PORSCHE RACING HISTORYCraig Siebert (USA)
1982 : Daytona 24 Hours - 2nd overall : Charlotte 500 km - 3rd overall
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 2nd | 2nd | 7th | 708 laps |
20 March 1982 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Derek Bell (GB)/Craig Siebert (USA)/Bob Akin (USA) | Bob Akin Motor Racing (USA) | 12th | 6th | 5th | 212 laps |
25 April 1982 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA)/Derek Bell (GB) | Bob Akin Motor Racing (USA) | 4th | 4th | 9th | 183 laps |
16 May 1982 - Charlotte 500 km - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 935 K3/80 | 000 00013 | GTP | Bob Akin (USA)/Craig Siebert (USA) | Bob Akin Motor Racing (USA) | 3rd | 3rd | 4th | 133 laps |