boxing Boxing (also known as "Western boxing" or "pugilism") is a combat sport in which two people, usually wearing protective gloves and other protective equipment such as hand wraps and mouthguards, throw punches at each other for a predetermined ...

's beginning, the

heavyweight Heavyweight is a weight class in combat sports and professional wrestling. Boxing Professional Boxers who weigh over are considered heavyweights by 3 of the 4 major professional boxing organizations: the International Boxing Federation, the Wo ...

division had no weight limit, and historically the weight class has gone with vague or no definition. During the 19th century many heavyweights were 170

pound Pound or Pounds may refer to: Units * Pound (currency), a unit of currency * Pound sterling, the official currency of the United Kingdom * Pound (mass), a unit of mass * Pound (force), a unit of force * Rail pound, in rail profile Symbols * Po ...

s (12 st 2 lb, 77 kg) or less, though others weighed considerably more.

John L. Sullivan John Lawrence Sullivan (October 15, 1858 – February 2, 1918), known simply as John L. among his admirers, and dubbed the "Boston Strong Boy" by the press, was an American boxer recognized as the first heavyweight champion of gloved boxing ...

was the first widely recognized champion under Marquess of Queensberry rules. Known as the "Boston Strong Boy," Sullivan weighed around 200 pounds when in shape, and helped transition the sport from its bare-knuckle era. Sullivan would be defeated for the title by "Gentleman" Jim Corbett over 21 rounds on September 7, 1892, the first heavyweight titleholder solely under Queensberry rules. In 1920 a de facto minimum weight for a heavyweight was set at 175 pounds (12 st 7 lb, 79 kg) with the standardization of a weight limit for the light heavyweight division. The addition of the cruiserweight division, which began in 1979, reset the de facto minimum, first to 190 pounds and then to 200 pounds in 2004 when boxing's major sanctioning bodies universally raised the weight limit at which they'd recognize champions. The

World Boxing Council The World Boxing Council (WBC) is an international professional boxing organization. It is among the four major organizations which sanction professional boxing bouts, alongside the World Boxing Association (WBA), International Boxing Federation ...

created a new division called

bridgerweight Bridgerweight is a weight class in professional boxing created and used by the World Boxing Council (WBC). The weight is named after six-year-old American Bridger Walker, who saved his four-year-old sister from a stray dog in July 2020. History Af ...

for boxers weighing between 200 and 225 pounds. As of June 2022 no other major organization has recognized the division. The championship of the heavyweight division has been fractured or disputed at various times in its history. Until the 1960s, such disputes were settled in the ring, typically with alternate title claimants largely being forgotten. The rise of sanctioning organizations, however, have produced an environment where typically there is no single world heavyweight champion, with titleholders recognized by one of these organizations (a "World Champion") or more (a "Super Champion," a "Unified Champion," or, in the rare cases where the four most prominent organizations recognize the same boxer, an "Undisputed Champion"). Some title reigns are considered dubious owing to long periods of inactivity, the legitimacy of the organization granting championship recognition, and other factors. In 1967, for example,

Muhammad Ali Muhammad Ali (; born Cassius Marcellus Clay Jr.; January 17, 1942 – June 3, 2016) was an American professional boxer and activist. Nicknamed "The Greatest", he is regarded as one of the most significant sports figures of the 20th century, a ...

was denied a boxing license in every U.S. jurisdiction and stripped of his passport because of his refusal to be inducted into the armed forces. On April 29, 1967, his recognition as champion by both the

World Boxing Association The World Boxing Association (WBA), formerly known as the National Boxing Association (NBA), is the oldest and one of four major organizations which sanction professional boxing bouts, alongside the World Boxing Council (WBC), International Boxi ...

and

was withdrawn. Yet Ali remained the lineal champion and was recognized by ''

The Ring magazine ''The Ring'' (often called ''The Ring'' magazine or ''Ring'' magazine) is an American boxing magazine that was first published in 1922 as a boxing and wrestling magazine. As the sporting legitimacy of professional wrestling came more into questio ...

