PORSCHE RACING HISTORYDale 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 |
| 14 | Porsche 908/80 | 936-004 | S+2.0 | Reinhold Jöst (D)/Klaus Niedzwiedz (D)/Dale Whittington (USA) | Joest Racing (D) | DNF | 3rd | 60 laps - Accident |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 22 | Porsche 935 K3 | 930 770 0960 | Gr.5 | Marty Hinze (USA)/Dale Whittington (USA)/Preston Henn (USA) | Marty Hinze Racing (USA) | 5th | 5th | 15th | 157 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 95 | Porsche 935 K3 | 930 890 0023 | GTX | Dale Whittington (USA)/Randy Lanier (USA) | Whittington Bros (USA) | 30th | 11th | 8th | 50 laps |