 Nyora kupfuurira kweiyi ndima - Aive musimboti wechiitiko chevakadzi veAmerica vanovhiringidza muma1970. Akakunda mikombe miviri yenyika, achiisa rekodhi yemakwikwi yemasekondi 57.3 muna 1975 uye akadzokera kumusoro muna 1978. Akaita zvitatu zvepamusoro munyika yose muna 1976, 1977 uye 1979. Kukudzwa kwake bedzi kwenyika yose kwakanga kuri menduru yendarira pa 1979 IAAF World Cuprakaitirwa muMontreal. 