'' and most boxing purists until his defeat in 1971. In pursuit of greater revenues, some organizations have now adopted a practice of simultaneously recognizing multiple champions in a weight division, creating a situation in which a champion may be unable not only to secure recognition from multiple sanctioning bodies but to secure sole recognition from a single one.

Championship recognition

File:WBA CHAMPIONSHIP BELT.jpg, WBA championship belt File:VitaliKlitschkoWBCbelt.jpg, WBC championship belt File:IBFworldbelt.jpg, IBF championship belt File:WBOBelt.jpg, WBO championship belt File:Ringmagazine3.jpg, ''The Ring'' magazine championship belt

Public Acclamation: 1884 to 1921

World champions were initially recognized by wide public acclamation, with heavyweight champions winning and losing championship recognition solely in the ring. Retirements periodically resulted in no one, true champion being recognized, while in other cases new champions were proclaimed only to see a previously recognized champion come out of retirement. Public interest in boxing resulted in a true champion being determined by means of title claimants facing one another in the ring, with the winner being recognized as world champion.

The Ring Magazine: 1922 to present

''The Ring'' magazine has recognized heavyweight champions during two periods, commencing with its inaugural issue in 1922 and continuing until the 1990s, then again from 2002 to the present day. Under its original policy, a champion earned championship recognition in the ring, defeating the preceding champion or winning a bout between its top rated contenders. Once awarded, championship recognition could be lost only by death, retirement, or loss in the ring. In 2012, this policy was revised so championship recognition could be more easily awarded or withdrawn.

Sanctioning Bodies: 1921 to present

The

National Boxing Association The World Boxing Association (WBA), formerly known as the National Boxing Association (NBA), is the oldest and one of four major organizations which sanction professional boxing bouts, alongside the World Boxing Council (WBC), International Boxi ...

(NBA) was organized in 1921 to serve as a regulating authority for boxing in the United States. The prominence of New York City as an epicenter of boxing would lead to its state boxing regulatory body, the

New York State Athletic Commission The New York State Athletic Commission or NYSAC, also known as the New York Athletic Commission, is a division of the New York State Department of State which regulates all contests and exhibitions of unarmed combat within the state of New York, ...

(NYSAC) joining the NBA in recognizing world champions in each weight class. A third entity, the

European Boxing Union The European Boxing Union (EBU), formerly known as the International Boxing Union (IBU), is a pan-European governing body that sanctions championship bouts in professional boxing. The EBU governs the most-prestigious continental title in Europe, th ...

(IBU) would follow suit, but with limited exception in the heavyweight division the three organizations recognized the same champion. At its 1962 convention, the NBA's non-United States members exploited a membership rule and took effective control of the organization, rebranding it as the

. The now WBA would be joined the following year by a combination of state and national boxing commissions (including the NYSAC and IBU) to form a new organization, the

(WBC). In time, each organization would have its own spin-off sanctioning organization break from its ranks: the

United States Boxing Association The International Boxing Federation (IBF) is one of four major organizations recognized by the International Boxing Hall of Fame (IBHOF) which sanctions professional boxing bouts, alongside the World Boxing Association (WBA), World Boxing Counci ...

, which disassociated with the WBA in the late 1970s and became the

International Boxing Federation The International Boxing Federation (IBF) is one of four major organizations recognized by the International Boxing Hall of Fame (IBHOF) which sanctions professional boxing bouts, alongside the World Boxing Association (WBA), World Boxing Counci ...

in 1983, and the

World Boxing Organization The World Boxing Organization (WBO) is an organization which sanctions professional boxing bouts. It is recognized by the International Boxing Hall of Fame (IBHOF) as one of the four major world championship groups, alongside the World Boxing ...

, whose members would split from the WBC in 1988. Today there are over a dozen sanctioning organizations which recognize champions and sanction world championship bouts, but the WBA, WBC, IBF, and WBO are recognized by the

International Boxing Hall Of Fame The modern International Boxing Hall of Fame (IBHOF), located in Canastota, New York, honors boxers, trainers and other contributors to the sport worldwide. Inductees are selected by members of the Boxing Writers Association of America. The I ...

as major sanctioning bodies.

