PORSCHE RACING HISTORY934/5
1977
13 March 1977 - DRM Zolder Bergischer Löwe - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 934/5 | 930 670 0540 | Gr.5 | Alberto Zirkel (D) | Kannacher Racing (D) | 10th | 10th | 12th | 21 laps |
19 March 1977 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA)/Peter Gregg (USA) | Brumos Racing (USA) | 3rd | 3rd | 1st | 229 laps |
| 0 | Porsche 934/5 | 930 770 0953 | GTO | Danny Ongais (USA)/Ted Field (USA)/Hurley Haywood (USA) | Vasek Polak/Interscope Racing (USA) | 5th | 5th | 2nd | 218 laps |
17 April 1977 - Road Atlanta 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 30 | Porsche 934/5 | 930 770 0954 | GTO | George Dyer (USA) | George Dyer (USA) | 3rd | 3rd | 6th | 40 laps |
| 00 | Porsche 934/5 | 930 770 0953 | GTO | Ted Field (USA) | Interscope Racing (USA) | 9th | 9th | 14th | 38 laps |
| 95 | Porsche 934/5 | 930 770 0957 | GTO | Hurley Haywood (USA) | Bob Hagestad (USA) | 31st | 21st | 3rd | 8 laps - DNF |
| 0 | Porsche 934/5 | 930 770 0953 | GTO | Danny Ongais (USA) | Interscope Racing (USA) | 32nd | 22nd | 8th | 6 laps - Oil Cooler |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby (USA) | 35th | 23rd | 31st | 4 laps - DNF |
1 May 1977 - Laguna Seca 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 0 | Porsche 934/5 | 930 770 0953 | GTO | Danny Ongais (USA) | Interscope Racing (USA) | 1st | 1st | 2nd | 52 laps |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby Racing (USA) | 2nd | 2nd | 4th | 52 laps |
| 16 | Porsche 934/5 | 930 770 0955 | GTO | George Follmer (USA) | Vasek Polak Racing (USA) | 3rd | 3rd | 3rd | 52 laps |
| 95 | Porsche 934/5 | 930 770 0957 | GTO | Hurley Haywood (USA) | Bob Hagestad Porsche Audi (USA) | 7th | 7th | 37th | 51 laps |
| 00 | Porsche 934/5 | 930 770 0953 | GTO | Ted Field (USA) | Interscope Racing (USA) | 10th | 10th | 11th | 50 laps |
| 06 | Porsche 934/5 | 930 770 0959 | GTO | Dick Barbour (USA) | Dick Barbour Performance (USA) | 31st | 20th | 24th | 43 laps |
| 30 | Porsche 934/5 | 930 770 0954 | GTO | George Dyer (USA) | George Dyer (USA) | 37th | 24th | 7th | 11 laps - DNF |
15 May 1977 - Mid-America 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 95 | Porsche 934/5 | 930 770 0957 | GTO | Hurley Haywood (USA) | Bob Hagestad (USA) | 3rd | 3rd | 1st | 35 laps |
| 6 | Porsche 934/5 | 930 770 0959 | GTO | Dick Barbour (USA) | Dick Barbour Performance (USA) | 11th | 8th | 10th | 31 laps - DNF |
| 61 | Porsche 934/5 | 930 770 0951 | GTO | Jim Busby (USA) | Jim Busby (USA) | 25th | 14th | 3rd | 5 laps - DNF |
30 May 1977 - Trans-Am Kent - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 1st | 1st | 5th | 44 laps |
| 16 | Porsche 934/5 | 930 770 0955 | TA-II | George Follmer (USA) | Vasek Polak Racing (USA) | 2nd | 2nd | 3rd | 44 laps |
| 12 | Porsche 934/5 | 930 770 0960 | TA-II | Ron Brown (USA) | 36th | 10th | 9th | 1 lap - Accident | |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche+Audi (USA) | DNS | 1st | Accident in practice |
12 June 1977 - Le Mans 24 Hours - Non Championship Race
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 49 | Porsche 934/5 | Gr.5 | Hubert Striebig (F)/Guy Chasseuil (F)/Hughes Kirschoffer (F) | Hubert Striebig - B.P. (F) | DNF | 33rd | 65 laps - Head |
