| 4.7.1975 | 250 mile Daytona Paul Revere | 1 | #911 460 9049 | Michael Keyser | Toad Hall Racing | 24th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 58 | #911 460 9054 | Febles / Cruz | | 11th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 67 | #911 360 0701 | McClain | Dave White | 43rd |
| 4.7.1975 | 250 mile Daytona Paul Revere | 95 | #911 460 9057 | Bob Hagestad | Bob Hagestad | DNA |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 460 9069 | Edy Brandenberger | Edy Brandenberger | 2nd |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | | Anton Stocks | AMC Duisburg | 3rd |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #004 0005 | Hans Halfmann | Tebernum-Porsche-Racing Team | 5th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 560 9117 | Hans Heyer | Vaillant Kremer Team | 1st |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 4th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 360 0921 | Edgar Kaib | Edgar Kaib | 7th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 360 0760 | Hubert Schmidt | Autohaus Max Moritz | 8th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | | Peter Bulian | Peter Bulian | 9th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | | Hubert Striebig | Hubert Striebig | 6th |
| 12.7.1975 | 6 h Watkins Glen | 14 | #005 0009 | Holbert / Gregg | Holbert Porsche-Audi, Inc. | 7th |
| 12.7.1975 | 6 h Watkins Glen | 74 | #911 560 9123 | Heimrath / Bartling | Heimrath Racing | 8th |
| 12.7.1975 | 6 h Watkins Glen | 95 | #911 460 9057 | Hagestad / Haywood | Hagestad Porsche-Audi | 5th |
| 13.7.1975 | Sweden Falkenberg | | | Jan Lundgardh | | 3rd |
| 13.7.1975 | Sweden Falkenberg | | | Roland Larsson | | 2nd |
| 20.7.1975 | 100 mile Mid America II | 1 | #911 460 9049 | Michael Keyser | Toad Hall | 26th |
| 20.7.1975 | 100 mile Mid America I | 1 | #911 460 9049 | Michael Keyser | Toad Hall | 25th |
| 20.7.1975 | 100 mile Mid America II | 6 | | Hurley Haywood | G. W. Dickinson | 25th |
| 20.7.1975 | 100 mile Mid America I | 6 | | Hurley Haywood | G. W. Dickinson | 3rd |
| 20.7.1975 | DRM Diepholz | 7 | #911 560 9117 | Bob Wollek | Vaillant Kremer Team | 1st |
| 20.7.1975 | 100 mile Mid America I | 8 | #911 460 0035 | Bob Beasley | Bob Beasley | DNA |
| 20.7.1975 | 100 mile Mid America II | 8 | #911 460 0035 | Bob Beasley | Bob Beasley | DNA |
| 20.7.1975 | 100 mile Mid America II | 14 | #005 0009 | Al Holbert | Holbert's Porsche | 1st |
| 20.7.1975 | 100 mile Mid America I | 14 | #005 0009 | Al Holbert | Holbert's Porsche | 1st |
| 20.7.1975 | 100 mile Mid America II | 23 | #911 360 0727 | Charlie Kemp | ArmorAll Racing | DNA |
| 20.7.1975 | 100 mile Mid America I | 23 | #911 360 0727 | Charlie Kemp | ArmorAll Racing | DNA |
| 20.7.1975 | 100 mile Mid America II | 30 | #911 460 9048 | George Dyer | Dyer Racing | 23rd |
| 20.7.1975 | 100 mile Mid America I | 30 | #911 460 9048 | George Dyer | Dyer Racing | 4th |
| 20.7.1975 | Targa Florio | 37 | | Guagliardo / Marchiolo | | DNF |
| 20.7.1975 | Targa Florio | 41 | | Barraja / Saporito | | 16th |
| 20.7.1975 | Targa Florio | 42 | | Rappa / "Iccudrac" | | DNF |
