Wilf Gentzen (born 3 April 1963, in Melbourne) is an Australian professional light welter/welterweight boxer of the 1980s and '90s who won the Victoria (Australia) State welterweight title, Australian welterweight title, Commonwealth welterweight title, and was a challenger for the World Boxing Council (WBC) International light welterweight title against Tony Jones[1], his professional fighting weight varied from 139 lb (63 kg; 9 st 13 lb), i.e.
light welterweight to 146 3/4 lb (66.6 kg; 10 st 6.8 lb), i.e.