PORSCHE RACING HISTORYPorsche 935/77A - Chassis No. 930 890 0033
1978 - Destroyed in a massive accident at Le Mans 24 Hours
5 February 1978 - Daytona 24 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0033 | GTX | Dick Barbour (USA)/Manfred Schurti (FL)/Johnny Rutherford (USA) | Dick Barbour Racing (USA) | 2nd | 2nd | 8th | 650 laps |
18 March 1978 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0033 | GTX | Dick Barbour (USA)/Rolf Stommelen (D)/Manfred Schurti (FL) | Dick Barbour Performance (USA) | 57th | 16th | 2nd | 47 laps - Suspension |
2 April 1978 - Talladega 6 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935/77A | 930 890 0033 | GTX | Dick Barbour (USA)/Johnny Rutherford (USA) | Dick Barbour Racing (USA) | 3rd | 3rd | 3rd | 161 laps |
30 April 1978 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 9 | Porsche 935/77A | 930 890 0033 | GTX | Dick Barbour (USA) | Dick Barbour Racing (USA) | 6th | 6th | 7th | 50 laps |
11 June 1978 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 935/77A | 930 890 0033 | IMSA+2.5 | Bob Garretson (USA)/Bob Akin (USA)/Steve Earle (USA) | Dick Barbour Racing (USA) | DNF | 31st | 159 laps - Accident |