| 20.4.1975 | 100 mile Road Atlanta I | 4 | 911 Carrera RSR | Hurley Haywood | | DNA |
| 20.4.1975 | 100 mile Road Atlanta II | 4 | 911 Carrera RSR | Hurley Haywood | | DNA |
| 20.4.1975 | 1000 km Monza | 5 | 908/3 Turbo | Jöst / Casoni | Scuderia Nettuno Ovoro | 2nd |
| 20.4.1975 | 1000 km Monza | 6 | 908/3 | Barth / Kraus | Scuderia Nettuno | 5th |
| 20.4.1975 | 1000 km Monza | 7 | 908/3-6 Turbo | Müller / van Lennep | Dr. H. Dannesberger | DNF |
| 20.4.1975 | 1000 km Monza | 11 | 908/3 Turbo | Gargallo / Llagostera | Ben Heiderich | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 16 | 911 S | Paul Spruell | Paul Spruell | DNA |
| 20.4.1975 | 100 mile Road Atlanta II | 16 | 911 S | Paul Spruell | Paul Spruell | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 34 | 911 S | George Drolsom | George Drolsom | DNA |
| 20.4.1975 | 100 mile Road Atlanta II | 34 | 911 S | George Drolsom | George Drolsom | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 36 | 911 S | Brian Hardacre | | DNS |
| 20.4.1975 | 100 mile Road Atlanta II | 54 | 911 Carrera RSR | John Tunstall | | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 54 | 911 Carrera RSR | John Tunstall | | DNA |
| 20.4.1975 | 1000 km Monza | 73 | 911 Carrera RSR | Schön / Pelit | Jolly Club | DNS |
| 20.4.1975 | 1000 km Monza | 76 | 911 Carrera RSR 3.0 | Heyer / Kelleners | Jägermeister Kremer Racing | DNF |
| 20.4.1975 | 1000 km Monza | 77 | 911 Carrera RSR 3.0 | Hezemans / Schurti / Fitzpatrick | Gelo Racing Team | 6th |
| 20.4.1975 | 1000 km Monza | 78 | 911 Carrera RSR | Fitzpatrick / Hezemans / Schurti | Gelo Racing Team | 7th |
| 20.4.1975 | 1000 km Monza | 81 | 911 Carrera RSR | Schickentanz / Bertrams / Wisell | Tebernum Porsche Racing Team | 9th |
| 20.4.1975 | Coupes USA | | 911 Carrera RSR | Chateau | | 1st |
| 20.4.1975 | Coupes USA | | 911 Carrera | Bourdillat | | 4th |
| 20.4.1975 | Coupes USA | | 911 Carrera RSR | Claude Ballot-Léna | | 2nd |
| 20.4.1975 | Coupes USA | | 911 Carrera RSR | Striebig | | 3rd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 1 | 911 Carrera RSR 3.0 | Claude Haldi | Porsche Club Romand | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 2 | 911 Carrera RSR 3.0 | William Vollery | Porsche Club Romand | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 3 | 911 Carrera RSR 3.0 | Helmut Kelleners | Jägermeister Kremer Team | 6th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 4 | 911 Carrera RSR | Siegmund Ogrodowczyk | Jägermeister Kremer Team | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 5 | 911 Carrera RSR | Reinhardt Stenzel | Foto-Quele Max Moritz Racing Team | 3rd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 6 | 911 Carrera RSR | Jürgen Lässig | Autohaus Max Moritz GmbH | DNS |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 7 | 911 Carrera RSR | Hartwig Bertrams | Tebernum-Porsche Racing-Team | 7th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 8 | 911 Carrera RSR 3.0 | Clemens Schickentanz | Tebernum-Porsche Racing-Team | 2nd |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 9 | 911 Carrera RSR | Franz-Josef Weißkopf | Tebernum-Porsche Racing-Team | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 10 | 911 Carrera RSR | Eberhard Sindel | Rallyegemeinschaft Ulm | 9th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 11 | 911 Carrera RSR | Lothar Wagner | Balafre-Lancome Racing | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 19 | 911 Carrera RSR 3.0 | Josef Brambring | Josef Brambring | 12th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 20 | 911 Carrera RSR | Wolfgang Kauwertz | Wolfgang Kauwertz | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 21 | 911 Carrera RS | Karl-Josef Römer | Karl-Josef Römer | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 22 | 911 Carrera RSR | Anton Stocks | Anton Stocks | DNF |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 23 | 911 Carrera RSR | Jürgen Kannacher | Jürgen Kannacher | 14th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 24 | 911 Carrera RSR | Horst Kloft | Horst Kloft | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 35 | 911 Carrera RSR | Richard Leder | Richard Leder | 11th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 36 | 911 Carrera RSR 3.0 | John Fitzpatrick | GELO-Racing-Team | DNF |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 48 | 914/6 | Dieter Ankele | Autohaus Max Moritz GmbH | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 54 | 914/6 | Edgar Dören | Bergischer Motor Club (BMC) | 15th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 65 | 914/6 | Hans Christian Jürgensen | Hans Christian Jürgensen | DNA |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 72 | 914/6 | Peter Karl Nowak | Peter-Karl Nowak | ?th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 93 | 914/6 | Werner Christmann | Werner Christmann | DNA |
| 28.4.1975 | Knutstorp | 6 | 911 Carrera RSR | Jan Lundgårdh | Team Dinitrol Center Sweden | 3rd |
| 28.4.1975 | Knutstorp [2.0] | 9 | | Sune Ohlsson | | DNA |
| 28.4.1975 | Knutstorp | 16 | 911 Carrera RSR | Kenneth Leim | Team Blå Racing | 5th |
| 28.4.1975 | Knutstorp | 17 | 911 Carrera RSR | Roland Larsson | Team Västkuststugan | 1st |
| 4.5.1975 | 100 mile Laguna Seca I | 1 | 911 Carrera RSR 3.0 | Michael Keyser | | 4th |
| 4.5.1975 | 100 mile Laguna Seca II | 1 | 911 Carrera RSR 3.0 | Michael Keyser | | 2nd |
| 4.5.1975 | 100 mile Laguna Seca I | 5 | 911 Carrera RSR | Bob Harmon | Bob Harmon | 12th |
| 4.5.1975 | 100 mile Laguna Seca II | 5 | 911 Carrera RSR | Bob Harmon | Bob Harmon | 12th |
| 4.5.1975 | 100 mile Laguna Seca II | 8 | 911 S | Jim Cook | | 14th |
| 4.5.1975 | 100 mile Laguna Seca I | 8 | 911 S | Cuffy Crabbe | | 30th |
| 4.5.1975 | 100 mile Laguna Seca I | 9 | 911 Carrera RSR 3.0 | Juan Carlos Bolanos | | 21st |
| 4.5.1975 | 100 mile Laguna Seca II | 13 | 911 Carrera RSR | Randolph Townsend | | 13th |
| 4.5.1975 | 100 mile Laguna Seca I | 13 | 911 Carrera RSR | Randolph Townsend | | 13th |
| 4.5.1975 | 100 mile Laguna Seca I | 14 | 911 Carrera RSR 3.0 | Al Holbert | | 42nd |
| 4.5.1975 | 100 mile Laguna Seca II | 14 | 911 Carrera RSR 3.0 | Al Holbert | | 5th |
| 4.5.1975 | 100 mile Laguna Seca II | 22? | 914/6 | Bill Polich | | 23rd |
| 4.5.1975 | 100 mile Laguna Seca II | 23 | 911 Carrera RSR | Charlie Kemp | Armorall Racing Team | 7th |
| 4.5.1975 | 100 mile Laguna Seca I | 23 | 911 Carrera RSR | Charlie Kemp | Armorall Racing Team | 6th |
