 On 30 June 1991 McKenzie became a world champion for a second time, winning the WBO bantamweight title with a 12-round decision over Gaby Canizales.This was lost to Rafael Del Valle on 13 May 1992 when McKenzie suffered his first knockout loss, in the first round.On 15 October 1992 McKenzie became a three-weight world champion, beating Jesse Benavides after twelve rounds for the WBO Super Bantamweight title.