Tuhia he tomokanga mō tēnei wāhanga - I te tau 1952, ko Kavanagh te Ahitereiria tuatahi i toa i tētahi whakataetae motopaika Grand Prix i a ia e wikitōria ana i te 350cc Ulster Grand Prix. I te tau 1956, i wikitoria ia i te Junior TT i te Isle of Man TT. I uru atu a Kavanagh ki nga Whakataetae Nui e rua o te Formula Kotahi i te 1958 me tana Maserati 250F, i te tuatahi i Monaco i kore ai ia e tohu, i te mutunga o te Belgian Grand Prix
I ngaro ia i te whakataetae i muri i tana pupuhi i tana miihini i te whakangungu, i muri i tana tohu i te 20 o nga kaitono 28.