PORSCHE RACING HISTORYPorsche 935 JLP-1 - Chassis No. JLP-1
Was built from 930 890 0037
27 August 1978 - Mid Ohio 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA)/Hurley Haywood (USA) | 12th | 8th | 2nd | 96 laps - DNF |
26 November 1978 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA) | JLP Racing (USA) | 3rd | 3rd | 8th | 65 laps |
4 February 1979 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA)/Al Holbert (USA)/Michael Keyser (USA) | JLP Racing (USA) | 65th | 21st | 5th | 12 laps - Electrics |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA)/Al Holbert (USA) | JLP Racing (USA) | 24th | 8th | 3rd | 176 laps - Transmission |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA)/Al Holbert (USA) | JLP Racing (USA) | 2nd | 2nd | 2nd | 195 laps |
3 June 1979 - Trans-Am Westwood - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | TA-II | John Paul Sr. (USA) | JLP Racing (USA) | 1st | 1st | 1st | 55 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | TA-II | John Paul Sr. (USA)/Al Holbert (USA) | J.L.P. Racing, Inc. (USA) | 6th | 2nd | 7th | 167 laps |
21 July 1979 - Trans-Am Road America - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | TA-II | John Paul Sr. (USA) | J.L.P. Racing, Inc. (USA) | 4th | 4th | 1st | 24 laps |
5 August 1979 - Trans-Am Watkins Glen - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | TA-II | John Paul Sr. (USA) | JLP Racing (USA) | 1st | 1st | 1st | 30 laps |
23 September 1979 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA) | JLP Racing (USA) | 2nd | 2nd | 3rd | 40 laps |
25 November 1979 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-1 | JLP-1 | GTX | John Paul Sr. (USA)/Paul Miller (USA) | JLP Racing (USA) | 4th | 4th | 6th | 47 laps |