1982
DRM Deutsche Rennsport-Meisterschaft
2nd
1982
24 Hours of Daytona
1st
1980
24 Hours of Daytona
1st
1979
World Championship for Makes Watkins Glen 6 Hours
2nd
1978
World Championship for Makes Watkins Glen 6 Hours
2nd
1978
24 Hours of Daytona
1st
1977
DRM Deutsche Rennsport-Meisterschaft
1st
1977
ADAC 1000 Kilometres Rennen Nürburgring
1st
1977
World Championship for Makes Mugello 6 Hours
1st
1977
Kosset World Manufacturers 6 Hours Silverstone
3rd
1976
World Championship for Makes 6 Hours of Watkins Glen
1st
1976
World Championship for Sports Cars Coppa Florio
1st
1976
44th Grand Prix of Endurance 24 Hours of Le Mans Group 5 SP
1st
1976
World Championship for Makes ACF 6 Hours Dijon
3rd
1974
World Championship for Makes ADAC 1000 km Rennen Nürburgring
2nd
1974
World Championship for Makes 1000 km Monza
2nd
1974
World Championship for Makes 1000 km Imola
2nd
1972
World Championship for Makes - BOAC Brands Hatch 1000 Kilometres
3rd
1971
International Championship for Makes 12 Hours of Sebring
2nd
1971
International Championship for Makes 1000km of Buenos Aires
3rd
1970
XXXIII Internationales ADAC-Eifelrennen
3rd
1970
I Mantorp Park Formula 2 Trophy
2nd
1968
24 Hours of Daytona
1st
1968
36th Grand Prix of Endurance 24 Hours of Le Mans Class P 3.0
2nd
1967
35th Grand Prix of Endurance 24 Hours of Le Mans Class P 2.0
2nd
1966
34th Grand Prix of Endurance 24 Hours of Le Mans Class S 2.0
1st