John O'Steen (USA)
1979
15 July 1979 - Mid-Ohio 250 Miles - IMSA - International Motor Sport Association
No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
09 | Porsche 935/77A | 930 890 0021 | GTX | Preston Henn (USA)/John O'Steen (USA) | Michelob Light (USA) | 37th | 10th | 18th | 28 laps - DNF |