Top 20 Heavyweights:
1 Muhammad Ali 56 (37) - 5 (1) - 0
1960-1981 orthodox United States
2 Joe Louis 69 (55) - 3 (2) - 0
1934-1951 orthodox United States
3 Jack Johnson 89 (49) - 14 (7) - 12
1894-1938 orthodox United States
4 Ezzard Charles 90 (51) - 25 (7) - 1
1940-1959 orthodox United States
5 Sam Langford 200 (130) - 47 (9) - 46
1902-1926 orthodox Canada
6 Rocky Marciano 49 (43) - 0 (0) - 0
1947-1955 orthodox United States
7 Harry Wills 79 (49) - 10 (5) - 4
1911-1932 orthodox United States
8 Floyd Patterson 55 (40) - 8 (5) - 1
1952-1972 orthodox United States
9 Jack Sharkey 38 (13) - 14 (4) - 3
1924-1936 orthodox United States
10 Larry Holmes 69 (44) - 6 (1) - 0
1973-2002 orthodox United States
11 Jimmy Bivins 86 (31) - 25 (5) - 1
1940-1955 orthodox United States
12 Evander Holyfield 42 (27) - 9 (2) - 2
1984-2007 orthodox United States
13 Jack Dempsey 66 (51) - 6 (1) - 11
1914-1927 orthodox United States
14 Sam McVea 65 (47) - 15 (5) - 11
1902-1921 orthodox United States
15 Lennox Lewis 41 (32) - 2 (2) - 1
1989-2003 orthodox United Kingdom
16 Mike Tyson 50 (44) - 6 (5) - 0
1985-2005 orthodox United States
17 George Foreman 76 (68) - 5 (1) - 0
1969-1997 orthodox United States
18 Jersey Joe Walcott 51 (32) - 18 (6) - 2
1930-1953 orthodox United States
19 Max Schmeling 56 (40) - 10 (5) - 4
1924-1948 orthodox Germany
20 Sonny Liston 50 (39) - 4 (3) - 0
1953-1970 orthodox United States
Top 20 Light Heavyweights:
1 Gene Tunney 82 (48) - 1 (0) - 3
1915-1928 orthodox United States
2 Archie Moore 185 (131) - 23 (7) - 11
1935-1963 orthodox United States
3 Tommy Loughran 115 (17) - 30 (3) - 12
1919-1937 United States
4 Tommy Gibbons 94 (48) - 5 (1) - 2
1911-1925 orthodox United States
5 Bernard Hopkins 48 (32) - 4 (0) - 1
1988-2007 orthodox United States
6 Roy Jones Jr 51 (38) - 4 (2) - 0
1989-2007 orthodox United States
7 Billy Conn 64 (15) - 12 (3) - 1
1934-1948 orthodox United States
8 Young Stribling 256 (128) - 16 (1) - 15
1921-1933 orthodox United States
9 Battling Levinsky 195 (31) - 54 (4) - 36
1910-1930 orthodox United States
10 Philadelphia Jack O'Brien 134 (54) - 11 (3) - 24
1896-1912 United States
11 Maxie Rosenbloom 221 (19) - 42 (2) - 32
1923-1939 orthodox United States
12 Billy Miske 73 (33) - 16 (1) - 13
1913-1923 orthodox United States
13 Mike McTigue 108 (52) - 46 (11) - 13
1914-1930 orthodox Ireland
14 Paul Berlenbach 42 (35) - 8 (3) - 3
1923-1933 United States
15 Jack Delaney 77 (44) - 13 (4) - 2
1919-1932 orthodox Canada
16 Bob Foster 56 (46) - 8 (6) - 1
1961-1978 orthodox United States
17 Harold Johnson 76 (32) - 10 (4) - 0
1946-1971 orthodox United States
18 Mike Glover 67 (16) - 14 (1) - 13
1908-1916 United States
19 John Henry Lewis 94 (54) - 8 (1) - 5
1931-1939 United States
20 Victor Emilio Galindez 55 (34) - 9 (3) - 4
1969-1980 orthodox Argentina
Top 20 Middleweights:
1 Harry Greb 260 (48) - 21 (2) - 17
1913-1926 orthodox United States
2 Carlos Monzon 87 (59) - 3 (0) - 9
1963-1977 orthodox Argentina
3 Sugar Ray Robinson 173 (108) - 19 (1) - 6
1940-1965 orthodox United States
4 Marvin Hagler 62 (52) - 3 (0) - 2
1973-1987 southpaw United States
5 Jack Dillon 178 (67) - 23 (2) - 30
1908-1923 orthodox United States
6 Dick Tiger 60 (27) - 19 (2) - 3
1952-1970 orthodox Nigeria
7 Mickey Walker 109 (58) - 22 (6) - 5
1919-1935 orthodox United States
8 Tiger Flowers 135 (55) - 16 (10) - 8
1918-1927 southpaw United States
9 Nino Benvenuti 82 (35) - 7 (3) - 1
1961-1971 orthodox Italy
10 Mike Gibbons 110 (38) - 10 (0) - 10
1908-1922 orthodox United States
11 Stanley Ketchel 54 (49) - 4 (2) - 5
1903-1910 United States
12 Mike O'Dowd 85 (33) - 17 (1) - 6
