 Whitbread akanga awana menduru yesirivha paWorld Championships yokutangamuna 1983. Akanga anozivikanwawo nokuda kwokukwikwidzana kwake neBritish javelin thrower Tessa Sanderson, uyo akakunda menduru yegoridhe pa 1984 Summer Olympics muLos Angeles naWhitbread kupedzisa mune menduru yendarira. Mumitambo yeOlympic ya1988 muSeoul, Whitbread akahwina menduru yesirivha shure kwaPetra Felke, uyo akanga aputsa rekodhi yenyika munguva pfupi. 