Born on May 23, 1954, Marvelous Marvin Hagler was a renowned American professional boxer and film actor, whose illustrious career spanned from 1973 to 1987. During his reign as the undisputed champion of the middleweight division, from 1980 to 1987, Hagler successfully defended his title an impressive twelve times, with all but one of those defenses ending in knockout victories.
Notably, Hagler holds the highest knockout percentage of all undisputed middleweight champions, boasting an impressive 78% record. Moreover, his undisputed middleweight championship reign of six years and seven months is the second-longest active reign of the last century, and he also holds the record for the sixth longest reign as champion in middleweight history.
Throughout his career, Hagler was affectionately nicknamed "Marvelous," but he reportedly grew frustrated when network announcers failed to refer to him by this moniker. In response, Hagler legally changed his name to "Marvelous Marvin Hagler" in 1982, a testament to his dedication to his professional persona.
