PORSCHE RACING HISTORYGary Hirsch (USA)
1981
21 March 1981 - Sebring 12 Hours - World Championship for Drivers and Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 53 | Porsche 911 Carrera RSR | GTO | Fritz Hochreuter (CDN)/Rainer Brezinka (CDN)/Gary Hirsch (USA) | Fritz Hochreuter (CDN) | 45th | 17th | 56th | 114 laps - DNF |
30 August 1981 - Mid-Ohio 500 km - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 93 | Porsche 911 Carrera RSR | 006 00024 | Gr.4 | Rainer Brezinka (CDN)/Gary Hirsch (USA) | R & H Racing (CDN) | 40th | 24th | 30th | 5 laps - DNF |