PORSCHE RACING HISTORYJim Mullen (USA)
1984 : Road America 500 Miles - 1st in class
5 February 1984 - Daytona 24 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 009 00030 | GTP | Wayne Baker (USA)/Jim Mullen (USA)/Tom Blackaller (USA) | La Jolla Trading Group (USA) | 5th | 5th | 12th | 602 laps |
24 March 1984 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 K3 | 009 00030 | GTP | Wayne Baker (USA)/Jim Mullen (USA)/Tom Blackaller (USA) | Hino Truck (USA) | 4th | 4th | 12th | 258 laps |
26 August 1984 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 934 | 930 890 0014 | GTO | Chester Vincentz (USA)/Jim Mullen (USA) | Electrodyne (USA) | 10th | 1st | 25th | 113 laps |
25 November 1984 - Daytona Finale 3 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 5 | Porsche 962 | 962-102 | GTP | Bob Akin (USA)/Jim Mullen (USA) | Bob Akin Motor Racing (USA) | 51st | 23rd | 14th | 42 laps - DNF |