- Muhammad Ali is the greatest heavyweight boxer of all time.
- Roberto Duran, Marvin Hagler, Sugar Ray Leonard, and Thomas Hearns are the 4 Kings of Boxing.
- Rocky Marciano and Oleksandr Usyk are the heavyweight boxers with no losses.
Boxing odds are more exciting when heavyweight boxers compete, and fans check if the fighters they follow are favourites or underdogs at BetMGM’s sportsbook.
But who is the greatest heavyweight boxer of all time? Who were tagged as the four kings of boxing, and who are the undefeated heavyweight boxers? Find out below.
Who Is the Greatest Heavyweight Boxer of All Time?
Muhammad Ali is the greatest heavyweight boxer of all time. He excelled in the ring, winning and defending the heavyweight title multiple times, and used his influence to fight social issues during his era.
Ali finished his professional boxing career with 56 wins, 37 via TKO/KOs, and only five losses.
Who Are the 4 Kings of Boxing?
The 4 Kings of Boxing were Roberto Duran, Marvin Hagler, Sugar Ray Leonard, and Thomas Hearns, who all dominated the 1980s with their rivalries.
During this period, they competed against each other and delivered all-time classic battles that left an indelible mark on the sport’s history.
Who Is the Heavyweight Boxer With No Losses?
Rocky Marciano and Oleksandr Usyk are the two heavyweight boxers with no losses.
Marciano finished his professional career a perfect 49-0, while Usyk is still an active champion today. He hasn’t tasted defeat in his professional career and has swept all 23 fights.
