Zivic had a record of 157-65-9 but was only ever stopped 4 times...this despite the fact that in some years of his career he was fighting twice a month...one hard mean hombre. His record is a bit of a whos who of 30s - 40s boxing including 10 hall of famers.
genuine,? counting the WBO there must be a few, Marcos Villasana had a few losses before he won the title, think it was his 5th try at it