The best fighters of the 20th century as chosen by a five-member panel for The Associated Press.(x-was never a champion in division; ND -- no decision; Years denote first and last fights, plus number of years with at least one fight):

Fighters of Century
1. Sugar Ray Robinson, welterweight and five-time middleweight champion, 175-19-6, 109 KO's. 1940-65. 24.

2. Muhammad Ali, First three-time heavyweight champion, 56-5, 37 KO's. 1960-81. 19.

3. Henry Armstrong, only fighter to hold three titles (featherweight, lightweight and welterweight) simultaneously, 150-21-9, 101 KO's. 1933-45. 13.

4. Joe Louis, defended the heavyweight championship a record 25 times, 68-3, 54 KO's. 1934-51. 14.

5. Willie Pep, featherweight champion who was a brilliant boxer, 230-11-1, 65 KO's. 1940-66. 22.

6. Jack Dempsey, heavyweight champion who participated in several legendary fights, 61-6-8, 50 KO's, 6 ND. 1914-27. 11.

7. Robert Duran, dominant lightweight of 1970's, who also won titles in three other weight classes, 102-114, 69 KO's. 1967-98. 30.

8 Benny Leonard, master boxer who was lightweight champion, 85-5-5, 69 KO's, 119 ND. 1911-32. 16.

9. Billy Conn, light heavyweight champion who made historic challenge against Joe Louis, 63-11-1, 14 KO's. 1934-48. 11.

10. Harry Greb, middleweight champion and only man ever to beat Gene Tunney, 1115-8-3, 51 KO's, 179 ND. 1913-26. 14.

Heavyweights
1. Muhammad Ali, 56-5, 37 KO's. 1960-81. 19.
2. Joe Louis, 68-3, 54 KO's. 1934-51. 14.
3. Rocky Marciano, 49-0, 43 KO's. 1947-55. 9.
4. Jack Dempsey, 61-6-8, 50 KO's, 6 ND. 1914-27. 11.
5. Jack Johnson, 78-13-11, 49 KO's, 18 ND. 1897-1938. 30. tie, Larry Holmes 67-6, 43 KO's. 1973-99. 23.
7. Sonny Liston, 50-4, 39 KO's. 1953-70. 17.
8. Joe Frazier, 32-4-1, 27 KO's. 1965-81. 13. 24.
9. x-Sam Langford, 167-38-37, 117 KO's, 48 ND. 1902-26. 25.
tie, Jersey Joe Walcott, 53-18-1, 33 KO's. 1930-53. 20.

Light Heavyweights
1. Archie Moore, 194-26-8, 141 KO's. 1936-63. 28.
2. Billy Conn, 63-11-1, 14 KO's. 1934-48. 11.
3. x-Ezzard Charles, 96-25-1, 58 KO's. 1940-59. 17.
4. Roy Jones Jr., 40-1, 33 KO's. 1989-still active.
5. x-Jimmy Bivins, 86-25-1, 31 KO's. 1940-55. 15.
tie. Bob Foster, 56-8-1, 46 KO's. 1961-78. 18.
7. Harold Johnson, 76-11, 32 KO's. 1946-71. 23.
8. Philadelphia Jack O'Brien, 100-7-16, 46 KO's. 33 ND. 1901-12. 12.
(tie) x-Tiger Jack Fox, 120-18-6, 81 knockouts. 1932-50. 17.
10. Maxie Rosenbloom, 208-37-22, 19 KO's, 22 ND. 1923-39. 15.

Middleweights
1. Sugar Ray Robinson, 175-19-6, 109 KO's. 1940-65. 24.
2. Harry Greb, 115-8-3, 51 KO's, 179 ND. 1913-26. 14.
3. Marvelous Marvin Hagler, 62-3-2, 53 KO's. 1973-87. 15.
4. Mickey Walker, 93-19-4, 60 KO's, 46 ND. 1919-35. 17.
5. Carlos Monzon, 87-3-9, 59 KO's. 1963-77. 15.
6. x-Charley Burley, 84-11-2, 50 KO's. 1936-50. 15.
7. Jake LaMotta, 83-19-4, 30 KO's. 1941-54. 13.
8. Stanley Ketchel, 52-4-4, 49 KO's. 1904-1910. 7.
9. Marcel Cerdan, 106-4, 61 KO's. 1934-49. 15.
10. Tony Zale, 67-18-2, 45 KO's. 1934-48. 12.

Welterweights
1. Sugar Ray Robinson, 175-19-6, 109 KO's. 1940-65. 24.
3. Sugar Ray Leonard, 36-3-1, 25 KO's. 1977-97 12.
4. Jose Napoles, 77-7, 54 KO's. 1958-77. 18.
5. Barney Ross, 72-4-3, 22 KO's, 2 ND. 1929-38. 10.
6. Carmen Basilio, 56-16-7, 27 KO's. 1948-61. 14.
7. Mickey Walker, 93-19-4, 60 KO's, 46 ND. 1919-35. 17.
8. Emile Griffith, 85-24-2, 23 KO's. 1958-77. 20.
9. Kid Gavilan, 107-30-6, 28 KO's. 1943-58. 16.
10. Luis Rodriguez, 107-13, 49 KO's. 1959-72. 14.

