Pedzisa mutsara unotevera:
1986 World Judo Championships, Guy akahwina menduru yebronze mumutambo wepasi pe61kg. Ndiye oga muNew Zealander akakunda menduru paWorld Judo Championships. Mugore rimwe chetero, Guy akauya wechipiri pachiitiko chekuratidzira judo pa1986 Commonwealth Games muEdinburgh, Scotland, achirasikirwa mumutambo wekupedzisira kuna Diane Bell. Guy akakwikwidzawo nokuda kweNew Zealand pa 1988 Summer Olympics muSeoul, South Korea. Mumitambo yeCommonwealth ya1990 muAuckland, New Zealand, Guy-Halkyard akauya wechipiri mumutambo wepasi pemakirogiramu 61, achirasikirwa neBritish Diane Bell mumutambo wekupedzisira.