PORSCHE RACING HISTORYDon Whittington (USA)
1981
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 94 | Porsche 935 K3 | 930 670 0152 | GTX | Don Whittington (USA)/Bill Whittington (USA)/Dale Whittington (USA) | Whittington Brothers Racing (USA) | 57th | 19th | 9th | 84 laps - Engine |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 94 | Porsche 935 K3 | 930 670 0152 | GTX | Don Whittington (USA)/Bill Whittington (USA)/Dale Whittington (USA) | Whittington Bros (USA) | 65th | 22nd | 9th | 43 laps - Engine |
14 June 1981 - Le Mans 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 935 K3 | 01 00020 | Gr.5 | Ted Field (USA)/Bill Whittington (USA)/Don Whittington (USA) | Porsche Kremer Racing (D) | DNF | 6th | 57 laps - Engine |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 00 | Porsche 935 K3/80 | 000 00027 | GTX | Ted Field (USA)/Don Whittington (USA) | Interscope Racing (USA) | 5th | 5th | 10th | 64 laps |