PORSCHE RACING HISTORYPorsche 935 - Chassis No. 930 670 0180
5 February 1978 - 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)/Jim Busby (USA)/Howard Meister (USA) | Hal Shaw Racing (USA) | 10th | 7th | 9th | 608 laps |
18 March 1978 - 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)/Tom Spalding (USA) | Ore House - Vail (USA) | 3rd | 3rd | 8th | 239 laps |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | GTX | Tom Spalding (USA)/Hal Shaw, Jr. (USA) | Hal Shaw Racing (USA) | 23rd | 9th | 7th | 127 laps |
30 April 1978 - Laguna Seca 100 Miles - 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) | Hal Shaw Racing (USA) | 13th | 10th | 15th | 47 laps |
4 June 1978 - Trans-Am Westwood - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | TA-II | Hal Shaw, Jr. (USA) | Hal Shaw Racing (USA) | 2nd | 2nd | 4th | 55 laps |
8 July 1978 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | Gr.5 | Hal Shaw, Jr. (USA)/Monte Shelton (USA) | Hal Shaw Racing (USA) | 4th | 4th | 8th | 136 laps |
19 August 1978 - Trans-Am Mosport - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | TA-II | Hal Shaw, Jr. (USA) | Hal Shaw Racing Ore House (USA) | 7th | 6th | 6th | 38 laps |
8 October 1978 - Trans-Am Laguna Seca - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | TA-II | Hal Shaw, Jr. (USA) | Hal Shaw Racing (USA) | 32nd | 13th | 7th | 30 laps |
5 November 1978 - Trans-Am Mexico - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 13 | Porsche 935 | 930 670 0180 | TA-II | Hal Shaw, Jr. (USA) | Hal Shaw Racing (USA) | 21st | 11th | 14th | 25 laps |
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 |