PORSCHE RACING HISTORYJohn Graves (USA)
1976 : Watkins Glen 6 Hours - 2nd in class
1 February 1976 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 43 | Porsche 911 Carrera RSR | 911 560 9112 | GTO | John Graves (USA)/John O'Steen (USA)/Dave Helmick (USA) | Ecurie Escargot (USA) | 8th | 7th | 16th | 493 laps - DNF |
10 July 1976 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 911 Carrera RSR | 911 560 9112 | TA-II | John Graves (USA)/Dave Helmick (USA)/John O'Steen (USA) | Ecurie Escargot (USA) | 6th | 2nd | 14th | 164 laps |