| 15.6.1975 | MR CZ Ostrava | 13 | | Dušan Velímský | ARC Zetor Brno | 3rd |
| 15.6.1975 | 4 h Salzburgring | 25 | #911 460 9078 | Sindel / Dören | Rallye-Gemeinschaft Ulm | 2nd |
| 15.6.1975 | 4 h Salzburgring | 26 | | Schmid / Habermann | Hans Habermann | DNA |
| 15.6.1975 | DRM Mainz-Finthen | 56 | #911 460 9060 | Reinhardt Stenzel | Team Foto-Quele Max Moritz-Racing | 1st |
| 15.6.1975 | DRM Mainz-Finthen | 59 | #911 460 9067 | Hartwig Bertrams | Tebernum Porsche Racing Team | DNF |
| 15.6.1975 | 24 h Le Mans | 64 | | Heyer / Wisell / Kremer | Porsche Kremer | DNA |
| 15.6.1975 | 24 h Le Mans | 66 | | Aeschlimann / Cayeux | Racing Team Schulthess | DNA |
| 15.6.1975 | 24 h Le Mans | 76 | | Méo / Thiry | Gérard Méo | DNA |
| 15.6.1975 | 24 h Le Mans | 79 | | | Lucien Nageotte | DNA |
| 15.6.1975 | 24 h Le Mans | 81 | | | Porsche Club Romand | DNA |
| 15.6.1975 | 24 h Le Mans | 82 | | Bordier / Bourdillat | Promo Racing Service | DNA |
| 15.6.1975 | 24 h Le Mans | 85 | | Davin / Roux | Jean-Louis Davin | DNA |
| 15.6.1975 | DRM Mainz-Finthen | 85 | #911 460 9073 | Eckhard Schimpf | Jägermeister-Racing-Team | 9th |
| 15.6.1975 | 24 h Le Mans | 86 | | Guidoux / Lamigeon / Chantalat | Didier Lamigeon | DNA |
| 15.6.1975 | DRM Mainz-Finthen | | | Franz Konrad | Scuderia Teutonia | DNF |
| 15.6.1975 | DRM Mainz-Finthen | | | Anton Stocks | AMC Duisburg | 7th |
| 15.6.1975 | DRM Mainz-Finthen | | #911 460 9108 | Leo Eigner | Sports Car Club of Stuttgart | 10th |
| 15.6.1975 | DRM Mainz-Finthen | | #911 460 9095 | Richard Leder | Richard Leder | 8th |
| 15.6.1975 | DRM Mainz-Finthen | | #911 460 9062 | Günther Chrzanowski | Günter Chrzanowski | 6th |
| 15.6.1975 | DRM Mainz-Finthen | | | Harald Reimann | | DNF |
| 15.6.1975 | Trans-Am Portland | | | John Bauer | John Bauer | 8th |
| 15.6.1975 | Hügelheim Hockenheim [GT] | | #911 230 0818 | Hans Forster | Hans Forster | 3rd |
| 15.6.1975 | DRM Mainz-Finthen | | #911 360 0636 | Jürgen Lässig | Autohaus Max Moritz GmbH | DNF |
| 15.6.1975 | DRM Mainz-Finthen | | | Hans-Peter Ziegler | | DNF |
| 15.6.1975 | DRM Mainz-Finthen | | #911 460 9089 | Rolf Blind | | DNF |
| 15.6.1975 | DRM Mainz-Finthen | | #005 0005 | Helmut Kelleners | Jägermeister Kremer Team | 2nd |
| 22.6.1975 | NTK Zandvoort | 89 | | Rob Slotemaker | Tebernum Racing Team | 2nd |
| 22.6.1975 | Avus | | | Ralf-Dieter Schreiber | | 9th |
| 22.6.1975 | Avus | | #911 360 0898 | Fritz Müller | VSA | 10th |
| 22.6.1975 | DARM Avus [GT+2.0/T+2.0] | | #911 360 0898 | Fritz Müller | VSA | ?th |
| 22.6.1975 | Avus | | | Jürgen Berg | | 14th |
| 22.6.1975 | Avus | | | Johannes Fehrens | | 13th |
| 22.6.1975 | DARM Avus [GT+2.0/T+2.0] | | | Richard Leder | Richard Leder | ?th |
| 22.6.1975 | DARM Avus [GT+2.0/T+2.0] | | | Jan Lundgardh | | ?th |
| 22.6.1975 | DARM Avus [GT+2.0/T+2.0] | | #911 360 0921 | Edgar Kaib | Edgar Kaib | ?th |
| 22.6.1975 | Avus | | | Gerhard Holup | | 6th |
| 22.6.1975 | Avus | | | Jan Lundgardh | | 4th |
