PORSCHE RACING HISTORYBob Bergstrom (USA)
1984
5 February 1984 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 79 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTU | Bob Bergstrom (USA)/Tom Winters (USA)/Innes Ireland (GB) | Whitehall/Promotion (USA) | 48th | 13th | 42nd | 236 laps - DNF |
24 March 1984 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 79 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTU | Tom Winters (USA)/Bob Bergstrom (USA) | Whitehall Promotions (USA) | 58th | 19th | 24th | 52 laps - Suspension |
29 April 1984 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 55 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTU | Bob Bergstrom (USA)/Tom Winters (USA) | Whitehall/Promotion (USA) | 51st | 15th | 29th | 18 laps - DNF |
29 July 1984 - Portland 3 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)/Bob Bergstrom (USA) | Whitehall Promotions (USA) | 19th | 6th | 23rd | 124 laps |
5 August 1984 - Sears Point IMSA GT - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 71 | Porsche 924 Carrera GTR | GTU | Bob Bergstrom (USA) | Whitehall Promotions (USA) | 8th | 5th | 8th | 30 laps |
26 August 1984 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 79 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720006 | GTU | Bob Bergstrom (USA)/Tom Winters (USA) | Whitehall Promotion (USA) | 54th | 18th | 37th | 7 laps - DNF |