PORSCHE RACING HISTORYA. J. Foyt (USA)
b. 16 January 1935 (Houston, Texas, USA) - d.
Wikipedia
Anthony Joseph Foyt Jr.
1973 1974 1983 1984 1985 1986 1987 19881973
27 October 1973 - IROC Riverside 1 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 911 Carrera RSR | 911 460 0050 | A. J. Foyt (USA) | Roger Penske (USA) | 6th | 6th | 30 laps |
27 October 1973 - IROC Riverside 2 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 911 Carrera RSR | 911 460 0042 | A. J. Foyt (USA) | Roger Penske (USA) | 5th | 7th | 30 laps |
28 October 1973 - IROC Riverside 3 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 460 0090 | A. J. Foyt (USA) | Roger Penske (USA) | 6th | 8th | 30 laps |