770 articles
Jai Opetaia
Jai Opetaia, full name Jai Tapu Opetaia, is an unbeaten Australian cruiserweight boxer who won the IBF and Ring world titles from Mairis Briedis in 2022.
Jaime Munguía
Jaime Munguía (Jaime Aaron Munguia Escobedo), Mexican boxer from Tijuana; WBO super-welterweight champion 2018, lost to Canelo Álvarez 2024, cleared in a 2025 doping case, WBA super-middleweight champion 2026.
Jake LaMotta
Jake LaMotta (Giacobbe LaMotta, 1922–2017), the Bronx Bull, world middleweight boxing champion 1949–51, Sugar Ray Robinson's six-time rival, and subject of Scorsese's Raging Bull.
Jake Paul
Jake Paul ("The Problem Child", "El Gallo Dorado"), American YouTuber-turned-professional boxer; 12-2 record with 7 KOs, losses to Tommy Fury and Anthony Joshua, beat Mike Tyson in 2024, co-founded Most Valuable Promotions.
Jake Paul vs. Anderson Silva
Jake Paul vs. Anderson Silva: crossover boxing match, October 29, 2022, Desert Diamond Arena, Glendale, Arizona, Showtime PPV. Paul won a unanimous eight-round decision (77-74, 78-73, 78-73), knocking Silva down in round 8, moving to 6-0.
Jake Paul vs. Anthony Joshua
Jake Paul vs. Anthony Joshua, or Jake vs. Joshua: Judgment Day, was a December 19, 2025 Netflix heavyweight fight in Miami won by Joshua's sixth-round knockout, dropping Paul four times and breaking his jaw.
Jake Paul vs. Ben Askren
Jake Paul vs. Ben Askren: cruiserweight boxing match, April 17, 2021, Mercedes-Benz Stadium, Atlanta, Triller Fight Club PPV. Paul, 3-0 YouTuber-boxer, knocked out retired MMA wrestler Ben Askren at 1:59 of round one in Askren's boxing debut; PPV buys disputed.
Jake Paul vs. Gervonta Davis
Jake Paul vs. Gervonta Davis: scheduled Netflix-streamed exhibition boxing match announced August 20, 2025 for November 14, 2025 (Atlanta, then Miami), pitting cruiserweight Paul against lightweight champion Davis at a 195-pound limit; cancelled November 3, 2025 over a civil lawsuit against Davis.
Jake Paul vs. Mike Tyson
Jake Paul vs. Mike Tyson: heavyweight boxing match, November 15, 2024, AT&T Stadium, Arlington, Texas, streamed on Netflix. Paul won a lopsided eight-round unanimous decision over 58-year-old Tyson; 65 million peak concurrent streams.
James Butler (boxer)
James Butler, "Harlem Hammer" (born 1972), Harlem-born American super middleweight boxer, 1996-2004; lost 2001 IBF title fight to Sven Ottke, assaulted Richard Grant after a 2001 charity bout, and was sentenced to 29 years for Sam Kellerman's 2004 murder.
James DeGale
James DeGale, British boxer, 2008 Beijing Olympic middleweight gold medallist and two-time IBF super middleweight champion; first Briton with both Olympic gold and a pro world title; retired 25-3-1 in 2019.
James J. Braddock
James J. Braddock (1905–1974), the "Cinderella Man," was an American boxer and world heavyweight champion 1935–1937 who beat Max Baer as a 10-to-1 underdog in 1935 and lost the title to Joe Louis in 1937.
James J. Corbett
James J. Corbett, known as "Gentleman Jim," was an American boxer who held the World Heavyweight Championship from 1892 to 1897 and is remembered as a founder of scientific, movement-based boxing.
James J. Jeffries
James J. Jeffries, known as James Jackson Jeffries, was an American boxer who held the world heavyweight championship from 1899 and retired undefeated in 1905.
James Smith (boxer)
James "Bonecrusher" Smith (James Odell Smith, born 1953) is an American heavyweight boxer, WBA heavyweight champion December 1986 to March 1987, who won the title by first-round TKO of Tim Witherspoon and lost it to Mike Tyson.
