1939
XIII Gran Premio di Tripoli
2nd
1939
AIACR European Championship
3rd
1939
ADAC Eifelrennen Nürburgring - GP class
3rd
1938
XII Gran Premio di Tripoli
3rd
1938
AIACR European Championship
1st
1938
Acerbo Cup, Pescara
1st
1937
AIACR European Championship
1st
1937
III Donington Grand Prix
3rd
1937
ADAC Eifelrennen Nürburgring - GP class
2nd
1936
VIII Grand Prix de Monaco
1st
1935
X° Gran Premio de España
1st
1935
IX Grand Premio di Tripoli
1st
1935
AIACR European Championship
1st
1935
ADAC Eifelrennen Nürburgring - GP class
1st
1934
IX° Gran Premio de España
2nd
1934
XII Gran Premio d'Italia
1st
1932
X Gran Premio d'Italia. Autodromo di Monza 5 June
3rd
1932
IV Grand Prix de Monaco
2nd
1932
XVIII Grand Prix de L'Automobile Club de France, Reims, 3 July
3rd
1932
AIACR European Championship
3rd
1932
ADAC Eifelrennen Nürburgring - GP class
1st
1932
VI Grosser Preis von Deutschland, Nürburgring, 17 July. Group I
1st
1931
Mille Miglia Italy
1st
1931
ADAC Eifelrennen Nürburgring - GP class
1st
1929
I Grand Prix de Monaco
3rd
1928
III Grosser Preis von Deutschland, Nürburgring 15 July
1st
1927
ADAC Eifelrennen Nürburgring - GP class
1st
1926
I Grosser Preis von Deutschland, AVUS 11July
1st