PORSCHE RACING HISTORYPorsche 935 - Chassis No. 930 770 0910
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 935 | 930 770 0910 | Gr.5 | Jim Busby (USA)/Tom Frank (USA) | Jim Busby Racing (USA) | 12th | 10th | 7th | 156 laps |
20 August 1977 - Mosport 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 935 | 930 770 0910 | Gr.5 | Jim Busby (USA)/Eppie Wietzes (CDN) | Jim Busby Racing (USA) | 18th | 6th | 45 laps - Engine |
8 July 1978 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 71 | Porsche 935 | 930 770 0910 | Gr.5 | John Thomas (USA)/Otis Chandler (USA) | Otis Chandler (USA) | 6th | 5th | 15th | 132 laps |
4 February 1979 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 770 0910 | GTX | Bob Akin (USA)/Rob McFarlin (USA)/Roy Woods (USA) | Dick Barbour Racing (USA) | 52nd | 13th | 9th | 117 laps - Engine |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 770 0910 | GTX | Bob Akin (USA)/Rob McFarlin (USA)/Roy Woods (USA) | Dick Barbour Racing (USA) | 1st | 1st | 9th | 239 laps |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 770 0910 | GTX | Rob McFarlin (USA)/Roy Woods (USA)/Bob Akin (USA) | Dick Barbour Racing (USA) | 4th | 4th | 13th | 189 laps |
10 June 1979 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 72 | Porsche 935 | 930 770 0910 | IMSA+2.5 | Edwin Abate (USA)/Bob Garretson (USA)/Skeeter McKitterick (USA) | Dick Barbour (USA) | 8th | 3rd | 54th | 279 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 72 | Porsche 935 | 930 770 0910 | TA-II | Skeeter McKitterick (USA)/Buzz Marcus (USA)/Bob Garretson (USA) | Dick Barbour Performance (USA) | 9th | 4th | 16th | 161 laps |
2 September 1979 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935 | 930 770 0910 | GTX | Rob McFarlin (USA)/Bob Akin (USA) | Dick Barbour Racing (USA) | 5th | 5th | 11th | 120 laps |