1914-1923 orthodox United States
13 Charley Burley 83 (50) - 12 (0) - 2
1936-1950 orthodox United States
14 Jake LaMotta 83 (30) - 19 (4) - 4
1941-1954 orthodox United States
15 Bryan Downey 82 (24) - 32 (2) - 16
1914-1927 orthodox United States
16 Carl (Bobo) Olson 97 (47) - 16 (7) - 2
1944-1966 orthodox United States
17 Gene Fullmer 55 (24) - 6 (2) - 3
1951-1963 orthodox United States
18 Jeff Smith 110 (35) - 34 (4) - 4
1910-1927 United States
19 Billy Papke 40 (31) - 16 (1) - 7
1906-1919 United States
20 Bert Lytell 71 (24) - 23 (1) - 7
1944-1951 southpaw United States
Top 20 Welterweights:
1 Emile Griffith 85 (23) - 24 (2) - 2
1958-1977 orthodox U.S. Virgin Islands
2 Ted (Kid) Lewis 228 (80) - 44 (5) - 23
1909-1929 United Kingdom
3 Jose Angel Napoles 79 (55) - 7 (4) - 0
1958-1975 orthodox Cuba
4 Jack Britton 212 (30) - 52 (1) - 42
1905-1930 orthodox United States
5 Sugar Ray Leonard 36 (25) - 3 (1) - 1
1977-1997 orthodox United States
6 Dave Shade 147 (16) - 27 (2) - 62
1918-1935 orthodox United States
7 Johnny Griffiths 62 (15) - 37 (1) - 30
1911-1924 United States
8 Henry Armstrong 149 (101) - 21 (2) - 10
1931-1945 orthodox United States
9 Thomas Hearns 61 (48) - 5 (4) - 1
1977-2006 orthodox United States
10 Floyd Mayweather Jr 39 (25) - 0 (0) - 0
1996-2007 orthodox United States
11 Young Corbett III 124 (33) - 12 (4) - 22
1919-1940 southpaw United States
12 Luis Manuel Rodriguez 107 (49) - 13 (3) - 0
1956-1972 orthodox Cuba
13 Jimmy McLarnin 54 (21) - 11 (1) - 3
1923-1936 orthodox Canada
14 Kid Gavilan 108 (28) - 30 (0) - 5
1943-1958 orthodox Cuba
15 Felix Trinidad 42 (35) - 2 (1) - 0
1990-2005 orthodox Puerto Rico
16 Barney Ross 74 (22) - 4 (0) - 3
1929-1938 orthodox United States
17 Pernell Whitaker 40 (17) - 4 (1) - 1
1984-2001 southpaw United States
18 Harry Lewis 101 (46) - 34 (2) - 20
1903-1913 United States
19 Curtis Cokes 62 (30) - 14 (3) - 4
1958-1972 orthodox United States
20 Soldier Bartfield 120 (34) - 68 (5) - 32
1911-1932 orthodox United States
Top 20 Lightweights:
1 Carlos Ortiz 61 (30) - 7 (1) - 1
1955-1972 orthodox Puerto Rico
2 Benny Leonard 183 (70) - 18 (4) - 12
1911-1932 orthodox United States
3 Joe Gans 130 (89) - 8 (5) - 15
1891-1909 orthodox United States
4 Packey McFarland 101 (51) - 1 (1) - 7
1904-1915 United States
5 Ike Williams 125 (60) - 24 (6) - 5
1940-1955 orthodox United States
6 Roberto Duran 103 (70) - 16 (4) - 0
1968-2001 orthodox Panama
7 Tony Canzoneri 141 (44) - 24 (1) - 10
1925-1939 orthodox United States
8 Ismael Laguna 65 (37) - 9 (0) - 1
1960-1971 orthodox Panama
9 Lou Ambers 94 (31) - 8 (2) - 7
1932-1941 orthodox United States
10 Lockport Jimmy Duffy 93 (21) - 22 (5) - 26
1908-1921 orthodox United States
11 Johnny Dundee 185 (23) - 64 (2) - 39
1910-1932 orthodox United States
12 Freddie Welsh 110 (32) - 24 (1) - 16
1905-1922 United Kingdom
13 Sammy Angott 94 (22) - 28 (1) - 8
1935-1950 orthodox United States
14 Beau Jack 88 (43) - 24 (4) - 5
1939-1955 orthodox United States
15 Rocky Kansas 125 (39) - 26 (3) - 13
1911-1932 United States
16 Bob Montgomery 75 (37) - 19 (3) - 3
1938-1950 orthodox United States
17 Sammy Mandell 137 (31) - 27 (6) - 11
1920-1934 United States
18 Joe Brown 105 (47) - 46 (10) - 13
1943-1970 orthodox United States
19 Freddie Dawson 101 (46) - 13 (2) - 3
1943-1954 orthodox United States
20 Billy Petrolle 121 (65) - 25 (3) - 14
1922-1934 United States
If you think you can place Floyd Mayweather above any 10 of these names, be my guest. I can't even place Mayweather in the Top 50 (yet), although Mayweather isn't done yet. Most of these names are long retired.
