| 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 | DRM Norisring | 6 | | Clemens Schickentanz | Tebernum Porsche Racing Team | DNS |
| 29.6.1975 | Euro GT Norisring | 6 | | Clemens Schickentanz | Tebernum Porsche | raced |
| 29.6.1975 | Norisring Trophäe | 6 | | Clemens Schickentanz | Tebernum Porsche Racing Team | 16th |
| 29.6.1975 | Norisring Trophäe | 8 | #911 560 9121 | Reine Wisell | Tebernum Porsche Racing Team | 8th |
| 29.6.1975 | Euro GT Norisring | 8 | #911 560 9121 | Reine Wisell | Tebernum Porsche | raced |
| 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 | 19 | | Richard Leder | Richard Leder | DNF |
| 29.6.1975 | Euro GT Norisring | 19 | #911 460 9095 | Richard Leder | Richard Leder | 7th |
| 29.6.1975 | Norisring Trophäe | 19 | | Richard Leder | Richard Leder | 7th |
| 29.6.1975 | Norisring Trophäe | 32 | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 3rd |
| 29.6.1975 | Norisring Trophäe | 39 | #911 360 0636 | Jürgen Lässig | Autohaus Max Moritz GmbH | 9th |
| 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 | 1000 km Zeltweg | | | | | DNA |
| 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 | 23 | #911 360 0727 | Charlie Kemp | Armor-All | 5th |
| 4.7.1975 | 250 mile Daytona Paul Revere | 43 | #911 560 9112 | John Graves | Ecurie Escargot | 8th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 360 0921 | Edgar Kaib | Edgar Kaib | 7th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | | Hubert Striebig | Hubert Striebig | 6th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 4th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 360 0760 | Hubert Schmidt | Autohaus Max Moritz | 8th |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | | Anton Stocks | AMC Duisburg | 3rd |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 460 9069 | Edy Brandenberger | Edy Brandenberger | 2nd |
| 6.7.1975 | Karlsruhe Hockenheim [GT] | | #911 560 9117 | Hans Heyer | Vaillant Kremer Team | 1st |
| 12.7.1975 | 6 h Watkins Glen | 74 | #911 560 9123 | Heimrath / Bartling | Heimrath Racing | 8th |
| 13.7.1975 | Sweden Falkenberg | | | Jan Lundgårdh | | 3rd |
| 13.7.1975 | Sweden Falkenberg | | | Roland Larsson | | 2nd |
| 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 II | 8 | #911 460 0035 | Bob Beasley | Bob Beasley | DNA |
| 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 | 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 | 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 | 49 | | Berruto / Gellini | | 12th |
| 20.7.1975 | Targa Florio | 55 | #006 0002 | "Tambauto" / Radicella | | 4th |
| 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 | 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 | Euro GT Hockenheim | 601 | #911 560 9121 | Clemens Schickentanz | Tebernum-Porsche-Racing-Team | 6th |
| 20.7.1975 | Euro GT Hockenheim | 604 | #911 460 9077? | Tim Schenken | Gelo-Racing-Team | 3rd |
| 20.7.1975 | Euro GT Hockenheim | 606 | | Kenneth Leim | Ream Bla Racing | DNA |
| 20.7.1975 | Euro GT Hockenheim | 609 | #911 230 0827 | Peter Bernhard | FRC | 9th |
| 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 | 625 | | Peter Bienefeld | Peter Bienefeld | 5th |
| 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 | 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 | Diepholz [GT] | | | Franz Konrad | Franz Konrad | 4th |
| 20.7.1975 | DRM Diepholz | | #911 360 1045 | Jan Lundgårdh | | DNF |
| 20.7.1975 | 100 mile Mid America II | | | Roberto Quintanilla | | 4th |
| 20.7.1975 | DRM Diepholz | | #911 460 9062 | Günther Chrzanowski | Günter Chrzanowski | DNF |
| 20.7.1975 | DRM Diepholz | | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | DNF |
| 20.7.1975 | 100 mile Mid America I | | | Roberto Quintanilla | | 8th |
| 20.7.1975 | DRM Diepholz | | | Anton Stocks | AMC Duisburg | DNF |
| 20.7.1975 | Diepholz [GT] | | | Richard Leder | Richard Leder | 3rd |
| 20.7.1975 | DRM Diepholz | | #911 230 0908 | Georg Freiberger | Georg Freiberger | 10th |
| 27.7.1975 | Wunstorf [GT+2.0] | | | Franz Konrad | Scuderia Teutonia | 2nd |
| 27.7.1975 | Wunstorf [GT+2.0] | | | Harald Reimann | Harald Reimann | 8th |
| 27.7.1975 | Wunstorf [GT+2.0] | | | Richard Leder | Richard Leder | 3rd |
| 3.8.1975 | DRM Nürburgring GP | 9 | #911 460 9073 | Eckhard Schimpf | | 14th |
| 3.8.1975 | DRM Nürburgring GP | 137 | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 3rd |
| 3.8.1975 | DRM Nürburgring GP | 141 | #911 360 0636 | Jürgen Lässig | Autohaus Max-Moritz-GmbH | DNS |
| 3.8.1975 | DRM Nürburgring GP | 153 | #911 560 9117 | Bob Wollek | Kremer Team | 6th |
| 3.8.1975 | Euro GT Misano | | | Arturo Merzario | | 4th |
| 3.8.1975 | DRM Nürburgring GP | | #911 230 0908 | Georg Freiberger | | 15th |
| 3.8.1975 | Euro GT Misano | | | "Tambauto" | | 8th |
| 3.8.1975 | Euro GT Misano | | #911 460 9077? | Tim Schenken | Gelo Racing Team Georg Loos | 1st |
| 3.8.1975 | Euro GT Misano | | #911 560 9121 | Clemens Schickentanz | Tebernum Porsche | 7th |
| 9.8.1975 | 1 h Talladega | 6 | | Hurley Haywood | | 3rd |
| 9.8.1975 | 1 h Talladega | 23 | #911 360 0727 | Charlie Kemp | Armorall Racing Team | 9th |
| 9.8.1975 | 1 h Talladega | 43 | #911 560 9112 | John O'Steen | | 8th |
| 10.8.1975 | ETCC Zandvoort | 1 | #911 560 9117 | van Lennep / Wollek | Porsche Kremer Racing | 2nd |
| 10.8.1975 | ETCC Zandvoort | 4 | | de Giaxa de Salvi / van Kempen | Tebernum Racing Team | DNF |
| 17.8.1975 | MEZ MR CZ Most | 21 | | Willy Rabl | | 1st |
| 17.8.1975 | DRM Kassel-Calden | 53 | #911 460 9060 | Reinhardt Stenzel | Team Foto Quele Max Moritz Racing | DNF |
| 17.8.1975 | DRM Kassel-Calden | 57 | #911 560 9117 | Bob Wollek | Vaillant Kremer Team | 2nd |
| 17.8.1975 | DRM Kassel-Calden | 64 | #911 560 9121 | Clemens Schickentanz | Tebernum Porsche Racing Team | 4th |
| 17.8.1975 | DRM Kassel-Calden | 67 | | Anton Stocks | AMC Duisburg 1950 e. V. Im DMW | DNA |
| 17.8.1975 | DRM Kassel-Calden | 68 | | Jürgen Kannacher | Porsche Kannacher | DNA |
| 17.8.1975 | DRM Kassel-Calden | 70 | #911 460 9078 | Eberhard Sindel | Renngemeinschaft Ulm | DNF |
| 17.8.1975 | DRM Kassel-Calden | 77 | | Franz Konrad | RG Scuderia Teutoia e. V. im ADAC | DNA |