| 22.6.1975 | Avus | | #911 460 9078 | Eberhard Sindel | | 5th |
| 22.6.1975 | Avus | | | Richard Leder | Richard Leder | 3rd |
| 29.6.1975 | Euro GT Norisring | 1 | #911 460 9040 | John Fitzpatrick | Gelo Racing Team Georg Loos | 1st |
| 29.6.1975 | Norisring Trophäe | 1 | #911 460 9040 | John Fitzpatrick | Gelo Racing Team Georg Loos | 2nd |
| 29.6.1975 | Euro GT Norisring | 2 | | Toine Hezemans | Gelo Racing Team Georg Loos | 2nd |
| 29.6.1975 | Norisring Trophäe | 2 | | Toine Hezemans | Gelo Racing Team Georg Loos | 1st |
| 29.6.1975 | Norisring Trophäe | 3 | #911 460 9077? | Tim Schenken | Gelo Racing Team Georg Loos | 18th |
| 29.6.1975 | Euro GT Norisring | 3 | #911 460 9077? | Tim Schenken | Gelo Racing Team Georg Loos | 3rd |
| 29.6.1975 | Euro GT Norisring | 4 | #911 560 9117 | Hans Heyer | Vaillant Kremer Team | 5th |
| 29.6.1975 | Norisring Trophäe | 4 | #911 560 9117 | Hans Heyer | Vaillant Kremer Team | 17th |
| 29.6.1975 | Euro GT Norisring | 5 | #005 0004 | Cees Siewertsen | Erwin Kremer | 6th |
| 29.6.1975 | DRM Norisring | 6 | | Clemens Schickentanz | Tebernum Porsche Racing Team | DNS |
| 29.6.1975 | Norisring Trophäe | 6 | | Clemens Schickentanz | Tebernum Porsche Racing Team | 16th |
| 29.6.1975 | Euro GT Norisring | 6 | | Clemens Schickentanz | Tebernum Porsche | raced |
| 29.6.1975 | DRM Norisring | 7 | #911 460 9067 | Hartwig Bertrams | Tebernum Porsche Racing Team | DNS |
| 29.6.1975 | Euro GT Norisring | 7 | #911 460 9067 | Hartwig Bertrams | Tebernum Porsche | DNF |
| 29.6.1975 | Euro GT Norisring | 8 | #911 560 9121 | Reine Wisell | Tebernum Porsche | raced |
| 29.6.1975 | DRM Norisring | 8 | #911 560 9121 | Reine Wisell | Tebernum Porsche Racing Team | 5th |
| 29.6.1975 | Norisring Trophäe | 8 | #911 560 9121 | Reine Wisell | Tebernum Porsche Racing Team | 8th |
| 29.6.1975 | Norisring Trophäe | 9 | #911 460 9052 | Claude Haldi | Porsche Club Romand | 5th |
| 29.6.1975 | DRM Norisring | 9 | #911 460 9052 | Claude Haldi | Porsche Club Romand | DNS |
| 29.6.1975 | Euro GT Norisring | 9 | #911 460 9052 | Claude Haldi | Porsche Club Romand | 4th |
| 29.6.1975 | Euro GT Norisring | 11 | #911 460 9051 | Claude Ballot-Léna | Ecurie Robert Buchet | DNA |
| 29.6.1975 | Euro GT Norisring | 12 | #911 360 1088 | Cyril Grandet | Ecurie Robert Buchet | DNA |
| 29.6.1975 | Euro GT Norisring | 14 | | Jürgen Neuhaus | Josef Brambring | DNA |
| 29.6.1975 | Norisring Trophäe | 15 | #911 360 1045 | Bengt Ekberg | Team Västkuststugan Porsche Kubero | 10th |
| 29.6.1975 | Euro GT Norisring | 15 | #911 360 1045 | Bengt Ekberg | Team Västkuststugan Porsche Kubero | 8th |
| 29.6.1975 | Euro GT Norisring | 16 | | Kenneth Leim | Team Bla Racing | raced |
| 29.6.1975 | Euro GT Norisring | 17 | | Volker Bruchhof | Harald Reimann | DNA |
| 29.6.1975 | Norisring Trophäe | 18 | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 11th |
| 29.6.1975 | Euro GT Norisring | 18 | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | raced |
