| 3.8.1975 | DRM Nürburgring GP | 141 | 911 Carrera RSR | Jürgen Lässig | Autohaus Max-Moritz-GmbH | DNS |
| 3.8.1975 | Euro GT Misano | | 911 Carrera RS | Silvano Pittini | | raced |
| 9.8.1975 | 1 h Talladega | 6 | 911 Carrera RSR | Hurley Haywood | | 3rd |
| 9.8.1975 | 1 h Talladega | 14 | 911 Carrera RSR 3.0 | Al Holbert | | 4th |
| 9.8.1975 | 1 h Talladega | 16 | 911 S | Paul Spruell | Paul Spruell | DNA |
| 9.8.1975 | 1 h Talladega | 23 | 911 Carrera RSR | Charlie Kemp | Armorall Racing Team | 9th |
| 9.8.1975 | 1 h Talladega | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 6th |
| 9.8.1975 | 1 h Talladega | 34 | 911 S | George Drolsom | George Drolsom | 22nd |
| 9.8.1975 | 1 h Talladega | 43 | 911 Carrera RSR | John O'Steen | | 8th |
| 9.8.1975 | 1 h Talladega | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 2nd |
| 9.8.1975 | 1 h Talladega | 60 | 911 S | Rusty Bond | | 20th |
| 9.8.1975 | 1 h Talladega | 85 | 914/6 | John Hulen | | 18th |
| 9.8.1975 | 1 h Talladega | 89 | 911 S | Dave Causey | | 19th |
| 10.8.1975 | ETCC Zandvoort | 1 | 911 Carrera RSR | van Lennep / Wollek | Porsche Kremer Racing | 2nd |
| 10.8.1975 | ETCC Zandvoort | 2 | 911 Carrera RSR 3.0 | Siewertsen / Barth | Porsche Kremer Racing | DNF |
| 10.8.1975 | ETCC Zandvoort | 3 | 911 Carrera RSR 3.0 | Schickentanz / Bertrams | Tebernum Racing Team | 3rd |
| 10.8.1975 | ETCC Zandvoort | 4 | 911 Carrera RSR | de Giaxa de Salvi / van Kempen | Tebernum Racing Team | DNF |
| 10.8.1975 | ETCC Zandvoort | 6 | 911 Carrera RSR 3.0 | Hezemans / Schenken | Gelo Racing Team | 1st |
| 10.8.1975 | Coppa Citta di Enna | | 908/3 Turbo | Mario Casoni | | 1st |
| 17.8.1975 | Interserie Kassel-Calden | 0 | 908/3-6 Turbo | Herbert Müller | Dr. H. Dannesberger | 3rd |
| 17.8.1975 | DRM Kassel-Calden | 8 | 914/6 | Dieter Ankele | Autohaus Max Moritz GmbH | 5th |
| 17.8.1975 | MEZ MR CZ Most | 13 | 911 Carrera | Dušan Velímský | AMK Zetor Brno | 5th |
| 17.8.1975 | DRM Kassel-Calden | 16 | 914/6 | Peter Karl Nowak | Peter Karl Nowak | 7th |
| 17.8.1975 | MEZ MR CZ Most | 21 | 911 Carrera RSR | Willy Rabl | | 1st |
| 17.8.1975 | DRM Kassel-Calden | 24 | 914/6 | Ulrich Mönninghoff | Ulrich Mönninghoff | 9th |
| 17.8.1975 | Interserie Kassel-Calden | 47 | 906 Spyder | Karl-Adolf Kneip | | DNS |
| 17.8.1975 | DRM Kassel-Calden | 53 | 911 Carrera RSR | Reinhardt Stenzel | Team Foto Quele Max Moritz Racing | DNF |
| 17.8.1975 | DRM Kassel-Calden | 56 | 911 Carrera RSR 3.0 | Helmut Kelleners | Jägermeister Kremer Team | DNF |
| 17.8.1975 | DRM Kassel-Calden | 57 | 911 Carrera RSR | Bob Wollek | Vaillant Kremer Team | 2nd |
| 17.8.1975 | DRM Kassel-Calden | 58 | 911 Carrera RSR 3.0 | Cees Siewertsen | Lucky Star Wallys Jeans Kremer Team | DNF |
| 17.8.1975 | DRM Kassel-Calden | 59 | 911 Carrera RSR | Tim Schenken | Gelo Racing Team Georg Loos | 3rd |
| 17.8.1975 | DRM Kassel-Calden | 60 | 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | DNF |
| 17.8.1975 | DRM Kassel-Calden | 61 | 911 Carrera RSR 3.0 | Toine Hezemans | Gelo Racing Team Georg Loos | 5th |
| 17.8.1975 | DRM Kassel-Calden | 63 | 911 Carrera RSR | Richard Leder | Richard Leder | 10th |
