PORSCHE RACING HISTORYGeorge Drolsom (USA)
1969 : Daytona 24 Hours - 2nd in class : Sebring 12 Hours - 3rd in class
2 February 1969 - Daytona 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 47 | Porsche 911 | T2.0 | Harold Williamson (USA)/George Drolsom (USA) | Dr. Harold Williamson (USA) | 8th | 2nd | 34th | 577 laps |
22 March 1969 - Sebring 12 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 84 | Porsche 911 | T2.0 | George Drolsom (USA)/Harold Williamson (USA) | Dr. Harold Williamson (USA) | 29th | 3rd | 45th | 175 laps |