PORSCHE RACING HISTORYAsh Tisdelle (USA)
1971 : Sebring 12 Hours - 1st in class
31 January 1971 - Daytona 24 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 15 | Porsche 911 T/R | 118 20 809 | GT2.5 | Peter Kirill (USA)/Ash Tisdelle (USA) | K&T Enterprises (USA) | DNF | 30th | 163 laps - Engine |
20 March 1971 - Sebring 12 Hours - International Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 T/R | 118 20 809 | T2.5 | Ash Tisdelle (USA)/Peter Kirill (USA) | K&T Enterprises (USA) | 11th | 1st | 43rd | 199 laps |