PORSCHE RACING HISTORYMichael Keyser (USA)
1974 : Watkins Glen 6 Hours - 2nd in class
16 June 1974 - Le Mans 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 73 | Porsche 911 Carrera RSR | 911 460 9049 | GT | Michael Keyser (USA)/Milt Minter (USA)/Paul Blancpain (USA) | Paul Blancpain - Toad Hall (USA) | 20th | 11th | 33rd | 247 laps |
13 July 1974 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 911 Carrera RSR | 911 460 9049 | GT | Michael Keyser (USA)/Milt Minter (USA) | Toad Hall Motor Racing (USA) | 10th | 2nd | 10th | 149 laps |