PORSCHE RACING HISTORYPorsche 911 - Chassis No. 303 339
20 March 1982 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 77 | Porsche 911 | 303 339 | GTU | Dudley Davis (USA)/Henry Godfredson (USA)/Charlie Lloyd (USA) | Dudley Davis (USA) | 21st | 5th | 50th | 184 laps |
22 August 1982 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 77 | Porsche 911 | 303 339 | GTU | Dudley Davis (USA)/Charlie Lloyd (USA) | Dudley Davis (USA) | 25th | 5th | 46th | 96 laps |