Boxing in the 1950s beaten by Pérez), won Japan's first world title, and Hogan Bassey won the first belt for Nigeria. Popular American fighters in the 1950s proved legendary: Sugar Ray Robinson would still win (and lose) world titles, Rocky Marciano became the only heavyweight world champion in history to retire with perfect record. Jersey Joe Walcott the oldest heavyweight champion (until George Foreman regained the title in 1994), Archie Moore broke the all-time knockout record as well as the record for the oldest champion, at 48, for "any" division, Ezzard Charles proved to be a reliable substitute for Joe Louis as heavyweight champ,
Boxing at the 2011 Pan American Games – Super heavyweight Boxing at the 2011 Pan American Games – Super heavyweight The men's super heavyweight competition of the boxing events at the 2011 Pan American Games in Guadalajara, Mexico, was held between October 24 and 29 at the Expo Guadalajara Arena. The defending champion was Robert Alfonso from Cuba. Super heavyweights were limited to those boxers weighing higher than or equal to 91 kilograms. This weight category is the heaviest out of the ten boxing events. Like all Pan American boxing events, the competition was a straight single-elimination tournament. Both semifinal losers were awarded bronze medals, so no boxers competed again