PORSCHE RACING HISTORYHal Shaw, Jr. (USA)
1979
4 February 1979 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | GTX | Hal Shaw, Jr. (USA)/Tom Spalding (USA)/Norm Ridgely (CDN) | Hal Shaw Racing (USA) | 40th | 7th | 42nd | 222 laps - Turbocharger |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | GTX | Hal Shaw, Jr. (USA)/Norm Ridgely (CDN) | Hal Shaw Racing (USA) | 6th | 5th | 14th | 231 laps |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | GTX | Hal Shaw, Jr. (USA)/Charles Moran (USA)/Mike Brockman (USA) | Hal Shaw Racing (USA) | 53rd | 19th | 14th | 6 laps - DNF |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | TA-II | Hal Shaw, Jr. (USA)/Gary Belcher (USA) | Hal Shaw Racing (USA) | 23rd | 9th | 17th | 120 laps - Pit Fire |