PORSCHE RACING HISTORYPorsche 934/5 - Chassis No. 930 770 0959
One of only ten 934/5 officially made by porsche
1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 06 | Porsche 934/5 | 930 770 0959 | GTO | Dick Barbour (USA) | Dick Barbour Performance (USA) | 31st | 20th | 24th | 43 laps |
15 May 1977 - Mid-America 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 934/5 | 930 770 0959 | GTO | Dick Barbour (USA) | Dick Barbour Performance (USA) | 11th | 8th | 10th | 31 laps - DNF |
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 934/5 | 930 770 0959 | Gr.5 | Dick Barbour (USA)/Johnny Rutherford (USA) | Dick Barbour Performance (USA) | 4th | 4th | 10th | 166 laps |
30 April 1978 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 935 | 930 770 0959 | GTX | Bob Bondurant (USA) | Dick Barbour Performance (USA) | 17th | 12th | 8th | 47 laps |
5 November 1978 - Trans-Am Mexico - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 935 | 930 770 0959 | TA-II | Janet Guthrie (USA) | 4th | 4th | 10th | 30 laps |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 3 | Porsche 935 | 930 770 0959 | GTX | Bob Garretson (USA)/Gary Belcher (USA)/Bob Bondurant (USA) | Dick Barbour Racing (USA) | 3rd | 3rd | 7th | 235 laps |
22 April 1979 - Riverside 6 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 4 | Porsche 935 | 930 770 0959 | GTX | Skeeter McKitterick (USA)/Bob Garretson (USA)/Gary Belcher (USA) | Dick Barbour Racing (USA) | 9th | 7th | 12th | 179 laps |
10 June 1979 - Le Mans 24 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 73 | Porsche 935 | 930 770 0959 | IMSA+2.5 | Robert Kirby (USA)/Bob Harmon (USA)/John Hotchkis (USA) | Dick Barbour - Wynn's International (USA) | 9th | 4th | 39th | 276 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 935 | 930 770 0959 | TA-II | Tuck Thomas (USA)/Norm Ridgely (CDN)/Robert Kirby (USA) | Stanton/Barbour (USA) | 13th | 8th | 19th | 155 laps |
29 July 1979 - Sears Point 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 935 | 930 770 0959 | GTX | Bob Harmon (USA) | Stanton/Barbour (USA) | 28th | 16th | 30th | 9 laps - DNF |
5 August 1979 - Portland 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 935 | 930 770 0959 | GTX | Kees Nierop (CDN) | Stanton/Barbour (USA) | 10th | 10th | 13th | 48 laps |
2 September 1979 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 66 | Porsche 935 | 930 770 0959 | GTX | Kees Nierop (CDN)/Norm Ridgely (CDN) | Renaissance Group (USA) | 17th | 6th | 9th | 107 laps |