| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | 911 Carrera RSR | Richard Leder | Richard Leder | 6th |
| 13.4.1975 | DARM Hockenheim [GT+2.0/T+2.0] | | 911 Carrera RSR 3.0 | Josef Brambring | Josef Brambring | 5th |
| 20.4.1975 | 100 mile Road Atlanta I | 1 | 911 Carrera RSR 3.0 | Michael Keyser | Toad Hall Racing | 5th |
| 20.4.1975 | 100 mile Road Atlanta II | 1 | 911 Carrera RSR 3.0 | Michael Keyser | Toad Hall Racing | 3rd |
| 20.4.1975 | 100 mile Road Atlanta II | 4 | 911 Carrera RSR | Hurley Haywood | | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 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 | 100 mile Road Atlanta II | 6 | 911 Carrera RSR | Hurley Haywood | | 2nd |
| 20.4.1975 | 100 mile Road Atlanta I | 6 | 911 Carrera RSR | Hurley Haywood | | 3rd |
| 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 | 100 mile Road Atlanta I | 9 | 911 Carrera RSR 3.0 | Juan Carlos Bolanos | | 9th |
| 20.4.1975 | 100 mile Road Atlanta II | 9 | 911 Carrera RSR 3.0 | Juan Carlos Bolanos | | 27th |
| 20.4.1975 | 1000 km Monza | 11 | 908/3 Turbo | Gargallo / Llagostera | Ben Heiderich | DNA |
| 20.4.1975 | 100 mile Road Atlanta I | 14 | 911 Carrera RSR 3.0 | Al Holbert | | 2nd |
| 20.4.1975 | 100 mile Road Atlanta II | 14 | 911 Carrera RSR 3.0 | Al Holbert | | 1st |
| 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 II | 23 | 911 Carrera RSR | Charlie Kemp | Armorall Racing Team | 5th |
| 20.4.1975 | 100 mile Road Atlanta I | 23 | 911 Carrera RSR | Charlie Kemp | Armorall Racing Team | 27th |
| 20.4.1975 | 100 mile Road Atlanta I | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 6th |
| 20.4.1975 | 100 mile Road Atlanta II | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 25th |
| 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 | 36 | 911 S | Brian Hardacre | | 19th |
| 20.4.1975 | 100 mile Road Atlanta I | 43 | 911 Carrera RSR | John O'Steen | | 37th |
| 20.4.1975 | 100 mile Road Atlanta II | 43 | 911 Carrera RSR | John O'Steen | | 6th |
| 20.4.1975 | 100 mile Road Atlanta II | 44 | 911 S | Albert Naon | | 17th |
| 20.4.1975 | 100 mile Road Atlanta I | 44 | 911 S | Tony Garcia | | 16th |
| 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 | 100 mile Road Atlanta I | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 1st |
| 20.4.1975 | 100 mile Road Atlanta II | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 4th |
| 20.4.1975 | 100 mile Road Atlanta II | 60 | 911 S | John Belperche | | 15th |
| 20.4.1975 | 100 mile Road Atlanta I | 60 | 911 S | Rusty Bond | | 17th |
| 20.4.1975 | NTK Zandvoort | 64 | 911 Carrera RSR 3.0 | Cees Siewertsen | Wallys Jeans | DNF |
| 20.4.1975 | 100 mile Road Atlanta I | 67 | 911 Carrera S | Dave White | | DQ |
| 20.4.1975 | 100 mile Road Atlanta II | 67 | 911 Carrera S | Dave White | | DQ |
| 20.4.1975 | 1000 km Monza | 72 | 911 Carrera RSR 3.0 | Capra / Lepri | Girolama Capra | DNQ |
| 20.4.1975 | 1000 km Monza | 73 | 911 Carrera RSR | Schön / Pelit | Jolly Club | DNS |
| 20.4.1975 | 1000 km Monza | 74 | 911 Carrera RSR 3.0 | Haldi / Béguin | Porsche Club Romand | DNF |
| 20.4.1975 | 1000 km Monza | 75 | 911 Carrera RSR | Berruto / Fossati | Scuderia Brescia Corse | DNQ |
| 20.4.1975 | 100 mile Road Atlanta I | 76 | 911 Carrera RSR | Norm Ridgely | | 11th |
| 20.4.1975 | 100 mile Road Atlanta II | 76 | 911 Carrera RSR | Norm Ridgely | | 10th |
| 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 | 79 | 911 Carrera RSR 3.0 | Wisell / Schickentanz / Bertrams | Tebernum Porsche Racing Team | DNF |
| 20.4.1975 | 1000 km Monza | 81 | 911 Carrera RSR | Schickentanz / Bertrams / Wisell | Tebernum Porsche Racing Team | 9th |
| 20.4.1975 | 1000 km Monza | 82 | 911 Carrera RSR 3.0 | Vollery / Dorchy | Ecurie du Nord | DNQ |
| 20.4.1975 | 1000 km Monza | 83 | 911 Carrera RSR 3.0 | Bonomelli / Rulon-Miller | Gante Racing | DNQ |
| 20.4.1975 | 100 mile Road Atlanta II | 85 | 914/6 | Hulen | | 22nd |
| 20.4.1975 | 1000 km Monza | 85 | 911 Carrera RSR | Gabriele Serblin | Gabriele Serblin | DNQ |
| 20.4.1975 | 100 mile Road Atlanta I | 85 | 914/6 | Coupland | | 21st |
| 20.4.1975 | 100 mile Road Atlanta II | 89 | 911 S | Don Parish | Barrick Motor Racing | 14th |
| 20.4.1975 | 100 mile Road Atlanta I | 89 | 911 S | Dave Causey | | 15th |
| 20.4.1975 | 100 mile Road Atlanta II | 95 | 911 Carrera RSR 3.0 | Bob Hagestad | Bob Hagestad | 7th |
| 20.4.1975 | 100 mile Road Atlanta I | 95 | 911 Carrera RSR 3.0 | Bob Hagestad | Bob Hagestad | 7th |
| 20.4.1975 | Coupes USA | | 911 Carrera RSR | Claude Ballot-Léna | | 2nd |
| 20.4.1975 | Coupes USA | | 911 Carrera | Bourdillat | | 4th |
| 20.4.1975 | Coupes USA | | 911 Carrera RSR | Chateau | | 1st |
| 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 I | 5 | 911 Carrera RSR | Bob Harmon | Bob Harmon | 12th |
| 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 | 30 | 911 Carrera RSR 3.0 | George Dyer | George Dyer | 5th |
| 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 I | 59 | 911 Carrera RSR 3.0 | Peter Gregg | | 1st |
| 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 | 81 | 911 Carrera RSR | Elliot Forbes-Robinson | | 3rd |
| 4.5.1975 | 100 mile Laguna Seca I | 95 | 911 Carrera RSR 3.0 | Bob Hagestad | | 10th |