| 13.4.1975 | Euro GT Imola | 28 | | Kenneth Leim | Team Bla Racing | 7th |
| 13.4.1975 | Euro GT Imola | 49 | | Toine Hezemans | Gelo Racing Team Georg Loos | raced |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | 54? | #005 0004 | Cees Siewertsen | Kremer-Team | 4th |
| 13.4.1975 | Interserie Hockenheim | 54 | #005 0004 | Cees Siewertsen | Porsche Kremer Racing | DNA |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | | Gerhard Holup | Gerhard Holup | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | | Richard Leder | Richard Leder | 6th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | | Josef Brambring | Josef Brambring | 5th |
| 13.4.1975 | Euro GT Imola | | | Serge Godard | | 6th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #911 460 9060 | Reinhardt Stenzel | Team Foto-Quelle Max Moritz-Racing | 2nd |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #005 0005 | Helmut Kelleners | Jägermeister Kremer-Team | 3rd |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #911 230 0818 | Hans Forster | Hans Forster | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #911 460 9064 | Helmut Bez | Sports Car Club of Stuttgart | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | | Ralf-Dieter Schreiber | Ralf Dieter Schreiber | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #911 360 0760 | Hubert Schmidt | MSC Calw | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | | Franz Konrad | Franz Konrad | ?th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | #004 0005 | Hans Halfmann | Tebernum-Porsche-Racing-Team | ?th |
| 20.4.1975 | 100 mile Road Atlanta I | 1 | #911 460 9049 | Michael Keyser | Toad Hall Racing | 5th |
| 20.4.1975 | 100 mile Road Atlanta II | 1 | #911 460 9049 | Michael Keyser | Toad Hall Racing | 3rd |
| 20.4.1975 | 100 mile Road Atlanta II | 4 | | Hurley Haywood | | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 4 | | Hurley Haywood | | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 6 | | Hurley Haywood | | 3rd |
| 20.4.1975 | 100 mile Road Atlanta II | 6 | | Hurley Haywood | | 2nd |
| 20.4.1975 | 100 mile Road Atlanta II | 9 | #911 360 0610 | Juan Carlos Bolanos | | 27th |
| 20.4.1975 | 100 mile Road Atlanta I | 9 | #911 360 0610 | Juan Carlos Bolanos | | 9th |
| 20.4.1975 | 100 mile Road Atlanta I | 14 | #005 0009 | Al Holbert | | 2nd |
| 20.4.1975 | 100 mile Road Atlanta II | 14 | #005 0009 | Al Holbert | | 1st |
| 20.4.1975 | 100 mile Road Atlanta I | 23 | #911 360 0727 | Charlie Kemp | Armorall Racing Team | 27th |
| 20.4.1975 | 100 mile Road Atlanta II | 23 | #911 360 0727 | Charlie Kemp | Armorall Racing Team | 5th |
| 20.4.1975 | 100 mile Road Atlanta II | 30 | #911 460 9048 | George Dyer | George Dyer | 25th |
| 20.4.1975 | 100 mile Road Atlanta I | 30 | #911 460 9048 | George Dyer | George Dyer | 6th |
| 20.4.1975 | 100 mile Road Atlanta I | 43 | #911 560 9112 | John O'Steen | | 37th |
| 20.4.1975 | 100 mile Road Atlanta II | 43 | #911 560 9112 | John O'Steen | | 6th |
| 20.4.1975 | 100 mile Road Atlanta I | 54 | #911 460 0100 | John Tunstall | | DNA |
| 20.4.1975 | 100 mile Road Atlanta II | 54 | #911 460 0100 | John Tunstall | | DNA |
| 20.4.1975 | 100 mile Road Atlanta II | 59 | | Peter Gregg | | 4th |
| 20.4.1975 | 100 mile Road Atlanta I | 59 | | Peter Gregg | | 1st |
| 20.4.1975 | NTK Zandvoort | 64 | #005 0004 | Cees Siewertsen | Wallys Jeans | DNF |
| 20.4.1975 | 100 mile Road Atlanta II | 67 | #911 360 0701 | Dave White | | DQ |
| 20.4.1975 | 100 mile Road Atlanta I | 67 | #911 360 0701 | Dave White | | DQ |
| 20.4.1975 | 1000 km Monza | 72 | #911 460 9110 | Capra / Lepri | Girolama Capra | DNQ |
| 20.4.1975 | 1000 km Monza | 73 | #911 460 9074 | Schön / Pelit | Jolly Club | DNS |
| 20.4.1975 | 1000 km Monza | 74 | #911 460 9052 | Haldi / Béguin | Porsche Club Romand | DNF |
| 20.4.1975 | 1000 km Monza | 75 | | Berruto / Fossati | Scuderia Brescia Corse | DNQ |
| 20.4.1975 | 100 mile Road Atlanta I | 76 | | Norm Ridgely | | 11th |
| 20.4.1975 | 1000 km Monza | 76 | #005 0005 | Heyer / Kelleners | Jägermeister Kremer Racing | DNF |
| 20.4.1975 | 100 mile Road Atlanta II | 76 | | Norm Ridgely | | 10th |
| 20.4.1975 | 1000 km Monza | 77 | #911 460 9040 | Hezemans / Schurti / Fitzpatrick | Gelo Racing Team | 6th |
| 20.4.1975 | 1000 km Monza | 78 | #911 460 9077 | Fitzpatrick / Hezemans / Schurti | Gelo Racing Team | 7th |
| 20.4.1975 | 1000 km Monza | 79 | #911 460 9067 | Wisell / Schickentanz / Bertrams | Tebernum Porsche Racing Team | DNF |
| 20.4.1975 | 1000 km Monza | 81 | #911 560 9121 | Schickentanz / Bertrams / Wisell | Tebernum Porsche Racing Team | 9th |
