No
				 
			stringlengths 3 
			26 
			 | Champion
				 
			stringlengths 3 
			25 
			 | Recognition
				 
			stringlengths 3 
			18 
			 | Begin_reign
				 
			stringlengths 2 
			18 
			 | End_reign
				 
			stringlengths 1 
			36 
			β  | Days
				 
			stringclasses 16
				values  | Title_defenses
				 
			stringclasses 7
				values  | Additional_recognition
				 
			stringclasses 15
				values  | 
|---|---|---|---|---|---|---|---|
	John L. Sullivan 
 | 
	World 
 | 
	August 29, 1885 
 | 
	September 7, 1892 
 | 
	2,566 
 | 
	β 
 | null  | 
	25 
 | 
					
	James J. Corbett 
 | 
	World 
 | 
	September 7, 1892 
 | 
	March 17, 1897 
 | 
	1,652 
 | 
	def. 
 | null  | 
	5 
 | 
					
	Bob Fitzsimmons 
 | 
	World 
 | 
	March 17, 1897 
 | 
	June 9, 1899 
 | 
	814 
 | 
	β 
 | null  | null  | 
					
	James J. Jeffries 
 | 
	World 
 | 
	June 9, 1899 
 | 
	May 15, 1905 
 | 
	2,166 
 | 
	def. 
 | null  | 
	2 
 | 
					
	Marvin Hart 
 | 
	World 
 | 
	July 3, 1905 
 | 
	February 23, 1906 
 | 
	235 
 | 
	β 
 | null  | 
	1 
 | 
					
	Tommy Burns 
 | 
	World 
 | 
	February 23, 1906 
 | 
	December 26, 1908 
 | 
	1,037 
 | 
	def. James J. Walker on March 28, 1906 
 | null  | null  | 
					
	Jack Johnson 
 | 
	World 
 | 
	December 26, 1908 
 | 
	April 5, 1915 
 | 
	2,291 
 | 
	draw vs. 
 | null  | 
	7 
 | 
					
	Jess Willard 
 | 
	World 
 | 
	April 5, 1915 
 | 
	July 4, 1919 
 | 
	1,551 
 | 
	def. 
 | null  | null  | 
					
	Jack Dempsey 
 | 
	World 
 | 
	July 4, 1919 
 | 
	July 2, 1921 
 | 
	729 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	NBA 
 | 
	July 2, 1921 
 | 
	July 24, 1922 
 | 
	387 
 | 
	β 
 | null  | 
	[ 
 | null  | 
					
	NBA, and NYSAC 
 | 
	July 24, 1922 
 | 
	September 23, 1926 
 | 
	1,522 
 | 
	def. 
 | null  | 
	[ 
 | null  | 
					
	Gene Tunney 
 | 
	NBA, and NYSAC 
 | 
	September 23, 1926 
 | 
	July 31, 1928 
 | 
	677 
 | 
	def. 
 | 
	The Ring 
 | 
	2 
 | 
					
	Max Schmeling 
 | 
	NBA, and NYSAC 
 | 
	June 12, 1930 
 | 
	January 7, 1931 
 | 
	209 
 | 
	β 
 | 
	The Ring 
 | 
	1 
 | 
					
	NBA, and IBU 
 | 
	January 7, 1931 
 | 
	June 21, 1932 
 | 
	531 
 | 
	def. 
 | 
	1 
 | 
	[ 
 | null  | 
					
	Jack Sharkey 
 | 
	NBA, NYSAC, and IBU 
 | 
	June 21, 1932 
 | 
	June 29, 1933 
 | 
	373 
 | 
	β 
 | 
	The Ring 
 | null  | 
					
	Primo Carnera 
 | 
	NBA, NYSAC, and IBU 
 | 
	June 29, 1933 
 | 
	June 14, 1934 
 | 
	350 
 | 
	def. 
 | 
	The Ring 
 | 
	1 
 | 
					
	Max Baer 
 | 
	NBA, NYSAC, and IBU 
 | 
	June 14, 1934 
 | 
	June 13, 1935 
 | 
	364 
 | 
	β 
 | 
	The Ring 
 | 
	9 
 | 
					
	James J. Braddock 
 | 
	NBA, NYSAC, and IBU 
 | 
	June 13, 1935 
 | 
	June 22, 1937 
 | 
	740 
 | 
	β 
 | 
	The Ring 
 | null  | 
					
