 Aimbova mumhedziso yeEnglish Amateur Championship neWorld Amateur Championship, Johnson akazova nyanzvi muna 1979, uye mushure memakore akati wandei semutambi asina kuverengerwa, akasvika kumagumo e1983 Professional Players Tournament, kwaakarasikirwa ne 8-9 kuna Tony Knowles. Muna 1986, semunhu akaderera zvikuru, akakunda Steve Davis 1812 kuti akunde 1986 World Snooker Championship. Gore rakatevera, akasvika kumagumo zvakare, achirasikirwa ne1418 kuna Davis; semhedzisiro yekusvika padyo nekuputsa kutuka kweCrucible kupfuura chero mumwe mutambi. 