PORSCHE RACING HISTORYMarty Hinze (USA)
1980
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 | 930 890 0024 | GTX | Buzz Marcus (USA)/Bob Harmon (USA)/Marty Hinze (USA) | Dick Barbour Racing (USA) | 60th | 16th | 16th | 52 laps - Accident |
5 July 1980 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 28 | Porsche 935 | 930 770 0960 | Gr.5 | Marty Hinze (USA)/Dale Whittington (USA) | Marty Hinze (USA) | 34th | 22nd | 18 laps - Gearbox |
21 September 1980 - Road Atlanta 50 Miles - Heat 1 - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935 | 930 770 0960 | GTX | Marty Hinze (USA) | Marty Hinze (USA) | 26th | 14th | 23rd | 8 laps - DNF |
21 September 1980 - Road Atlanta 50 Miles - Heat 2 - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935 | 930 770 0960 | GTX | Marty Hinze (USA) | Marty Hinze (USA) | 12th | 8th | 23rd | 12 laps |
30 November 1980 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 935 | 930 770 0960 | GTX | Marty Hinze (USA)/Gary Belcher (USA) | Marty Hinze (USA) | 5th | 5th | 14th | 62 laps |