PORSCHE RACING HISTORYPorsche 914/6 - Chassis No. 473 29 02456
21 August 1983 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 914/6 | 473 29 02456 | GTU | Richard Graves (USA)/Alice Graves (USA) | Richard Graves | 25th | 11th | 43rd | 87 laps |
11 September 1983 - Pocono 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 914/6 | 473 29 02456 | GTU | Richard Graves (USA)/Alice Graves (USA) | Richard Graves | 17th | 6th | 39th | 142 laps |
27 November 1983 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 36 | Porsche 914/6 | 473 29 02456 | GTU | Richard Graves (USA)/Alice Graves (USA) | 42nd | 16th | 63rd | 69 laps |
26 August 1984 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 36 | Porsche 914/6 | 473 29 02456 | GTU | Richard Graves (USA)/Alice Graves (USA) | R.A.G. Enterprises | 26th | 8th | 57th | 91 laps |