Pedzisa mutsara unotevera: Pedersoli akadzokera kuItaly muna 1949 kunotamba polo yemvura muRoma kuSocietà Sportiva Lazio Nuoto uye akakunda makwikwi eItaly ekushambira mumakwikwi e freestyle nemapoka evarume nevakadzi. Semunhu aichimboshambira achiri muduku, Spencer ndiye aiva muItaly wokutanga kushambira 100 m freestyle isingasviki miniti imwe apo musi wa19 September 1950 akahwina daro racho mumasekonzi 59.5 muSalsomaggiore. Muna 1949 akaita kutanga kwake munyika yose uye gore rimwe gare gare akadanwa nokuda kwe
European Championships muVienna kwaakashambira mumakwikwi maviri ekupedzisira, achipedza wechishanu mumamita zana uye wechina mu4 × 200 m relay.