12 June 1977 - Trans-Am Portland - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 16 | Porsche 934/5 | 930 770 0955 | TA-II | George Follmer (USA) | Vasek Polak Racing (USA) | 1st | 1st | 1st | 50 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 6th | 4th | 4th | 48 laps |
| 12 | Porsche 934/5 | 930 770 0960 | TA-II | Ron Brown (USA) | Ron Brown Enterprises (USA) | 7th | 5th | 11th | 48 laps |
26 June 1977 - Trans-Am Nelson Ledges - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 95 | Porsche 934/5 | 930 770 0957 | TA-II | Bob Hagestad (USA) | Bob Hagestad (USA) | 1st | 1st | 4th | 50 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 3rd | 50 laps |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche (USA) | 7th | 4th | 1st | 48 laps |
3 July 1977 - DRM Norisring - DRM - Deutsche Rennsport Meisterschaft
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 72 | Porsche 934/5 | Div.I | Klaus Utz (D) | Hahn Sportwagen GmbH (D) | DNF | 10th | 37 laps |
9 July 1977 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 95 | Porsche 934/5 | 930 770 0957 | Gr.5 | Hurley Haywood (USA)/Bob Hagestad (USA) | Bob Hagestad Porsche Audi (USA) | 3rd | 3rd | 5th | 169 laps |
| 66 | Porsche 934/5 | 930 770 0959 | Gr.5 | Dick Barbour (USA)/Johnny Rutherford (USA) | Dick Barbour Performance (USA) | 4th | 4th | 10th | 166 laps |
| 0 | Porsche 934/5 | 930 770 0953 | Gr.5 | Danny Ongais (USA)/Ted Field (USA) | Interscope Racing (USA) | 5th | 5th | 8th | 165 laps |
| 59 | Porsche 934/5 | 930 770 0952 | Gr.5 | Peter Gregg (USA)/Claude Ballot-Léna (F)/John Gunn (USA) | Brumos Racing (USA) | 6th | 6th | 6th | 163 laps |
| 7 | Porsche 934/5 | 930 770 0958 | Gr.5 | Ludwig Heimrath, Sr (CDN)/Paul Miller (USA) | Heimrath Racing (CDN) | 8th | 8th | 9th | 160 laps |
| 2 | Porsche 934/5 | Gr.5 | Gary Belcher (USA)/Roy Woods (USA) | Vasek Polak Racing (USA) | 15th | 11th | 14th | 153 laps |
31 July 1977 - Trans-Am Hallett - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche (USA) | 1st | 1st | 1st | 55 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 5th | 54 laps |
14 August 1977 - Trans-Am Brainerd - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche (USA) | 1st | 1st | 1st | 33 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 6th | 33 laps |
20 August 1977 - Mosport 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN)/Paul Miller (USA) | Heimrath Racing (CDN) | 1st | 1st | 5th | 240 laps |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA)/Bob Wollek (F) | Brumos Porsche+Audi (USA) | DSQ | 4th | Illegal Suspension |
3 September 1977 - Trans-Am Road America - Race I - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 1st | 1st | 2nd | 20 laps |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche-Audi (USA) | 2nd | 2nd | 1st | 20 laps |
4 September 1977 - Trans-Am Road America - Race 2 - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche-Audi (USA) | 1st | 1st | 2nd | 20 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 19th | 7th | 1st | 18 laps |
9 November 1977 - Trans-Am Mont-Tremblant - Trans-Am
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 59 | Porsche 934/5 | 930 770 0952 | TA-II | Peter Gregg (USA) | Brumos Porsche (USA) | 1st | 1st | 1st | 38 laps |
| 7 | Porsche 934/5 | 930 770 0958 | TA-II | Ludwig Heimrath, Sr (CDN) | Heimrath Racing (CDN) | 2nd | 2nd | 13th | 38 laps |