Mezue ahịrịokwu na-esonụ: N'afọ 1952, Kavanagh ghọrọ onye Australia mbụ meriri n'ọsọ moto Grand Prix mgbe o meriri 350cc Ulster Grand Prix. N'afọ 1956, ọ meriri Junior TT na Isle of Man TT agbụrụ. Kavanagh banyere na Formula One Grand Prix abụọ na 1958 na Maserati 250F nke ya, nke mbụ na Monaco ebe ọ dara iru eru, na nke ikpeazụ na
Belgian Grand Prix ebe ọ hapụrụ asọmpi ahụ mgbe ọ gbagburu injin ya na omume, mgbe ọ tozuru oke nke iri abụọ n'ime ndị asọmpi iri abụọ na asatọ.