	Joe Louis 
 | 
	NBA, NYSAC, and IBU 
 | 
	June 22, 1937 
 | 
	March 1, 1949 
 | 
	4,270 
 | 
	def. 
 | 
	The Ring 
 | 
	2 
 | 
					
	Ezzard Charles 
 | 
	NBA 
 | 
	June 22, 1949 
 | 
	September 27, 1950 
 | 
	462 
 | 
	def. 
 | 
	The Ring 
 | 
	1 
 | 
					
	NBA, and NYSAC 
 | 
	September 27, 1950 
 | 
	June 16, 1951 
 | 
	261 
 | 
	def. Nick Barone on December 5, 1950 
 | 
	1 
 | 
	[ 
 | null  | 
					
	NBA, NYSAC, and IBU 
 | 
	June 16, 1951 
 | 
	July 18, 1951 
 | 
	33 
 | 
	β 
 | null  | 
	[ 
 | null  | 
					
	Jersey Joe Walcott 
 | 
	NBA, and NYSAC 
 | 
	July 18, 1951 
 | 
	September 23, 1952 
 | 
	433 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	Rocky Marciano 
 | 
	NBA, and NYSAC 
 | 
	September 23, 1952 
 | 
	April 27, 1956 
 | 
	1,312 
 | 
	def. 
 | 
	The Ring 
 | 
	2 
 | 
					
	Floyd Patterson 
 | 
	NBA, and NYSAC 
 | 
	November 30, 1956 
 | 
	June 26, 1959 
 | 
	938 
 | 
	def. 
 | 
	The Ring 
 | 
	1 
 | 
					
	Ingemar Johansson 
 | 
	NBA, and NYSAC 
 | 
	June 26, 1959 
 | 
	June 20, 1960 
 | 
	360 
 | 
	β 
 | 
	The Ring 
 | null  | 
					
	Floyd Patterson 
 | 
	NBA, and NYSAC 
 | 
	June 20, 1960 
 | 
	September 25, 1962 
 | 
	827 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	Sonny Liston 
 | 
	NYSAC, and WBA 
 | 
	September 25, 1962 
 | 
	July 22, 1963 
 | 
	270 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	NYSAC, WBA, and WBC 
 | 
	July 22, 1963 
 | 
	February 25, 1964 
 | 
	248 
 | 
	β 
 | null  | 
	[ 
 | null  | 
					
	Muhammad Ali 
 | 
	NYSAC, WBA, and WBC 
 | 
	February 25, 1964 
 | 
	June 19, 1964 
 | 
	115 
 | 
	β 
 | 
	The Ring 
 | 
	12 
 | 
					
	NYSAC, and WBC 
 | 
	June 19, 1964 
 | 
	February 6, 1967 
 | 
	962 
 | 
	def. 
 | null  | 
	[ 
 | null  | 
					
	NYSAC, WBA, and WBC 
 | 
	February 6, 1967 
 | 
	April 29, 1967 
 | 
	82 
 | 
	def. 
 | 
	13 
 | 
	[ 
 | null  | 
					
	Ernie Terrell 
 | 
	WBA 
 | 
	March 5, 1965 
 | 
	February 6, 1967 
 | 
	703 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	Joe Frazier 
 | 
	NYSAC 
 | 
	March 4, 1968 
 | 
	February 16, 1970 
 | 
	714 
 | 
	def. 
 | 
	The Ring 
 | 
	1 
 | 
					
	WBA, and WBC 
 | 
	February 16, 1970 
 | 
	January 22, 1973 
 | 
	1,071 
 | 
	def. 
 | 
	15 
 | 
	[ 
 | null  | 
					
	Jimmy Ellis 
 | 
	WBA 
 | 
	April 27, 1968 
 | 
	February 16, 1970 
 | 
	660 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	George Foreman 
 | 
	WBA, and WBC 
 | 
	January 22, 1973 
 | 
	October 30, 1974 
 | 
	646 
 | 
	def. 
 | 
	The Ring 
 | 
	1 
 | 
					
	Muhammad Ali 
 | 
	WBA, and WBC 
 | 
	October 30, 1974 
 | 
	February 15, 1978 
 | 
	1,204 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	Leon Spinks 
 | 
	WBA, and WBC 
 | 
	February 15, 1978 
 | 
	March 18, 1978 
 | 
	31 
 | 
	β 
 | 
	The Ring 
 | 
	3 
 | 
					