| 20.4.1975 | 1000 km Monza | 82 | #911 460 9058 | Vollery / Dorchy | Ecurie du Nord | DNQ |
| 20.4.1975 | 1000 km Monza | 83 | #004 0010 | Bonomelli / Rulon-Miller | Gante Racing | DNQ |
| 20.4.1975 | 1000 km Monza | 85 | | Gabriele Serblin | Gabriele Serblin | DNQ |
| 20.4.1975 | 100 mile Road Atlanta I | 95 | #911 460 9057 | Bob Hagestad | Bob Hagestad | 7th |
| 20.4.1975 | 100 mile Road Atlanta II | 95 | #911 460 9057 | Bob Hagestad | Bob Hagestad | 7th |
| 20.4.1975 | Coupes USA | | | Striebig | | 3rd |
| 20.4.1975 | Coupes USA | | | Claude Ballot-Léna | | 2nd |
| 20.4.1975 | Coupes USA | | | Chateau | | 1st |
| 20.4.1975 | Coupes USA | | | Bourdillat | | 4th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 1 | #911 460 9052 | Claude Haldi | Porsche Club Romand | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 2 | #911 460 9058 | William Vollery | Porsche Club Romand | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 3 | #005 0005 | Helmut Kelleners | Jägermeister Kremer Team | 6th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 4 | | Siegmund Ogrodowczyk | Jägermeister Kremer Team | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 5 | #911 460 9060 | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 3rd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 6 | #911 360 0636 | Jürgen Lässig | Autohaus Max Moritz GmbH | DNS |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 7 | #911 560 9121 | Hartwig Bertrams | Tebernum-Porsche Racing-Team | 7th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 8 | #911 460 9067 | Clemens Schickentanz | Tebernum-Porsche Racing-Team | 2nd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 9 | | Franz-Josef Weißkopf | Tebernum-Porsche Racing-Team | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 10 | #911 460 9078 | Eberhard Sindel | Rallyegemeinschaft Ulm | 9th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 11 | | Lothar Wagner | Balafre-Lancome Racing | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 19 | | Josef Brambring | Josef Brambring | 12th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 20 | | Wolfgang Kauwertz | Wolfgang Kauwertz | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 21 | #911 360 0909 | Karl-Josef Römer | Karl-Josef Römer | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 22 | | Anton Stocks | Anton Stocks | DNF |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 23 | | Jürgen Kannacher | Jürgen Kannacher | 14th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 24 | | Horst Kloft | Horst Kloft | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 35 | #911 460 9095 | Richard Leder | Richard Leder | 11th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 36 | | John Fitzpatrick | GELO-Racing-Team | DNF |
| 28.4.1975 | Knutstorp | 6 | | Jan Lundgardh | Team Dinitrol Center Sweden | 3rd |
| 28.4.1975 | Knutstorp | 16 | | Kenneth Leim | Team Blå Racing | 5th |
| 28.4.1975 | Knutstorp | 17 | | Roland Larsson | Team Västkuststugan | 1st |
| 4.5.1975 | 1000 km Spa | 40 | #911 560 9121 | Bertrams / Wisell | Tebernum Racing | 8th |
| 4.5.1975 | 1000 km Spa | 41 | #911 460 9067 | Schickentanz / Bertrams / Wisell | Tebernum Racing | 6th |
| 4.5.1975 | 1000 km Spa | 42 | #911 460 9052 | Haldi / Béguin | Club Romand | 4th |
| 4.5.1975 | 1000 km Spa | 43 | #911 460 9051 | Ballot-Léna / Andruet | Ecurie Buchet | 5th |
| 4.5.1975 | 1000 km Spa | 44 | #911 460 9040 | Fitzpatrick / Schurti / Schenken | Gelo Racing | 11th |
| 4.5.1975 | 1000 km Spa | 45 | #911 460 9077 | Hezemans / Schenken / Fitzpatrick | Gelo Racing | 9th |
| 4.5.1975 | 1000 km Spa | 46 | #911 360 1045 | Ekberg / Simonsen | Vaeskustugan | DNF |
| 4.5.1975 | 1000 km Spa | 47 | #911 460 9033 | Vanoli / Pallavicini | Pallvano Corse | DNA |
| 4.5.1975 | 1000 km Spa | 48 | #911 360 0885 | Hubert Striebig | Striebig | DNA |
| 4.5.1975 | 1000 km Spa | 50 | | Chateau / Cayeux | Chateau | DNS |
| 4.5.1975 | 1000 km Spa | 52 | #004 0004 | Corthay / Morand | Ecurie Rolloise | DNF |
| 4.5.1975 | DARM Sembach [GT] | | #004 0005 | Hans Halfmann | Tebernum-Porsche-Racing-Team | 6th |
| 4.5.1975 | DARM Sembach [GT] | | #911 460 9078 | Eberhard Sindel | Rallye Gemeinschaft Ulm | 1st |
| 4.5.1975 | DARM Sembach [GT] | | #911 460 9053 | Edi Kofel | | 2nd |
| 4.5.1975 | DARM Sembach [GT] | | #911 460 9068 | Eugen Kiemele | Eugen Kiemele | 4th |
| 4.5.1975 | DARM Sembach [GT] | | | Gerhard Holup | Gerhard Holup | 5th |
| 4.5.1975 | DARM Sembach [GT] | | #911 460 9062 | Günther Chrzanowski | Günter Chrzanowski | 3rd |
| 4.5.1975 | DARM Sembach [GT] | | | Manfred Borbonus | Manfred Borbonus | 7th |