| 17.8.1975 | DRM Kassel-Calden | 64 | 911 Carrera RSR | Clemens Schickentanz | Tebernum Porsche Racing Team | 4th |
| 17.8.1975 | DRM Kassel-Calden | 65 | 911 Carrera RSR 3.0 | Hartwig Bertrams | Tebernum Porsche Racing Team | 6th |
| 17.8.1975 | DRM Kassel-Calden | 66 | 911 Carrera RSR | Jürgen Lässig | Autohaus Max Moritz GmbH | 7th |
| 17.8.1975 | DRM Kassel-Calden | 67 | 911 Carrera RSR | Anton Stocks | AMC Duisburg 1950 e. V. Im DMW | DNA |
| 17.8.1975 | DRM Kassel-Calden | 68 | 911 Carrera RSR | Jürgen Kannacher | Porsche Kannacher | DNA |
| 17.8.1975 | DRM Kassel-Calden | 69 | 911 Carrera | Horst Kloft | Horst Kloft | DNF |
| 17.8.1975 | DRM Kassel-Calden | 70 | 911 Carrera RSR | Eberhard Sindel | Renngemeinschaft Ulm | DNF |
| 17.8.1975 | DRM Kassel-Calden | 73 | 911 S | Peter Pospieszczyk | Peter Pospieszczyk | 14th |
| 17.8.1975 | DRM Kassel-Calden | 75 | 911 Carrera RSR | Harald Reimann | Harald Reimann | 12th |
| 17.8.1975 | DRM Kassel-Calden | 76 | 911 Carrera RSR 3.0 | Hans Halfmann | Hans Halfmann | 13th |
| 17.8.1975 | DRM Kassel-Calden | 77 | 911 Carrera RSR | Franz Konrad | RG Scuderia Teutoia e. V. im ADAC | DNA |
| 17.8.1975 | Interserie Kassel-Calden | | 917/10 TC | Tim Schenken | | DNS |
| 17.8.1975 | Sweden Kinnekulle | | 911 S | Göran Ahlström | SMK Gävle | ?th |
| 17.8.1975 | Sweden Kinnekulle | | 911 Carrera RSR | Roland Larsson | Falkenbergs MK | 2nd |
| 17.8.1975 | Interserie Kassel-Calden | | 908/3 Turbo | Reinhold Jöst | Joest-Racing | 4th |
| 17.8.1975 | Interserie Kassel-Calden | | 917/10 | Ernst Kraus | Ernst Kraus | 7th |
| 17.8.1975 | Sweden Kinnekulle | | 911 S | Ole Fall | | 11th |
| 17.8.1975 | Interserie Kassel-Calden | | 908/3 | Jürgen Barth | Joest-Racing | 5th |
| 17.8.1975 | Interserie Kassel-Calden | | 908/3 Turbo | Egon Evertz | Egon Evertz KG Schweißtechnik | 19th |
| 17.8.1975 | Interserie Kassel-Calden | | 917 Spyder | Albert Pfuhl | | DNF |
| 23.8.1975 | Zandvoort [GT/T] | 1 | 911 Carrera RSR | Jürgen Kannacher | Porsche-Kannacher-Krefeld | DNA |
| 23.8.1975 | Zandvoort [GT/T] | 2 | 911 Carrera RSR | Heinz-Jörgen Dahmen | Porsche-Kannacher-Krefeld | 1st |
| 23.8.1975 | Zandvoort [GT/T] | 3 | 911 Carrera RS | Gerhard Holup | Gerhard Holup | 3rd |
| 23.8.1975 | Zandvoort [GT/T] | 8 | 911 Carrera RSR | Franz-Josef Weißkopf | Tebernum Racing Team | 4th |
| 23.8.1975 | Zandvoort [GT/T] | 27 | 914/6 | Hans Christian Jürgensen | H.-Christian Jürgensen | ?th |
| 23.8.1975 | Zandvoort [GT/T] | 205 | 911 Carrera RS | Giorgio Arena | Giorgio Arena | DNA |
| 23.8.1975 | Zandvoort [GT/T] | 206 | 911 Carrera RSR | Hubert Schmidt | Autohaus Max Moritz | DNA |
| 23.8.1975 | Zandvoort [GT/T] | 207 | 911 Carrera RSR | Franz Konrad | Scuderia Teutonia e. V. | 2nd |
| 23.8.1975 | Zandvoort [GT/T] | 208 | 911 Carrera RS | Dieter Schornstein | Dieter Schornstein | 6th |
| 23.8.1975 | Zandvoort [GT/T] | 209 | 911 Carrera RS | Peter Bulian | Peter Bulian | DNA |
| 23.8.1975 | Zandvoort [GT/T] | 210 | 911 Carrera RSR 3.0 | Hans Hoffmann | Tebernum Racing Team | 5th |
| 23.8.1975 | Zandvoort [GT/T] | 211 | 911 Carrera RS | Ralf-Dieter Schreiber | R.-Dieter Schreiber | DNA |
| 24.8.1975 | Interserie Zandvoort | 0 | 908/3-6 Turbo | Herbert Müller | Martini-Racing/Team Dr. Dannesberger | 2nd |