	WBA 
 | 
	March 18, 1978 
 | 
	September 15, 1978 
 | 
	181 
 | 
	β 
 | null  | 
	[ 
 | null  | 
					
	Ken Norton 
 | 
	WBC 
 | 
	March 18, 1978 
 | 
	June 9, 1978 
 | 
	83 
 | 
	β 
 | 
	β 
 | 
	16 
 | 
					
	Larry Holmes 
 | 
	WBC 
 | 
	June 9, 1978 
 | 
	December 11, 1983 
 | 
	2,011 
 | 
	def. 
 | 
	The Ring 
 | 
	2 
 | 
					
	IBF 
 | 
	December 11, 1983 
 | 
	September 21, 1985 
 | 
	650 
 | 
	def. 
 | 
	17 
 | 
	[ 
 | null  | 
					
	Muhammad Ali 
 | 
	WBA 
 | 
	September 15, 1978 
 | 
	October 18, 1979 
 | 
	398 
 | 
	β 
 | 
	The Ring 
 | 
	2 
 | 
					
	John Tate 
 | 
	WBA 
 | 
	October 20, 1979 
 | 
	March 31, 1980 
 | 
	163 
 | 
	β 
 | 
	β 
 | 
	1 
 | 
					
	Mike Weaver 
 | 
	WBA 
 | 
	March 31, 1980 
 | 
	December 10, 1982 
 | 
	984 
 | 
	def. 
 | 
	β 
 | null  | 
					
	Michael Dokes 
 | 
	WBA 
 | 
	December 10, 1982 
 | 
	September 23, 1983 
 | 
	287 
 | 
	draw vs. 
 | 
	β 
 | null  | 
					
	Gerrie Coetzee 
 | 
	WBA 
 | 
	September 23, 1983 
 | 
	December 1, 1984 
 | 
	435 
 | 
	β 
 | 
	β 
 | null  | 
					
	Tim Witherspoon 
 | 
	WBC 
 | 
	March 9, 1984 
 | 
	August 31, 1984 
 | 
	175 
 | 
	β 
 | 
	β 
 | 
	1 
 | 
					
	Pinklon Thomas 
 | 
	WBC 
 | 
	August 31, 1984 
 | 
	March 22, 1986 
 | 
	568 
 | 
	def. 
 | 
	β 
 | null  | 
					
	Greg Page 
 | 
	WBA 
 | 
	December 1, 1984 
 | 
	April 29, 1985 
 | 
	149 
 | 
	β 
 | 
	β 
 | null  | 
					
	Tony Tubbs 
 | 
	WBA 
 | 
	April 29, 1985 
 | 
	January 17, 1986 
 | 
	263 
 | 
	β 
 | 
	β 
 | null  | 
					
	Michael Spinks 
 | 
	IBF 
 | 
	September 21, 1985 
 | 
	February 26, 1987 
 | 
	523 
 | 
	def. 
 | 
	The Ring 
 | 
	3 
 | 
					
	Tim Witherspoon 
 | 
	WBA 
 | 
	January 17, 1986 
 | 
	December 12, 1986 
 | 
	329 
 | 
	def. 
 | 
	β 
 | null  | 
					
	Trevor Berbick 
 | 
	WBC 
 | 
	March 22, 1986 
 | 
	November 22, 1986 
 | 
	245 
 | 
	β 
 | 
	β 
 | null  | 
					
	Mike Tyson 
 | 
	WBC 
 | 
	November 22, 1986 
 | 
	March 7, 1987 
 | 
	105 
 | 
	def. 
 | 
	The Ring 
 | null  | 
					
	WBA, and WBC 
 | 
	March 7, 1987 
 | 
	August 1, 1987 
 | 
	147 
 | 
	def. 
 | null  | 
	[ 
 | null  | 
					
	WBA, WBC, and IBF 
 | 
	August 1, 1987 
 | 
	February 11, 1990 
 | 
	925 
 | 
	def. 
 | null  | 
	[ 
 | null  | 
					
	James "Bonecrusher" Smith 
 | 
	WBA 
 | 
	December 12, 1986 
 | 
	March 7, 1987 
 | 
	85 
 | 
	β 
 | 
	β 
 | null  | 
					
