| 23.3.1975 | 1000 km Mugello | 44 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Schurti / Hezemans / Fitzpatrick | Gelo Racing Team | 9th |
| 30.3.1975 | Nürburgring [GT/T] | | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | GELO-Racing-Team | 14th |
| 31.3.1975 | Nürburgring Goodyear Pokal | | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | GELO-Racing-Team | 5th |
| 6.4.1975 | 800 km Dijon | 33 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Fitzpatrick / Hezemans | Gelo Racing Team | 5th |
| 13.4.1975 | Euro GT Imola | 48 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | DQ |
| 20.4.1975 | 1000 km Monza | 77 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Hezemans / Schurti / Fitzpatrick | Gelo Racing Team | 6th |
| 27.4.1975 | DRM Nürburgring Eifelrennen | 36 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | GELO-Racing-Team | DNF |
| 4.5.1975 | 1000 km Spa | 44 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Fitzpatrick / Schurti / Schenken | Gelo Racing | 11th |
| 18.5.1975 | Coppa Florio | | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Hezemans / Fitzpatrick | Gelo Racing Team | DNA |
| 25.5.1975 | Euro GT Zeltweg | 1 | Porsche 911 Carrera RSR 3.0 #911 460 9040? | John Fitzpatrick | Gelo Racing Team | 8th |
| 15.6.1975 | 24 h Le Mans | 60 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | Schurti / Hezemans | Gelo Racing Team | DNF |
| 29.6.1975 | Norisring Trophäe | 1 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | John Fitzpatrick | Gelo Racing Team Georg Loos | 2nd |
| 29.6.1975 | Euro GT Norisring | 1 | Porsche 911 Carrera RSR 3.0 #911 460 9040 | John Fitzpatrick | Gelo Racing Team Georg Loos | 1st |
| 20.7.1975 | Euro GT Hockenheim | 602 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo-Racing-Team | 24th |
| 3.8.1975 | Euro GT Misano | | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | 2nd |
| 17.8.1975 | DRM Kassel-Calden | 60 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | DNF |
| 31.8.1975 | DRM Hockenheim Preis der Nationen | 18 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | 2nd |
| 7.9.1975 | Supersprint Nürburgring | 2 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | GELO-Racing-Team Georg Loos KG | 3rd |
| 28.9.1975 | 6 h Monza | 15 | Porsche 911 Carrera RSR 3.0 | Fitzpatrick / Schurti | Gelo Racing Team | DNF |
| 2.11.1975 | 200 km Jarama | 6 | Porsche 911 Carrera RSR 3.0 | John Fitzpatrick | Gelo Racing Team Georg Loos | 3rd |