PORSCHE RACING HISTORYJohn Higgins (USA)
1981
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | GTU | John Higgins (USA)/Chip Mead (USA)/Bill Johnson (USA) | The Foreign Exchange | 38th | 13th | 45th | 136 laps |
30 August 1981 - Mid-Ohio 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | Gr.4 | John Higgins (USA)/Larry Connor (USA) | Foreign Exchange | 23rd | 16th | 37th | 104 laps |