PORSCHE RACING HISTORYGrey Egerton (USA)
1973 : Watkins Glen 6 Hours - 3rd in class
24 March 1973 - Sebring 12 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 81 | Porsche 911 Carrera RSR | 911 360 0756 | GTO | Grey Egerton (USA)/Elliott Forbes-Robinson (USA) | Far West Racing (USA) | 4th | 4th | 7th | 217 laps |
21 July 1973 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 81 | Porsche 911 Carrera RSR | 911 360 0756 | GT | Grey Egerton (USA)/Elliott Forbes-Robinson (USA) | Pharr West Racing (USA) | 11th | 3rd | 20th | 164 laps |