PORSCHE RACING HISTORYMilt Minter (USA)
1981 : Sebring 12 Hours - 3rd overall
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 0 | Porsche 935 K3/80 | 000 00010 | GTX | Ted Field (USA)/Milt Minter (USA)/Danny Ongais (USA) | Interscope Racing (USA) | 39th | 12th | 10th | 287 laps - Accident |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935 K3 | 930 770 0960 | GTX | Marty Hinze (USA)/Milt Minter (USA)/Bill Whittington (USA) | Marty Hinze Racing (USA) | 3rd | 3rd | 12th | 240 laps |