PORSCHE RACING HISTORYJohn Paul Sr. (USA)
1978 : Daytona 24 Hours - 2nd in class : Sebring 12 Hours - 1st in class : Le Mans 24 Hours - 1st in class : Daytona Finale 250 Miles - 3rd overall
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 33 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | Bonky Fernandez (PR)/John Paul Sr. (USA)/Phil Currin (USA) | Boricua Racing (PR) | 4th | 2nd | 14th | 637 laps |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 33 | Porsche 911 Carrera RSR | 911 460 9113 | GTO | John Paul Sr. (USA)/Bonky Fernandez (PR) | JLP Racing (USA) | 4th | 1st | 10th | 233 laps |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 890 0037 | GTX | John Paul Sr. (USA)/Bob Bondurant (USA) | Dick Barbour (USA) | 18th | 8th | 6th | 133 laps - Accident |
11 June 1978 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 90 | Porsche 935/77A | 930 890 0024 | IMSA+2.5 | Brian Redman (GB)/John Paul Sr. (USA)/Dick Barbour (USA) | Dick Barbour Racing (USA) | 5th | 1st | 16th | 338 laps |
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 |