For example, Trevor Berbick beat Shane Sutcliffe for the Canadian Heavyweight Title when he was 46/47, after wrestling it from him a year or so beforehand.
Oliver McCall. Definitely not a great fighter. But still a solid, strong, durable, hard-punching journeyman in his 40s as he was in his 20s.
Chuvalo's rematch with Ali was his final defeat. He remained Canadian Heavyweight Champion until Berbick was ready to succeed him. Lyle came out of retirement in his mid 50s with a string of four knockouts in 1995. Mike Weaver was in his early 40s when he decisioned Bert Cooper, over 15 years his junior.
