 Nyorai kupfuurira kweiyi ndima - Williamson akava mutambi ane unyanzvi muna 1982 asi haana kutongosvika kumaquarter-fainari emutambo mukuru. Akasvika kumakwikwi gumi nemasere ekupedzisira eGran Prix ya1984 snookeruko akarova 5-2 naKnowles. 