RANK

BOXER

WEIGHT CLASS

YEARS

1

Muhammad Ali

Heavyweight

1960–1981

2

Sugar Ray Robinson

Welterweight / Middleweight

1940–1965

3

Joe Louis

Heavyweight

1934–1951

4

Henry Armstrong

Featherweight / Lightweight / Welterweight

1931–1945

5

Willie Pep

Featherweight

1940–1966

6

Sonny Liston

Heavyweight

1953–1970

7

Benny Leonard

Lightweight

1911–1932

8

Rocky Marciano

Heavyweight

1947–1955

9

Jack Dempsey

Heavyweight

1914–1927

10

Sugar Ray Leonard

Welterweight / Middleweight

1977–1997

11

Roberto Duran

Lightweight / Welterweight / Middleweight

1968–2001

12

Jack Johnson

Heavyweight

1897–1938

13

Sam Langford

Middleweight / Heavyweight

1902–1926

14

Harry Greb

Middleweight

1913–1926

15

Joe Gans

Lightweight

1893–1909

16

Floyd Mayweather Jr.

Super Featherweight / Lightweight / Welterweight

1996–2017

17

Jimmy Wilde

Flyweight

1911–1923

18

Joe Frazier

Heavyweight

1965–1981

19

Mickey Walker

Welterweight / Middleweight

1919–1935

20

Lennox Lewis

Heavyweight

1989–2003

21

Archie Moore

Light Heavyweight

1935–1963

22

George Foreman

Heavyweight

1969–1997

23

Evander Holyfield

Heavyweight

1984–2011

24

Mike Tyson

Heavyweight

1985–2005

25

Michael Spinks

Light Heavyweight

1977–1988

26

Joe Calzaghe

Super Middleweight

1993–2008

27

Stanley Ketchel

Middleweight

1903–1910

28

Roy Jones Jr.

Light Heavyweight / Middleweight

1989–2018

29

Manny Pacquiao

Flyweight / Lightweight / Welterweight

1995–2021

30

Oscar De La Hoya

Lightweight / Welterweight

1992–2008

31

Larry Holmes

Heavyweight

1973–2002

32

Gene Tunney

Heavyweight

1915–1930

33

Julio Cesar Chavez

Lightweight / Light Welterweight

1980–2005

34

Pernell Whitaker

Lightweight / Welterweight

1984–2001

35

Ezzard Charles

Heavyweight

1940–1959

36

Bernard Hopkins

Middleweight / Light Heavyweight

1988–2016