0 |
| Jul 8 1978 | Watkins Glen International | WSCC/SCCA Trans Am | 22 | 37 | Nagel Racing Enterprises | 80 | Chevrolet Corvette 454 | 36 | 500 | axle | 0 |
| Aug 13 1978 | Brainerd International Raceway | SCCA Trans Am | 12 | 35 | Metamorphic | 80 | Chevrolet Corvette 454 | 16 | 500 | flat tire | 0 |
| Aug 19 1978 | Mosport International Raceway | SCCA Trans Am | 10 | 10 | Metamorphic | 80 | Chevrolet Corvette 454 | 38 | 1,260 | running | 0 |
| Sep 4 1978 | Road America | SCCA Trans Am | 14 | 28 | Metamorphic | 80 | Chevrolet Corvette 454 | 33 | 1,000 | differential | 0 |
| Oct 8 1978 | Laguna Seca Raceway | SCCA Trans Am | 19 | 39 | Metamorphic | 80 | Chevrolet Corvette 427 | 4 | 400 | accident | 0 |
| Nov 5 1978 | Autódromo Hermanos Rodríguez | SCCA Trans Am | 17 | 23 | Metamorphic | 80 | Chevrolet Corvette 427 | 21 | 807 | running | 0 |
| Jul 7 1979 | Watkins Glen International | WSCC/SCCA Trans Am | 34 | 38 | E. F. Miller & Co. | 93 | Chevrolet Corvette Greenwood 011 | 18 | 0 | off course | 0 |
| Jul 7 1979 | Watkins Glen International | WSCC/SCCA Trans Am | 44 | 14 | E. F. Miller & Co. | 92 | Chevrolet Corvette 454 | 149 | 1,800 | running | 0 |
| Aug 5 1979 | Watkins Glen International | SCCA Trans Am | 14 | 29 | 8 | Chevrolet Corvette | 5 | oil cooler | 0 | ||
| Sep 1 1979 | Circuit Trois-Rivières | SCCA Trans Am | 24 | 30 | 8 | Chevrolet Corvette | 0 | did not start | 0 | ||
| Aug 10 1980 | Brainerd International Raceway | SCCA Trans Am | 28 | 28 | Engels Racing | 8 | Chevrolet Roadster | 7 | belt | 0 | |
| Aug 23 1980 | Circuit Trois-Rivières | SCCA Trans Am | 3 | 4 | Engels Racing | 8 | Chevrolet Corvette | 35 | 1,700 | running | 0 |
| Sep 7 1980 | Westwood Motorsport Park | SCCA Trans Am | 8 | 19 | Engels Racing | 8 | Chevrolet Corvette | 3 | 175 | bodywork | 0 |
| Oct 19 1980 | Laguna Seca Raceway | SCCA Trans Am | 24 | 41 | Engels Racing | 8 | Chevrolet Corvette | 3 | mechanical | 0 | |
| Oct 25 1980 | Riverside International Raceway | SCCA Trans Am | 21 | 24 | Engels Racing | 8 | Chevrolet Corvette | 36 | running | 0 |