PORSCHE RACING HISTORYLudwig Heimrath, Jr (CDN)
1984
5 February 1984 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 07 | Porsche 934 | 930 770 0958 | GTP | Ludwig Heimrath, Sr (CDN)/Ludwig Heimrath, Jr (CDN) | Heimrath Racing (CDN) | 70th | 26th | 22nd | 90 laps - DNF |
26 August 1984 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 26 | Porsche 935/80 | 000 00028 | GTP | Werner Frank (USA)/Ludwig Heimrath, Jr (CDN) | Toyota Village (USA) | 11th | 10th | 27th | 112 laps |
25 November 1984 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 50 | Porsche 924 Carrera GTR | WP0ZZZ93ZBS720005 | GTU | Ludwig Heimrath, Sr (CDN)/Ludwig Heimrath, Jr (CDN) | 46th | 10th | 57th | 56 laps - DNF |