Mezue ahịrịokwu a:
1986 World Judo Championships, Guy meriri ọla nchara na ihe omume n'okpuru 61kg. Ọ bụ naanị onye New Zealand meriri nrite n'asọmpi World Judo. N'otu afọ ahụ, Guy bịara nke abụọ na ihe ngosi ngosi judo na 1986 Commonwealth Games na Edinburgh, Scotland, na-efunahụ Diane Bell na njedebe. Guy sokwa zọọ asọmpi maka New Zealand n'egwuregwu Olimpik nke afọ 1988 na Seoul, South Korea. Na 1990 Commonwealth Games na Auckland, New Zealand, Guy-Halkyard bịara nke abụọ na ihe omume n'okpuru 61kg, na-efunahụ Briten Diane Bell na njedebe.