PORSCHE RACING HISTORYPorsche 911 Carrera RSR - Chassis No. 911 360 0755
24 March 1973 - Sebring 12 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 1 | Porsche 911 Carrera RSR | 911 360 0755 | GTO | Michael Keyser (USA)/Milt Minter (USA) | Toad Hall Motor Racing (USA) | 2nd | 2nd | 5th | 225 laps |
21 July 1973 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 911 Carrera RSR | 911 360 0755 | GT | Michael Keyser (USA)/Milt Minter (USA) | Toad Hall Motor Racing (USA) | 8th | 1st | 15th | 168 laps |