| 31.8.1975 | DRM Hockenheim Preis der Nationen | 351 | 1300 GTA Junior | Bernd Fischer | Alfa Romeo Hähn | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 352 | 1300 GTA Junior | Michael Bischoff | Touren- und Sportwagen H. H. Stahlberg | DNA |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 353 | 1300 GTA Junior | Peter Seeger | SAC | DNA |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 354 | 1300 GTA Junior | Celeste Lips | Mascotte Racing Team | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 355 | 1300 GTA Junior | Primo Saligari | Ecurie Basilisk | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 356 | 1300 GTA Junior | Rüdi Franz | Formelrennsportclub | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | | 2000 GTAm | Dieter Meyer | Dieter Meyer | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | | 2000 GTAm | Jean-Pierre Rochat | | ?th |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | | 2000 GTAm | Franz Abraham | Franz Abraham | ?th |
| 6.9.1975 | Mainz Hockenheim [GT] | | Giulia Sprint GTA | Harry Schulze | Alfa Romeo Hähn | ?th |
| 7.9.1975 | Interserie Nürburgring Supersprint | 21 | T33/TT/12 | Derek Bell | Willi Kauhsen-Racing-Team | 7th |
| 7.9.1975 | Interserie Nürburgring Supersprint | 22? | T33/TT/12 | Henri Pescarolo | Willi Kauhsen-Racing-Team | 11th |
| 7.9.1975 | Interserie Nürburgring Supersprint | 23 | T33/TT/12 | John Watson | Willi Kauhsen-Racing-Team | 6th |
| 7.9.1975 | NTK Zandvoort | 48 | 1300 GTA Junior | Rob Redeker | | ?th |
| 14.9.1975 | MR CZ Piešťany | 23 | 1300 GTA Junior | Antonín Tvrdý | AMK Kolín | 6th |
| 14.9.1975 | MR CZ Piešťany | 31 | 1300 GTA Junior | Marián Rajnoha | 'Bratislava' | 8th |
| 14.9.1975 | Pergusa [Sports] | | | Virzi | | 9th |
| 14.9.1975 | DARM Ulm [GT2.0] | | GTA | Harry Schulze | Alfa Romeo Hähn | 5th |
| 14.9.1975 | CI Gr.4 Pergusa | | Giulia Sprint GTA | Musumeci | | ?th |
| 14.9.1975 | CI Gr.4 Pergusa | | Giulia Sprint GTA | Centonze | | ?th |
| 14.9.1975 | CI Gr.4 Pergusa | | Giulia Sprint GTA | Vito Coco | | 3rd |
| 28.9.1975 | Interserie Hockenheim | 49 | T33/TT/12 | Hans-Joachim Stuck | Willi Kauhsen Racing Team | DNA |
| 28.9.1975 | Interserie Hockenheim | 50 | T33/TT/12 | Derek Bell | Willi Kauhsen Racing Team | 5th |
| 28.9.1975 | Interserie Hockenheim | 51 | T33/TT/12 | Henri Pescarolo | Willi Kauhsen Racing Team | 4th |
| 28.9.1975 | 6 h Monza | 58 | Giulia Sprint GTA | Palmas / "Il Brizzolato" | Antonio Palmas | 15th |
| 28.9.1975 | 6 h Monza | 59 | Giulia Sprint GTA | Galimberti / Uboldi / Braga | Gaudenzio Uboldi | raced |
| 28.9.1975 | 6 h Monza | 61 | Giulia Sprint GTA | Citterio / Caronni | Camilio Citterio | raced |
| 28.9.1975 | 6 h Monza | 62 | Giulia Sprint GTA | Fusar Bassini / Zorzan | Franco Zorzan | 14th |
| 28.9.1975 | 6 h Monza | 63 | Giulia Sprint GTA | Massa / Bruzzese / D'Angelo | Scuderia Città dei Mille | raced |
| 28.9.1975 | 6 h Monza | 64 | Giulia Sprint GTA | Bruzzese / Faraldi / Lucini | Scuderia Città dei Mille | raced |
| 28.9.1975 | 6 h Monza | 65 | Giulia Sprint GTA | Martina / Zini | Scuderia Città dei Mille | DNA |
| 28.9.1975 | 6 h Monza | 66 | Giulia Sprint GTA | Confortola / Perego | Scuderia Città dei Mille | raced |
| 28.9.1975 | 6 h Monza | 67 | Giulia Sprint GTA | Balocca / Premoli | Scuderia Città dei Mille | raced |
| 28.9.1975 | 6 h Monza | 68 | Giulia Sprint GTA | Rossi / Rossi | Scuderia Città dei Mille | raced |
| 28.9.1975 | 6 h Monza | 69 | Giulia Sprint GTA | Chiapparini / "Pal Joe" | Scuderia Città dei Mille | 12th |
| 28.9.1975 | 6 h Monza | 71 | Giulia Sprint GTA | Di Rienzo / Murru | Edoardo Di Rienzo | raced |
