PORSCHE RACING HISTORYA. J. Foyt (USA)
1988
31 January 1988 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 962 | 962-HR4 | GTP | A. J. Foyt (USA)/Al Unser, Jr. (USA)/Elliott Forbes-Robinson (USA) | Copenhagen-A. J. Foyt Racing (USA) | 6th | 6th | 9th | 675 laps |
28 February 1988 - Miami 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 962 | 962-HR4 | GTP | A. J. Foyt (USA)/Rob Dyson (USA) | A J Foyt Enterprises (USA) | 7th | 7th | 5th | 123 laps |
19 March 1988 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 962 | 962-HR4 | GTP | A. J. Foyt (USA)/Hurley Haywood (USA) | A J Foyt Enterprises (USA) | 4th | 4th | 7th | 304 laps |
24 April 1988 - West Palm Beach 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 962 | 962-HR4 | GTP | A. J. Foyt (USA) | A J Foyt Enterprises (USA) | 22nd | 12th | 11th | 69 laps - DNF |