Current status of prominent championship titles

List of champions

Footnotes

# Won vacant championship title. # Voluntarily relinquished championship title. # Championship recognition withdrawn by sanctioning organization upon his refusal to fight an opponent of the organization's designation. # In 1882, Sullivan defeated

Paddy Ryan Patrick Ryan (15 March 1851 – 14 December 1900) was an Irish American boxer, and became the bare-knuckle American heavyweight champion on May 30, 1880, after he won the title from Joe Goss. He retained the title until losing it to the except ...

to win the bare-knuckle championship of America. A lack of legitimate challengers elsewhere gradually resulted in Sullivan earning worldwide recognition. On August 29, 1885, he defeated Dominick McCaffrey in a bout described as "the Marquess of Queensberry glove contest for the championship of the world." # Corbett announced his retirement from boxing in 1895, nominating Steve O'Donnell as his successor. As tradition demanded the title be won in the ring, O'Donnell was matched against Peter Maher on November 11, 1895, at

Maspeth Maspeth is a residential and commercial community in the borough of Queens in New York City. It was founded in the early 17th century by Dutch and English settlers. Neighborhoods sharing borders with Maspeth are Woodside to the north; Sunnyside t ...

, New York. Maher won via first-round knockout, but the public generally didn't accept Maher and Maher himself expressed a desire to fight Corbett for the "real" title. In Maher's next bout,

Bob Fitzsimmons Robert James Fitzsimmons (26 May 1863 – 22 October 1917) was a British professional boxer who was the sport's first three-division world champion. He also achieved fame for beating Gentleman Jim Corbett (the man who beat John L. Sullivan) ...

defeated him via first-round knockout on February 21, 1896. Fitzsimmons in turn was defeated by

Tom Sharkey Thomas "Sailor Tom" Sharkey (November 26, 1873 – April 17, 1953) was a boxer who fought two fights with heavyweight champion James J. Jeffries. Sharkey's recorded ring career spanned from 1893 to 1904. He is credited with having won 40 fig ...

Dundalk Dundalk ( ; ga, Dún Dealgan ), meaning "the fort of Dealgan", is the county town (the administrative centre) of County Louth, Ireland. The town is on the Castletown River, which flows into Dundalk Bay on the east coast of Ireland. It is h ...

on December 2, 1896, in a contest billed as for the heavyweight title. Corbett announced his return to the ring shortly thereafter, at which time the championship claims of Maher, Fitzsimmons, and Sharkey were for the most part dismissed. Sharkey's title claims lapsed when he was defeated by Jeffries in May 1898. # Jeffries announced his retirement, relinquishing the title and promoting a match between

Marvin Hart Marvin Hart (September 16, 1876 – September 17, 1931) was the World Heavyweight Boxing Champion from July 3, 1905, to February 23, 1906. Boxing career Hart, nicknamed "The Louisville Plumber" because of his former trade, gained considerable p ...

and

Jack Root John Arthur Root, known professionally as Jack Root (May 26, 1875 – June 10, 1963) was an American boxer. He was the first world light heavyweight champion as well as a challenger for the world heavyweight title. He fought out of Chicago. He wa ...

for the championship. Jeffries returned to the ring to challenge Jack Johnson. # The British

National Sporting Club The National Sporting Club was a club founded in London in 1891, which did more to establish the sport of boxing in Great Britain than any other organisation. Origins The club was founded on 5 March 1891 as a private club. Its premises were at ...

withdrew its recognition of Johnson as champion when he refused to defend his title against the British champion William "Iron" Hague. The NSC matched Hague with Canadian

Sam Langford Samuel Edgar Langford (March 4, 1886 – January 12, 1956), known as the Boston Tar Baby, Boston Terror and Boston Bonecrusher, was a Black Canadian boxing standout of the early part of the 20th century. Called the "Greatest Fighter Nobody Know ...

for its title on May 24, 1909. Langford won via fourth-round knockout but never pursued a championship claim. # Schmeling earned championship recognition by defeating