James Tillis
James "Quick" Tillis (James Theodore Tillis, born 1957), Tulsa, Oklahoma heavyweight boxer, "The Fighting Cowboy"; 42-22-1 (31 KOs), WBA title challenger vs. Weaver 1981, first man to go 10 rounds with Mike Tyson (1986).
James Toney
James 'Lights Out' Toney (born 1968, Grand Rapids) is an American boxer, IBHOF class of 2022, who won IBF world titles at middleweight, super middleweight, and cruiserweight, beat Nunn, Barkley, Jirov, and Holyfield, and lost to Roy Jones Jr. in 1994.
Jan Szczepanski
Jan Szczepanski (Jan Antoni Szczepański, 1939-2017), Polish amateur boxer for Legia Warszawa; 1972 Munich Olympic lightweight gold medalist and 1971 Madrid European champion; six-time Polish champion.
Jan Zachara
Ján Zachara (1928–2025), Slovak boxer for Czechoslovakia, featherweight (≤57 kg) gold medalist at Helsinki 1952, beating Sergio Caprari; quarter-finalist at Melbourne 1956; Olympic Order in Silver recipient.
Jared Anderson (boxer)
Jared Anderson, "The Real Big Baby" (born 1999, Toledo, Ohio), American heavyweight boxer, 18-1 with 15 knockouts, Top Rank prospect, 2021 Prospect of the Year, first loss by fifth-round TKO to Martin Bakole in August 2024.
Jarrell Miller
Jarrell "Big Baby" Miller (born 1988, Brooklyn) is an American heavyweight boxer, 28-1-2 with 22 KOs, a former kickboxer removed from a 2019 Anthony Joshua title fight for doping and later ranked WBA No. 1 in 2026.
Jarrett Hurd
Jarrett "Swift" Hurd, American boxer from Accokeek, Maryland; unified IBF and WBA super welterweight titles 2017-2019, beat Lara, lost to Julian Williams, record 25-4-1.
Jeamie Tshikeva
Jeamie "TKV" Tshikeva (Jeamie Tshikeva Kimbembi), London-born heavyweight boxer from Tottenham; won the British heavyweight title by split decision over Frazer Clarke in November 2025, lost it to Richard Riakporhe by fifth-round TKO in April 2026.
Jean Delarge
Jean Delarge (Jean Joseph Delarge, 1906–1977), Belgian welterweight boxer from Liège; won gold at the 1924 Paris Olympics, beating Héctor Méndez, the only Belgian boxer with Olympic gold.
Jean Despeaux
Jean Sylvain Despeaux (1915-1989), French boxer, won middleweight gold at the 1936 Berlin Olympics by decision over Norway's Henry Tiller, then boxed professionally, twice French middleweight champion 1941-1945.
Jean Pascal
Jean Pascal, born Jean-Thenistor Pascal in Port-au-Prince in 1982, is a Haitian-born Canadian boxer, WBC light heavyweight champion from 2009 to 2011 and WBA regular champion from 2019 to 2021.
Jeff Horn
Jeff Horn, Australian boxer born 1988, beat Manny Pacquiao by unanimous decision in Brisbane in July 2017 to win the WBO welterweight title, then lost it to Terence Crawford in 2018.
Jeff Mayweather
Jeff "Jazzy" Mayweather, American boxer from Grand Rapids, Michigan, based in Las Vegas; youngest Mayweather brother, IBO super featherweight champion 1994–1995, 32-10-5 record, later trainer of Sultan Ibragimov and uncle of Floyd Mayweather Jr.
Jermain Taylor
Jermain Taylor (born 1978, Little Rock, Arkansas), nicknamed Bad Intentions, is an American boxer who won 2000 Olympic light-middleweight bronze and in 2005 beat Bernard Hopkins to take the WBA, WBC, IBF, and WBO middleweight titles in one fight, a first for a male boxer.
Jermall Charlo
Jermall Charlo, "Hit Man" (born 1990, Richmond, Texas), undefeated American boxer, twin brother of Jermell; IBF 154-pound champion 2015 and WBC middleweight champion 2019, 34-0 with 23 KOs, now campaigning at super middleweight.