	Tony Tucker 
 | 
	IBF 
 | 
	May 30, 1987 
 | 
	August 1, 1987 
 | 
	64 
 | 
	β 
 | 
	β 
 | 
	1 
 | 
					
	Francesco Damiani 
 | 
	WBO 
 | 
	May 6, 1989 
 | 
	January 11, 1991 
 | 
	616 
 | 
	def. Daniel Eduardo Neto on December 16, 1989 
 | 
	β 
 | 
	1 
 | 
					
	James "Buster" Douglas 
 | 
	WBA, WBC, and IBF 
 | 
	February 11, 1990 
 | 
	October 25, 1990 
 | 
	257 
 | 
	β 
 | 
	β 
 | null  | 
					
	Evander Holyfield 
 | 
	WBA, WBC, and IBF 
 | 
	October 25, 1990 
 | 
	November 13, 1992 
 | 
	751 
 | 
	def. 
 | 
	β 
 | null  | 
					
	Ray Mercer 
 | 
	WBO 
 | 
	January 11, 1991 
 | 
	December 24, 1991 
 | 
	348 
 | 
	def. 
 | 
	β 
 | 
	3 
 | 
					
	Michael Moorer 
 | 
	WBO 
 | 
	May 15, 1992 
 | 
	February 3, 1993 
 | 
	265 
 | 
	β 
 | 
	β 
 | 
	1 
 | 
					
	Riddick Bowe 
 | 
	WBA, WBC, and IBF 
 | 
	November 13, 1992 
 | 
	December 14, 1992 
 | 
	32 
 | 
	β 
 | 
	β 
 | 
	2 
 | 
					
	WBA, and IBF 
 | 
	December 14, 1992 
 | 
	November 6, 1993 
 | 
	328 
 | 
	def. 
 | 
	β 
 | null  | 
	[ 
 | 
					
	Lennox Lewis 
 | 
	WBC 
 | 
	December 14, 1992 
 | 
	September 24, 1994 
 | 
	650 
 | 
	def. 
 | 
	β 
 | 
	18 
 | 
					
	Tommy Morrison 
 | 
	WBO 
 | 
	June 7, 1993 
 | 
	October 29, 1993 
 | 
	145 
 | 
	def. Tim Tomashek on August 30, 1993 
 | 
	β 
 | 
	1 
 | 
					
	Michael Bentt 
 | 
	WBO 
 | 
	October 29, 1993 
 | 
	March 19, 1994 
 | 
	142 
 | 
	β 
 | 
	β 
 | null  | 
					
	Evander Holyfield 
 | 
	WBA, and IBF 
 | 
	November 6, 1993 
 | 
	April 22, 1994 
 | 
	168 
 | 
	β 
 | 
	β 
 | null  | 
					
	Herbie Hide 
 | 
	WBO 
 | 
	March 19, 1994 
 | 
	March 11, 1995 
 | 
	358 
 | 
	β 
 | 
	β 
 | null  | 
					
	Michael Moorer 
 | 
	WBA, and IBF 
 | 
	April 22, 1994 
 | 
	November 5, 1994 
 | 
	198 
 | 
	β 
 | 
	β 
 | null  | 
					
	Oliver McCall 
 | 
	WBC 
 | 
	September 24, 1994 
 | 
	September 2, 1995 
 | 
	344 
 | 
	def. 
 | 
	β 
 | null  | 
					
	George Foreman 
 | 
	WBA, and IBF 
 | 
	November 5, 1994 
 | 
	March 4, 1995 
 | 
	119 
 | 
	β 
 | 
	β 
 | 
	3 
 | 
					
	IBF 
 | 
	March 4, 1995 
 | 
	June 29, 1995 
 | 
	117 
 | 
	def. 
 | 
	β 
 | 
	2 
 | 
	[ 
 | 
					
	Riddick Bowe 
 | 
	WBO 
 | 
	March 11, 1995 
 | 
	May 1, 1996 
 | 
	418 
 | 
	def. 
 | 
	β 
 | 
	3 
 | 
					
	Bruce Seldon 
 | 
	WBA 
 | 
	April 8, 1995 
 | 
	September 7, 1996 
 | 
	519 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	Frank Bruno 
 | 
	WBC 
 | 
	September 2, 1995 
 | 
	March 16, 1996 
 | 
	197 
 | 
	β 
 | 
	β 
 | null  | 
					
