There really should be no surprise here to see Gerardo González, better known as Kid Gavilan, at the top spot of this list.
Kid Gavilan spend the first three years of his career fighting out of Cuba before taking it to the United States.
He built a record of 53-6-2 before challenging Sugar Ray Robinson the World Welterweight Championship. He came up short in his initial bid in dropping a unanimous decision to Robinson.
After Robinson moved up in weight Gavilan would take on eventually take on Johnny Bratton for the National Boxing Association welterweight title. He not only handed Bratton a loss but broke his jaw while doing so.
Kid Gavilan wasn't just known for his famous "bolo punch" as he gained much fame with a win over Billy Graham in 1951.
A move up to the middleweight division proved to be the beginning of the end of a storied career as he lost a close decision against Middleweight Champion "Bobo" Olson.
He moved back down to the welterweight division where he put his title on the line against Johnny Saxton. Saxton won a decision.
He won 108 bouts and despite his 30 losses, no one was ever able to knock Kid Gavilan out.