Junior Welterweights
(Five Selections)
1. Aaron Pryor, 39-1, 35 KO's. 1976-90. 13.
2, Barney Ross, 72-4-3, 22 KO's, 2 ND. 1929-38. 10.
3. Tony Canzoneri, 137-24-10, 44 KO's, 4 ND. 1925-39. 15.
4. Wilfred Benitez, 53-8-1, 31 KO's. 1973-90. 15.
5. Antonio Cervantes, 66-12-1, 36 KO's. 1964-83. 20.

Lightweights
1. Roberto Duran, 102-14, 69 KO's, 1967-98. 30.
2. Benny Leonard, 85-5-1, 69 KO's. 119 ND. 1911-32. 16.
3. Tony Canzoneri, 137-24, 44 KO's, 4 ND, 1925-39. 15.
4. Ike Williams, 125-24-5, 60 KO's. 1940-56. 16.
5. Joe Gans, 120-8-9, 85 KO's, 18 ND. 1891-1909. 19.
6. Lou Ambers, 86-8-6, 27 KO's. 1932-41. 10.
(tie) Alexis Arguello, 80-8, 64 KO's. 1968-96. 20.
8. Julio Cesar Chavez, 102-4-2, 83 KO's, 1980-still active.
9. Beau Jack, 83-24-5, 40 KO's, 1 ND. 1940-1955. 13.
10. Carlos Ortiz, 61-7-1, 30 KO's. 1955-72. 17.

Junior Lightweights
(Five Selected)
1. Alexis Arguello, 80-8, 64 knockouts, 1968-96. 20.
2. Kid Chocolate, 135-9-6, 50 KO's. 1927-38. 12.
3. Julio Cesar Chavez, 100-3-2, 83 KO's. 1980-still active.
4. Johnny Dundee, 92-33-18, 22 KO's, 191 ND. 1911-32. 21.
5. Sandy Saddler, 144-16-2, 103 KO's. 1944-56. 12.

Featherweights
1. Willie Pep, 230-11-1, 65 KO's. 1940-66. 22.
2. Sandy Saddler, 144-16-2, 103 KO's. 1944-56. 12.
3. Salvador Sanchez, 44-1-1, 32 KO's. 1975-82. 8.
4. Tony Canzoneri, 137-24-10, 44 KO's, 4 ND. 1925-39. 15.
5. Chalky Wright, 150-40-15, 75 KO's. 1928-48. 21.
6. Henry Armstrong, 151-21-9, 101 KO's. 1931-45. 15.
tie. Vicente Saldivar, 38-3, 27 KO's. 1961-73. 11.
8. Wilfredo Gomez, 44-3-1, 42 KO's. 1974-89. 15.
tie. Azumah Nelson, 39-5-2, 29 KO's. 1979-98. 20.
10. Abe Attell, 91-9-18, 53 KO's, 46 ND. 1900-17. 15.

Bantamweights
1. Ruben Olivares, 88-13-3, 78 KO's, 1965-81. 19. (tie) Carlos Zarate, 61-4, 58 KO's. 1970-88. 12.
3. Eder Jofre, 72-2-4, 50 KO's. 1957-76. 17.
4. Panama Al Brown, 128-19-11, 58 KO's, 4 ND. 1922-42. 19.
5. Manuel Ortiz, 96-28-3, 49 KO's. 1938-55. 16.
6. Lionel Rose, 42-11, 12 KO's. 1964-76. 10.
(tie) Fighting Harada, 55-7, 22 KO's. 1960-70. 11.
8. Alfonso Zamora, 33-5, 32 KO's. 1973-80, 8.
9. Sixto Escobar, 45-22-3, 30 KO's. 1930-40. 11.
10. Jimmy Carruthers, 21-4, 13 KO's. 1950-62. 7.

Flyweights
1. Pancho Villa, 76-5-5, 23 KO's, 21 ND. 1919-25. 7.
(tie) Miguel Canto, 61-9-4, 15 KO's. 1969-82. 14.
3. Jimmy Wilde, 131-3-2, 99 KO's. 13 ND. 1910-23. 13.
4. Fidel La Barba, 75-15-8, 17 KO's, 1 ND. 1924-33.
5. Frankie Genaro, 82-21-8, 19 KO's, 19 ND. 1920-34. 15.
6. Small Montana, 79-22-10, 10 KO's, 1931-41. 11.
7. Charchai Chionoi, 63-19-3, 39 KO's, 1957-75. 19.
8. Ricardo Lopez, 48-0-1, 35 KO's, 1985-still active.
9. Corporal Izzy Schwartz, 58-27-12, 5 KO's. 1922-32. 10.
(tie) Jackie Patterson, 64-25-3, 41 KO's. 1938-51. 14.