| 4.5.1975 | 100 mile Laguna Seca I | 26 | 911 S | Tom Masterson | | 40th |
| 4.5.1975 | 100 mile Laguna Seca I | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 5th |
| 4.5.1975 | 100 mile Laguna Seca II | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 6th |
| 4.5.1975 | 100 mile Laguna Seca I | 39 | 911 S | John Bauer | | 34th |
| 4.5.1975 | 100 mile Laguna Seca II | 41 | 911 S | Charly Godecke | | 26th |
| 4.5.1975 | 100 mile Laguna Seca I | 43 | 911 Carrera RSR | John O'Steen | Ecurie Escargot | 7th |
| 4.5.1975 | 100 mile Laguna Seca II | 43 | 911 Carrera RSR | John Graves | Ecurie Escargot | 19th |
| 4.5.1975 | 100 mile Laguna Seca I | 50 | 911 S | Bill Freeman | | 25th |
| 4.5.1975 | 100 mile Laguna Seca II | 50 | 911 S | Bill Freeman | | 25th |
| 4.5.1975 | 100 mile Laguna Seca II | 51 | 914/6 | Robert Kirby | | 21st |
| 4.5.1975 | 100 mile Laguna Seca I | 51 | 914/6 | John Hotchkis | | 22nd |
| 4.5.1975 | 100 mile Laguna Seca I | 55 | 911 S | Howard Meister | | 29th |
| 4.5.1975 | 100 mile Laguna Seca II | 58 | 911 S | Adrian Gang | | 20th |
| 4.5.1975 | 100 mile Laguna Seca I | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 1st |
| 4.5.1975 | 100 mile Laguna Seca II | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 4th |
| 4.5.1975 | 100 mile Laguna Seca II | 61 | 911 Carrera RSR 3.0 | Jim Busby | | 8th |
| 4.5.1975 | 100 mile Laguna Seca I | 61 | 911 Carrera RSR 3.0 | Jim Busby | | 9th |
| 4.5.1975 | 100 mile Laguna Seca I | 80? | 914/6 | Bill Polich | | 19th |
| 4.5.1975 | 100 mile Laguna Seca II | 81 | 911 Carrera RSR | Elliot Forbes-Robinson | | 3rd |
| 4.5.1975 | 100 mile Laguna Seca I | 81 | 911 Carrera RSR | Elliot Forbes-Robinson | | 3rd |
| 4.5.1975 | 100 mile Laguna Seca II | 95 | 911 Carrera RSR 3.0 | Bob Hagestad | | 24th |
| 4.5.1975 | 100 mile Laguna Seca I | 95 | 911 Carrera RSR 3.0 | Bob Hagestad | | 10th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR | Günther Chrzanowski | Günter Chrzanowski | 3rd |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR 3.0 | Edi Kofel | | 2nd |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Edgar Dören | Bergischer Motorclub e.V. | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR | Eugen Kiemele | Eugen Kiemele | 4th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR | Eberhard Sindel | Rallye Gemeinschaft Ulm | 1st |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Albrecht Schütz | Autohaus Max Moritz GmbH | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Manfred Laub | Autohaus Max Moritz GmbH | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera | Gerhard Holup | Gerhard Holup | 5th |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Alberto Zirkel | Bergischer Motorclub e.V. | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Peter Karl Nowak | Peter-Karl Nowak | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Wilhelm Siegle | Wilhelm Siegle | ?th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR 3.0 | Hans Halfmann | Tebernum-Porsche-Racing-Team | 6th |
| 4.5.1975 | DARM Sembach [GT] | | 911 Carrera RSR | Manfred Borbonus | Manfred Borbonus | 7th |
| 4.5.1975 | DARM Sembach [GT] | | 914/6 | Hans Christian Jürgensen | Hans Christian Jürgensen | ?th |