| 29.6.1975 | DRM Norisring | 18 | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 8th |
| 29.6.1975 | Norisring Trophäe | 19 | | Richard Leder | Richard Leder | 7th |
| 29.6.1975 | Euro GT Norisring | 19 | #911 460 9095 | Richard Leder | Richard Leder | 7th |
| 29.6.1975 | DRM Norisring | 19 | | Richard Leder | Richard Leder | DNF |
| 29.6.1975 | DRM Norisring | 32 | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 2nd |
| 29.6.1975 | Norisring Trophäe | 32 | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 3rd |
| 29.6.1975 | 1000 km Zeltweg | 35 | #911 360 1549 | Doppler / Felbermayr | Porsche Club Oberoesterreich | 12th |
| 29.6.1975 | Norisring Trophäe | 35 | #005 0005 | Helmut Kelleners | Jägermeister Kremer Team | 4th |
| 29.6.1975 | DRM Norisring | 35 | #005 0005 | Helmut Kelleners | Jägermeister Kremer Team | T-car |
| 29.6.1975 | DRM Norisring | 35T | | Helmut Kelleners | Vaillant Kremer Team | 3rd |
| 29.6.1975 | Norisring Trophäe | 39 | #911 360 0636 | Jürgen Lässig | Autohaus Max Moritz GmbH | 9th |
| 29.6.1975 | DRM Norisring | 39 | #911 360 0636 | Jürgen Lässig | Autohaus Max Moritz GmbH | 7th |
| 29.6.1975 | DRM Norisring | 41 | | Josef Brambring | Josef Brambring | DNA |
| 29.6.1975 | DRM Norisring | 43 | | Heinz-Jörgen Dahmen | Porsche Kannacher | DNA |
| 29.6.1975 | DRM Norisring | 44 | | Jürgen Kannacher | Porsche Kannacher | DNA |
| 29.6.1975 | DRM Norisring | 45 | | Anton Stocks | AMC Duisburg | DNA |
| 29.6.1975 | Düren/Nordheim Zolder | | #911 460 9078 | Eberhard Sindel | Eberhard Sindel | 3rd |
| 29.6.1975 | 1000 km Zeltweg | | | | | DNA |
| 29.6.1975 | Düren/Nordheim Zolder | | #911 460 9023 | Dieter Schornstein | Dieter Schornstein | ?th |
| 29.6.1975 | Düren/Nordheim Zolder | | | Ralf-Dieter Schreiber | Ralf-Dieter Schreiber | ?th |
| 29.6.1975 | Düren/Nordheim Zolder | | #911 230 0908 | Georg Freiberger | Georg Freiberger | 4th |
| 29.6.1975 | Düren/Nordheim Zolder | | #911 460 9062 | Günther Chrzanowski | Günther Chrzanowski | 1st |
| 29.6.1975 | Düren/Nordheim Zolder | | | Franz Konrad | Franz Konrad | 2nd |
| 29.6.1975 | Düren/Nordheim Zolder | | | Claus Kathner-Diercks | Claus Kathner-Diercks | ?th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 6 | | Hurley Haywood | G. W. Dickinson | 2nd |
| 4.7.1975 | 250 mile Daytona Paul Revere | 8 | #911 460 0035 | Beasley / Stone | Bob Beasley | 6th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 14 | #005 0009 | Al Holbert | Holbert's Porsche | 3rd |
| 4.7.1975 | 250 mile Daytona Paul Revere | 23 | #911 360 0727 | Charlie Kemp | Armor-All | 5th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 30 | #911 460 9048 | George Dyer | George Dyer | 4th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 43 | #911 560 9112 | John Graves | Ecurie Escargot | 8th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 59 | | Peter Gregg | Brumos Porsche | 37th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 61 | #911 560 9122 | Jim Busby | Beverly Porsche/Audi | 7th |