PORSCHE RACING HISTORYBob Garretson (USA)
1982 : Daytona 24 Hours - 3rd overall
31 January 1982 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 46 | Porsche 935 K3 | 009 00030 | GTP | Mauricio DeNarváez (COL)/Bob Garretson (USA)/Jeff Wood (USA) | Garretson Ent. (USA) | 3rd | 3rd | 12th | 683 laps |
20 June 1982 - Le Mans 24 Hours - World Endurance Championship
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 77 | Porsche 935 K3 | 009 00030 | Gr.5 | Anny-Charlotte Verney (F)/Ray Ratcliff (USA)/Bob Garretson (USA) | Garretson Developments | 11th | 5th | 43rd | 299 laps |