	Mike Tyson 
 | 
	WBC 
 | 
	March 16, 1996 
 | 
	September 7, 1996 
 | 
	175 
 | 
	β 
 | 
	β 
 | null  | 
					
	WBA, and WBC 
 | 
	September 7, 1996 
 | 
	September 24, 1996 
 | 
	17 
 | 
	β 
 | 
	β 
 | 
	2 
 | 
	[ 
 | 
					
	WBA 
 | 
	September 24, 1996 
 | 
	November 9, 1996 
 | 
	46 
 | 
	β 
 | 
	β 
 | null  | 
	[ 
 | 
					
	Michael Moorer 
 | 
	IBF 
 | 
	June 22, 1996 
 | 
	November 8, 1997 
 | 
	505 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	Henry Akinwande 
 | 
	WBO 
 | 
	June 29, 1996 
 | 
	February 17, 1997 
 | 
	234 
 | 
	def. Alexander Zolkin on 
 | 
	β 
 | 
	1 
 | 
					
	Evander Holyfield 
 | 
	WBA 
 | 
	November 9, 1996 
 | 
	November 8, 1997 
 | 
	365 
 | 
	def. 
 | 
	β 
 | null  | 
					
	WBA, and IBF 
 | 
	November 8, 1997 
 | 
	November 13, 1999 
 | 
	736 
 | 
	def. 
 | 
	β 
 | null  | 
	[ 
 | 
					
	Lennox Lewis 
 | 
	WBC 
 | 
	February 7, 1997 
 | 
	November 13, 1999 
 | 
	1010 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	WBA, WBC, and IBF 
 | 
	November 13, 1999 
 | 
	April 29, 2000 
 | 
	168 
 | 
	β 
 | 
	β 
 | 
	3 
 | 
	[ 
 | 
					
	WBC, and IBF 
 | 
	April 29, 2000 
 | 
	April 22, 2001 
 | 
	358 
 | 
	def. 
 | 
	β 
 | null  | 
	[ 
 | 
					
	Herbie Hide 
 | 
	WBO 
 | 
	June 28, 1997 
 | 
	June 26, 1999 
 | 
	729 
 | 
	def. Damon Reed on 
 | 
	β 
 | 
	1 
 | 
					
	Vitali Klitschko 
 | 
	WBO 
 | 
	June 26, 1999 
 | 
	April 1, 2000 
 | 
	281 
 | 
	def. Ed Mahone on October 9, 1999 
 | 
	β 
 | null  | 
					
	Chris Byrd 
 | 
	WBO 
 | 
	April 1, 2000 
 | 
	October 14, 2000 
 | 
	197 
 | 
	β 
 | 
	β 
 | null  | 
					
	Evander Holyfield 
 | 
	WBA 
 | 
	August 12, 2000 
 | 
	March 3, 2001 
 | 
	204 
 | 
	β 
 | 
	β 
 | 
	1 
 | 
					
	Wladimir Klitschko 
 | 
	WBO 
 | 
	October 14, 2000 
 | 
	March 8, 2003 
 | 
	876 
 | 
	def. 
 | 
	β 
 | null  | 
					
	John Ruiz 
 | 
	WBA 
 | 
	March 3, 2001 
 | 
	March 1, 2003 
 | 
	729 
 | 
	draw vs. 
 | 
	β 
 | null  | 
					
	Hasim Rahman 
 | 
	WBC, and IBF 
 | 
	April 22, 2001 
 | 
	November 17, 2001 
 | 
	210 
 | 
	β 
 | 
	β 
 | null  | 
					
	Lennox Lewis 
 | 
	WBC, and IBF 
 | 
	November 17, 2001 
 | 
	September 5, 2002 
 | 
	293 
 | 
	def. 
 | 
	The Ring 
 | 
	2 
 | 
					
	WBC 
 | 
	September 5, 2002 
 | 
	February 6, 2004 
 | 
	519 
 | 
	def. 
 | 
	2 
 | 
	[ 
 | null  | 
					
	Chris Byrd 
 | 
	IBF 
 | 
	December 14, 2002 
 | 
	April 22, 2006 
 | 
	1,591 
 | 
	def. 
 | 
	β 
 | 
	1 
 | 
					
	Roy Jones Jr. 
 | 
	WBA 
 | 
	March 1, 2003 
 | 
	February 20, 2004 
 | 
	357 
 | 
	β 
 | 
	β 
 | 
	2 
 | 
					
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