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,
Light heavyweight heavyweight division and became undisputed champion of the latter two. Dariusz Michalczewski holds the record for most consecutive title defenses at this division, with 23 defenses of the WBO title. Current champions Below is a list of longest reigning light heavyweight champions in boxing measured by the individual's longest reign. Career total time as champion (for multiple time champions) does not apply. In MMA, the light heavyweight division is from 186 lbs (84 kg) to 205 lb (93 kg). Light heavyweight Light heavyweight, or junior cruiserweight, is a weight class in combat sports. In amateur boxing, light heavyweight is a