| 20.7.1975 | 100 mile Mid America II | 43 | #911 560 9112 | John O'Steen | Ecurie Escargot | 3rd |
| 20.7.1975 | 100 mile Mid America I | 43 | #911 560 9112 | John O'Steen | Ecurie Escargot | 5th |
| 20.7.1975 | Targa Florio | 43 | #911 360 0894 | Barraco / Chiaramonte | | DNF |
| 20.7.1975 | Targa Florio | 49 | | Berruto / Gellini | | 12th |
| 20.7.1975 | Targa Florio | 52 | #911 460 9110 | Capra / Lepri | | 11th |
| 20.7.1975 | Targa Florio | 55 | #006 0002 | "Tambauto" / Radicella | | 4th |
| 20.7.1975 | 100 mile Mid America I | 59 | | Peter Gregg | Brumos Porsche | 2nd |
| 20.7.1975 | 100 mile Mid America II | 59 | | Peter Gregg | Brumos Porsche | 2nd |
| 20.7.1975 | 100 mile Mid America I | 61 | #911 560 9122 | Jim Busby | Beverly P-A/Mitcom | 7th |
| 20.7.1975 | 100 mile Mid America II | 61 | #911 560 9122 | Jim Busby | Beverly P-A/Mitcom | 7th |
| 20.7.1975 | 100 mile Mid America I | 73 | #911 360 0588 R6 | John McClelland | | 32nd |
| 20.7.1975 | 100 mile Mid America I | 74 | #911 560 9123 | Ludwig Heimrath | Heimrath P-A | DNA |
| 20.7.1975 | 100 mile Mid America II | 74 | | Ludwig Heimrath | Heimrath P-A | DNA |
| 20.7.1975 | 100 mile Mid America I | 75 | | Norm Ridgely | Norm Ridgely | DNA |
| 20.7.1975 | 100 mile Mid America II | 75 | | Norm Ridgely | Norm Ridgely | DNA |
| 20.7.1975 | 100 mile Mid America I | 95 | #911 460 9057 | Bob Hagestad | Hagestad P-A | 6th |
| 20.7.1975 | 100 mile Mid America II | 95 | #911 460 9057 | Bob Hagestad | Hagestad P-A | 6th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 321 | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 3rd |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 322 | #911 460 9078 | Eberhard Sindel | Rallyegemeinschaft Ulm | 1st |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 324 | #911 460 9036 | Nicolas Koob | Nicolas Koob | 8th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 325 | #004 0005 | Hans Halfmann | Tebernum Porsche-Teile | 2nd |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 326 | #911 460 9064 | Helmut Bez | SCCS Stuttgart | 7th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 327 | #911 360 0898 | Fritz Müller | Vereinigung Süddeutscher Automobilsportler | 9th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 328 | | Ralf-Dieter Schreiber | Ralf-Dieter Schreiber | DNA |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 329 | #911 460 9018 | Klaus Utz | Autohaus Max Moritz GmbH | 4th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 331 | #911 460 9089 | Rolf Blind | SCCS Stuttgart | DNA |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 332 | | Claus Kathner-Diercks | Claus Kanthner-Diercks | 10th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 333 | #911 460 9108 | Leo Eigner | SCCS Stuttgart | 6th |
| 20.7.1975 | DARM Hockenheim [T1.6/GT] | 340 | #911 460 9033 | Angelo Pallavicini | Pallvano Corse | 5th |
| 20.7.1975 | Euro GT Hockenheim | 601 | #911 560 9121 | Clemens Schickentanz | Tebernum-Porsche-Racing-Team | 6th |
| 20.7.1975 | Euro GT Hockenheim | 602 | | John Fitzpatrick | Gelo-Racing-Team | 24th |
| 20.7.1975 | Euro GT Hockenheim | 603 | | Toine Hezemans | Gelo-Racing-Team | 2nd |