| 28.9.1975 | Interserie Hockenheim | 72 | T33/TT/12 | Jochen Mass | Willi Kauhsen Racing Team | ?th |
| 28.9.1975 | DRM Hockenheim Preis von Baden | 118 | GTV | Peter Schakow | Peter Schakow | DNA |
| 28.9.1975 | DRM Hockenheim Preis von Baden | 137 | Alfetta GT | Heinz Isert | Heinz Isert | DNA |
| 28.9.1975 | DRM Hockenheim Preis von Baden | 145 | GTA | Harry Schulze | Alfa Romeo Hähn | DNA |
| 28.9.1975 | DRM Hockenheim Preis von Baden | 148 | 1300 GTA Junior | Bernd Fischer | Alfa Romeo Hähn | 12th |
| 28.9.1975 | DRM Hockenheim Preis von Baden | 152 | 1300 GTA Junior | Rudolf Welter | Rudolf Welter | DNA |
| 5.10.1975 | NTK Zandvoort | 48 | 1300 GTA Junior | Rob Redeker | | ?th |
| 5.10.1975 | NTK Zandvoort | 54 | 1300 GTA Junior | Hennie van der Vliet | | ?th |
| 17.10.1975 | Giro d'Italia | 101 | GT | Casella / Victor | Casella | DNA |
| 17.10.1975 | Giro d'Italia | 110 | GTV | Minella / Casubolo | Rododendri | 23rd |
| 17.10.1975 | Giro d'Italia | 111 | GTV | Bigliazzi / Sovani | Piloti Senesi | 14th |
| 17.10.1975 | Giro d'Italia | 112 | GTV | Baldacci / Rol | Jolly Club | 16th |
| 17.10.1975 | Giro d'Italia | 114 | 2000 GTV | Litrico | Autodelta | DNA |
| 17.10.1975 | Giro d'Italia | 221 | 2000 GTV | Cambiaghi / Grandi | Jolly Club | 12th |
| 17.10.1975 | Giro d'Italia | 222 | 2000 GTV | Ghislotti / Galimberti | Città dei Mille | 10th |
| 17.10.1975 | Giro d'Italia | 223 | Alfetta GT | | Autodelta | DNA |
| 17.10.1975 | Giro d'Italia | 224 | Alfetta GT | Spartaco Dini | Autodelta | DNA |
| 17.10.1975 | Giro d'Italia | 226 | 2000 GTAm | Pozzo / Pusceddu | Nord Ovest | raced |
| 17.10.1975 | Giro d'Italia | 227 | GT | Giorato / Piccolomini | Patavium | 21st |
| 17.10.1975 | Giro d'Italia | 228 | 2000 GTAm | Sacchini / Ciuti | Piloti Senesi | DNA |
| 17.10.1975 | Giro d'Italia | 230 | 1600 GT Junior | Santulli / Mercatelli | Santulli | DNA |
| 17.10.1975 | Giro d'Italia | 231 | 1300 GT Junior | Gualtieri / Tacchini | Gualtieri | 19th |
| 17.10.1975 | Giro d'Italia | 233 | 2000 GTV | Fornera / Camathias | Città dei Mille | raced |
| 17.10.1975 | Giro d'Italia | 474 | Giulia Sprint GTA | Bisio / Paroli | Bisio | DNA |
| 17.10.1975 | Giro d'Italia | 475 | Giulia Sprint GTA | Colaprete / Franco | Torino Corse | 28th |
| 17.10.1975 | Giro d'Italia | 478 | Giulia Sprint GTA | Premoli / Chiapparini | Città dei Mille | 25th |
| 17.10.1975 | Giro d'Italia | 518 | T33/3 Coupe | Andruet / Cartotto | Autodelta | DNF |
| 26.10.1975 | Vallelunga [GT] | | Giulia Sprint GTA | | | ?th |
| 26.10.1975 | Vallelunga [GT] | | Giulia Sprint GTA | | | ?th |
| 1.11.1975 | 1000 km Kyalami | 5 | Alfetta GT | Merzario / Dini | Alfa Romeo/Telefunken | DNF |
| 1.11.1975 | 1000 km Kyalami | 11 | 2000 GTV | Chatz / van der Merwe | Alfa Romeo/Telefunken | DNF |
| 1.11.1975 | 1000 km Kyalami | 12 | 2000 GTV | Ellis / van Noord / Chatz | J. Lauryssen | 7th |
| 1.11.1975 | 1000 km Kyalami | 28 | Alfetta GT | Keizan / Scheckter | Alfa Romeo/Telefunken | DNF |
| 1.11.1975 | 1000 km Kyalami | 29 | Alfetta Berlina | Radicella / Grano | Alfa Romeo/Telefunken | 13th |
| 1.11.1975 | 1000 km Kyalami | 30 | Alfetta Berlina | Klomfass / Hettema | Alfa Romeo/Telefunken | 10th |
| 1.11.1975 | 1000 km Kyalami | 36 | Giulia Super | Spamer / Lamprecht | Team Castrol | raced |
| 9.11.1975 | Rheintal Hockenheim [GT] | | GTA | Harry Schulze | Alfa Romeo-Hähn | ?th |
| 30.11.1975 | Australian SCC Phillip Island | 33 | T33 | Fred Gibson | | 3rd |
| 30.11.1975 | Hockenheim Finale [Race N] | | 1300 GTA Junior | Bernd Fischer | Alfa Romeo Hähn | 5th |