Greatest Knockout Boxers of All-Time Statistics

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Greatest Knockout Fighter Statistics
Fighter Win-Loss-Draws Knockouts KO% Years Active
Rocky Marciano 49-0-0 43 88% 1947-55
Mike Tyson 50-6-0 (1 No Contest) 44 76% 1985-2005*
Archie Moore 185-23-0 131 88% 1935-1965
George Forman 76-5-0 68 84% 1969-77, 1987-97
Jack Dempsey 61-6-9 50 84% 1914-27
Roberto Duran 103-16-0 70 66% 1968-2001
"Sugar" Ray Robinson 173-19-6 109 69% 1951-1965
Julio Cesar Chavez 107-6-2 86 68% 1980-2005
Wladimir Klitschko 43-2-0 40 89% 1996-2011
‘Marvelous’ Marvin Hagler 62-3-2 52 78% 1973-87
Manny Pacquiao 57-6-2 26 66% 1995-2015
Floyd Mayweather Jr. 48-0-0 26 54% 1996-2015
*not accounting for time spent in prison, religious hiatus, and suspension
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Statistic Sources & References
Sources: World Boxing Association
Content Author: Statistic Brain

Date research was conducted: March 1, 2017

Greatest Knockout Boxers of All-Time Statistics

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