Thomas Hearns (born 1958) was one of the hardest punchers pound for pound in boxing history and won world titles in a record-tying five weight divisions.

Career Highlights

• Professional record: 61 wins, 48 by KO, 5 losses, 1 draw
• World champion at welterweight, junior middleweight, middleweight, super middleweight, and light heavyweight
• First-round KO of Roberto Duran in 1984

Style

Hearns had an unusually long reach for his weight and a right hand that finished opponents at every weight class. His 1985 war with Marvin Hagler lasted only 8 minutes but is considered one of boxing's greatest rounds.

Reference:

Wikipedia: Thomas Hearns

https://en.wikipedia.org/wiki/Thomas_Hearns