David Schroeder (USA)
1983
31 July 1983 - Portland 3 Hours - IMSA - International Motor Sport Association
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
54 | Porsche 911 Carrera RSR | GTO | David Schroeder (USA)/Karl Durkheimer (USA) | Karl Durkheimer (USA) | 18th | 6th | 16th | 120 laps |