PORSCHE RACING HISTORYBob Bergstrom (USA)
1973 : Daytona 24 Hours - 1st in class
4 February 1973 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 62 | Porsche 911 S | 119 220 830 | GT2.0 | Bob Bergstrom (USA)/Jim Cook (USA) | Bob Bergstrom (USA) | 10th | 1st | 44th | 571 laps |
24 March 1973 - Sebring 12 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 82 | Porsche 911 S | 119 220 830 | GTU | Bob Bergstrom (USA)/Jim Cook (USA) | Bob Bergstrom (USA) | 15th | 6th | 19th | 191 laps |