PORSCHE RACING HISTORYJohn Paul Sr. (USA)
1981 : Riverside 6 Hours - 2nd overall
1 February 1981 - Daytona 24 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-2 | 009 00043 | GTX | John Paul Sr. (USA)/John Paul, Jr. (USA) | JLP Racing (USA) | 60th | 21st | 5th | 53 laps - Piston |
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935 JLP-3 | JLP-3 | GTX | John Paul Sr. (USA)/John Paul, Jr. (USA) | JLP Racing (USA) | 66th | 23rd | 6th | 40 laps - Suspension |
26 April 1981 - Riverside 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935 JLP-3 | JLP-3 | GTX | John Paul Sr. (USA)/John Paul, Jr. (USA) | JLP Racing (USA) | 2nd | 2nd | 1st | 199 laps |
12 July 1981 - Watkins Glen 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-3 | JLP-3 | Gr.5 | John Paul, Jr. (USA)/John Paul Sr. (USA) | J.L.P. Racing (USA) | DNF | 2nd | 19 laps - Engine |
16 August 1981 - Mosport 6 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-3 | JLP-3 | GTX | John Paul, Jr. (USA)/John Paul Sr. (USA) | JLP Racing (USA) | 30th | 14th | 3rd | 41 laps - Accident Damage |
23 August 1981 - Road America 500 Miles - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-3 | JLP-3 | GTX | John Paul, Jr. (USA)/John Paul Sr. (USA) | JLP Racing (USA) | 13th | 8th | 1st | 104 laps - Engine |
13 September 1981 - Road Atlanta 150 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 18 | Porsche 935 JLP-3 | JLP-3 | GTX | John Paul Sr. (USA) | JLP Racing (USA) | 27th | 14th | 6th | 8 laps - DNF |