PORSCHE RACING HISTORYGary Belcher (USA)
1977
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 934 | 930 670 0175 | GTO | John Gunn (USA)/Gary Belcher (USA) | Belcher Racing (USA) | 4th | 4th | 4th | 228 laps |
17 April 1977 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 934 | 930 670 0175 | GTO | Gary Belcher (USA) | Belcher Racing (USA) | 27th | 17th | 11th | 24 laps - DNF |
1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 934 | 930 670 0175 | GTO | Gary Belcher (USA) | Belcher Racing (USA) | 40th | 26th | 13th | 1 lap - DNF |
15 May 1977 - Mid-America 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 09 | Porsche 934 | 930 670 0175 | GTO | Gary Belcher (USA) | Belcher Racing (USA) | 5th | 5th | 7th | 34 laps |
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 934/5 | Gr.5 | Gary Belcher (USA)/Roy Woods (USA) | Vasek Polak Racing (USA) | 15th | 11th | 14th | 153 laps |