| 20.7.1975 | Euro GT Hockenheim | 604 | #911 460 9077? | Tim Schenken | Gelo-Racing-Team | 3rd |
| 20.7.1975 | Euro GT Hockenheim | 605 | #911 460 9052 | Claude Haldi | Porsche Club Romand | 1st |
| 20.7.1975 | Euro GT Hockenheim | 606 | | Kenneth Leim | Ream Bla Racing | DNA |
| 20.7.1975 | Euro GT Hockenheim | 607 | #911 460 9067 | Hartwig Bertrams | Tebernum-Porsche-Racing-Team | 4th |
| 20.7.1975 | Euro GT Hockenheim | 608 | #911 460 9058 | William Vollery | Ecurie du Nord | 16th |
| 20.7.1975 | Euro GT Hockenheim | 609 | #911 230 0827 | Peter Bernhard | FRC | 9th |
| 20.7.1975 | Euro GT Hockenheim | 610 | #911 460 9053 | Edi Kofel | Mascotte-Racing-Team | DQ |
| 20.7.1975 | Euro GT Hockenheim | 611 | #004 0002 | John Rulon-Miller | Gante Racing | 14th |
| 20.7.1975 | Euro GT Hockenheim | 613 | #911 460 9051 | Claude Ballot-Léna | Ecurie Buchet Paris | DNA |
| 20.7.1975 | Euro GT Hockenheim | 621 | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 8th |
| 20.7.1975 | Euro GT Hockenheim | 622 | #911 460 9078 | Eberhard Sindel | Rallyegemeinschaft Ulm | 7th |
| 20.7.1975 | Euro GT Hockenheim | 624 | #911 460 9036 | Nicolas Koob | Nicolas Koob | DNA |
| 20.7.1975 | Euro GT Hockenheim | 625 | | Peter Bienefeld | Peter Bienefeld | 5th |
| 20.7.1975 | Euro GT Hockenheim | 626 | #911 460 9064 | Helmut Bez | SCCS | 13th |
| 20.7.1975 | Euro GT Hockenheim | 627 | #911 360 0898 | Fritz Müller | Vereinigung Süddeutscher Automobilsportler E. V. | 17th |
| 20.7.1975 | Euro GT Hockenheim | 628 | | Ralf-Dieter Schreiber | Ralf-Dieter Schreiber | 15th |
| 20.7.1975 | Euro GT Hockenheim | 629 | #911 460 9018 | Klaus Utz | Autohaus Max Moritz GmbH | 11th |
| 20.7.1975 | Euro GT Hockenheim | 641 | | Luigi Barano | Luigi Barano | DNA |
| 20.7.1975 | DRM Diepholz | | | Jürgen Berg | Jürgen Berg | 12th |
| 20.7.1975 | DRM Diepholz | | #005 0005 | Helmut Kelleners | Jägermeister Kremer Team | 3rd |
| 20.7.1975 | DRM Diepholz | | #911 230 0908 | Georg Freiberger | Georg Freiberger | 10th |
| 20.7.1975 | DRM Diepholz | | #911 360 0636 | Jürgen Lässig | Autohaus Max-Moritz-GmbH | 6th |
| 20.7.1975 | DRM Diepholz | | #911 460 9095 | Richard Leder | Richard Leder | 4th |
| 20.7.1975 | DRM Diepholz | | #005 0004 | Cees Siewertsen | Lucky Star Wally's Jeans Kremer Team | 8th |
| 20.7.1975 | DRM Diepholz | | | Jürgen Kannacher | Porsche-Kannacher | 7th |
| 20.7.1975 | Diepholz [GT] | | #911 460 9062 | Günther Chrzanowski | Günter Chrzanowski | 2nd |
| 20.7.1975 | Diepholz [GT] | | | Richard Leder | Richard Leder | 3rd |
| 20.7.1975 | DRM Diepholz | | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | DNF |
| 20.7.1975 | Diepholz [GT] | | #005 0004 | Cees Siewertsen | Lucky Star/Wally's Jeans Kremer Team | 1st |
| 20.7.1975 | Diepholz [GT] | | | Franz Konrad | Franz Konrad | 4th |
| 20.7.1975 | 100 mile Mid America II | | | Roberto Quintanilla | | 4th |
| 20.7.1975 | 100 mile Mid America I | | | Roberto Quintanilla | | 8th |
| 20.7.1975 | Diepholz [GT] | | | Jürgen Berg | Jürgen Berg | 6th |
| 20.7.1975 | Diepholz [GT] | | | Peter Bulian | Peter Bulian | 7th |