| 24.8.1975 | NTK Zandvoort | 1 | 911 Carrera RSR | Jürgen Kannacher | Porsche-Kannacher | ?th |
| 24.8.1975 | NTK Zandvoort | 2 | 911 Carrera RSR | Heinz-Jörgen Dahmen | Porsche-Kannacher | ?th |
| 24.8.1975 | Interserie Zandvoort | 2 | 917/10 | Ernst Kraus | Ernst Kraus | 3rd |
| 24.8.1975 | NTK Zandvoort | 3 | 911 Carrera RS | Gerhard Holup | Gerhard Holup | ?th |
| 24.8.1975 | Interserie Zandvoort | 6 | 917/10 TC | Tim Schenken | Gelo-Racing Loos | 1st |
| 24.8.1975 | NTK Zandvoort | 7 | 911 Carrera RSR 3.0 | Hartwig Bertrams | Tebernum Porsche Racing | 1st |
| 24.8.1975 | NTK Zandvoort | 8 | 911 Carrera RSR | Franz-Josef Weißkopf | Tebernum Racing Team | ?th |
| 24.8.1975 | 6 h Mid-Ohio | 14 | 911 Carrera RSR 3.0 | Holbert / Forbes-Robinson | | 1st |
| 24.8.1975 | DARM Mainz-Finthen [GT2.0/T2.0] | 22 | 914/6 | Wilhelm Siegle | Wilhelm Siegle | ?th |
| 24.8.1975 | NTK Zandvoort | 27 | 914/6 | Hans Christian Jürgensen | H. Christian Jürgensen | DNA |
| 24.8.1975 | 6 h Mid-Ohio | 30 | 911 Carrera RSR | Quintanilla / Gonzalez | | 3rd |
| 24.8.1975 | Interserie Zandvoort | 42 | 908/3 Turbo | Reinhold Jöst | Reinhold Jöst | 5th |
| 24.8.1975 | 6 h Mid-Ohio | 43 | 911 Carrera RSR | O'Steen / Helmick | | 2nd |
| 24.8.1975 | Interserie Zandvoort | 43 | 908/3 | Jürgen Barth | Jürgen Barth | 8th |
| 24.8.1975 | Interserie Zandvoort | 47 | 906 Spyder | | K.-Adolf Kneip | 18th |
| 24.8.1975 | 6 h Mid-Ohio | 59 | 911 Carrera RSR 3.0 | Gregg / Haywood | | 9th |
| 24.8.1975 | 6 h Mid-Ohio | 61 | 911 Carrera RSR 3.0 | Busby / Sprowls / Kirby | | 7th |
| 24.8.1975 | Road America Handicap | 74 | 911 Carrera RSR | Ludwig Heimrath | Heimrath Racing | 3rd |
| 24.8.1975 | 6 h Mid-Ohio | 75 | 911 Carrera RSR | Ridgely / Bartling | | 6th |
| 24.8.1975 | Road America Handicap | 76 | 908/02 | Dennis Aase | Jim Borsos Racing | 2nd |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RS | Rainer Altenheimer | Vergölst-Reifenservice | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera | Heinz Blind | Sports Car Club of Stuttgart | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT2.0/T2.0] | | 914/6 | Albrecht Schütz | Autohaus Max Moritz GmbH | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RS | Claus Kathner-Diercks | Klaus Kathner-Diercks | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RS | Fritz Müller | VSA | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RSR | Eberhard Sindel | Rallye Gemeinschaft Ulm | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RSR | Richard Leder | Richard Leder | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT2.0/T2.0] | | 914/6 | Edgar Dören | Bergischer Motorclub | 3rd |
| 24.8.1975 | DARM Mainz-Finthen [GT2.0/T2.0] | | 914/6 | Manfred Laub | Autohaus Max Moritz GmbH | 2nd |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RS | Klaus Utz | Autohaus Max Moritz GmbH | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera | Uwe Machel | Uwe Machel | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT+2.0/T+2.0] | | 911 Carrera RSR | Hans-Peter Ziegler | Hans-Peter Ziegler | ?th |
| 24.8.1975 | DARM Mainz-Finthen [GT2.0/T2.0] | | 914/6 | Peter Karl Nowak | Peter Nowak | ?th |