PORSCHE RACING HISTORYRobert Overby (USA)
1982
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 79 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTO | Bob Bergstrom (USA)/Tom Winters (USA)/Robert Overby (USA) | Promo. Ltd./Whitehall Cap. (USA) | 65th | 30th | 22nd | 12 laps - Suspension |
20 March 1982 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 79 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTO | Tom Winters (USA)/Robert Overby (USA)/Bob Bergstrom (USA) | ProMotion/Whitehall (USA) | 51st | 18th | 19th | 55 laps - DNF |