Czyz went on to stop then-undefeated Andrew Maynard in seven rounds (the second undefeated Gold medallist he KO'd) in June 1990, then jumped up to cruiserweight. He challenged Robert Daniels for Daniels' WBA world cruiserweight championship in March 1991, and won a unanimous decision. Two defenses, against Bash Ali and Donny Lalonde, were made (both by unanimous decision) before Czyz vacated the title.
Czyz went on to stop then-undefeated Andrew Maynard in seven rounds (the second undefeated Gold medallist he KO'd) in June 1990 then jumped up to cruiserweight. He challenged Robert Daniels for Daniels' WBA world cruiserweight championship in March 1991, and won a ,unanimous decision. Two defenses, against Bash Ali and D,onny Lalonde were made (both by unanimous decision) before Czyz vacated the title.