Jack Sharkey Jack Sharkey (born Joseph Paul Zukauskas, lt, Juozas Povilas Žukauskas, October 26, 1902 – August 17, 1994) was a Lithuanian-American world heavyweight boxing champion. Boxing career He took his ring name from his two idols, heavyweight ...

by controversial disqualification. The

withdrew its recognition of Schmeling when he refused to grant Sharkey an immediate rematch. The NYSAC did not recognize a champion until Sharkey defeated Schmeling in 1932. # In late 1934, the International Boxing Union (IBU) ordered Baer to defend his title against European champion Pierre Charles of Belgium. When Baer refused, the IBU sanctioned a bout between Charles and American George Godfrey for their title on October 2, 1935. Godfrey won via fifteen-round decision but never pursued a championship claim. The IBU ultimately recognized Baer's successor

James J. Braddock James Walter Braddock (June 7, 1905 – November 29, 1974) was an American boxer who was the world heavyweight champion from 1935 to 1937. Fighting under the name James J. Braddock (ostensibly to follow the pattern set by two prior world boxing ...

as champion. # Two months after Louis' retirement announcement, the International Boxing Union sanctioned a bout between British champion Bruce Woodcock and American

Lee Savold Lee Savold (born Lee Hulver; March 22, 1915 – May 14, 1972) was an American heavyweight boxer who held the British and European (EBU) version of the World Heavyweight championship between 1950 and 1951 and was a leading contender in the 1940s an ...

for its version of the title. The bout was not staged until June 1950, however, due to delays caused by injuries suffered by Woodcock in an automobile accident. Meanwhile,

Ezzard Charles Ezzard Mack Charles (July 7, 1921 – May 28, 1975), known as the Cincinnati Cobra, was an American professional boxer and World Heavyweight Champion. Known for his slick defense and precision, he is often considered the greatest light heavywei ...

defeated

Jersey Joe Walcott Arnold Raymond Cream (January 31, 1914 – February 25, 1994), best known as Jersey Joe Walcott, was an American professional boxer who competed from 1930 to 1953. He held the NYSAC, NBA, and ''The Ring'' heavyweight titles from 1951 to 1952, ...

to win the vacant

championship title. Savold defeated Woodcock in four rounds to win the IBU title, while Charles gained

recognition and wide public acclaim as champion upon defeating former champion

Joe Louis Joseph Louis Barrow (May 13, 1914 – April 12, 1981) was an American professional boxer who competed from 1934 to 1951. Nicknamed the Brown Bomber, Louis is widely regarded as one of the greatest and most influential boxers of all time. He rei ...

in September 1950. On June 15, 1951, Joe Louis defeated Savold via sixth-round knockout, after which the IBU withdrew its recognition of Savold and proclaimed Ezzard Charles as champion. # Following Marciano's retirement, Patterson was matched against Tommy "Hurricane" Jackson in a championship eliminator on June 8, 1956. Winning via controversial split decision, Patterson then faced light heavyweight titleholder

Archie Moore Archie Moore (born Archibald Lee Wright; December 13, 1913 – December 9, 1998) was an American professional boxer and the longest reigning World Light Heavyweight Champion of all time (December 1952 – May 1962). He had one of the longest ...

for the vacant title. Upon defeating Moore, Patterson fought (and defeated) Jackson a second time on July 29, 1957. # The

withdrew their championship recognition of Clay (by then known as Muhammad Ali) upon agreeing to an immediate rematch against former champion

Sonny Liston Charles L. "Sonny" Liston ( 1930 – December 30, 1970) was an American professional boxer who competed from 1953 to 1970. A dominant contender of his era, he became the world heavyweight champion in 1962 after knocking out Floyd Patterson i ...

, in violation of WBA rules. The newly founded

and other sanctioning groups continued to recognize Ali as champion. # The

and others withdrew their championship recognition of Ali following his refusal to be inducted into the

United States Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cla ...

subsequent to his conscription. # To fill its vacant championship title, the

organized a single-elimination tournament involving eight of their ranked contenders (

Joe Frazier Joseph William Frazier (January 12, 1944November 7, 2011), nicknamed "Smokin' Joe", was an American professional boxer who competed from 1965 to 1981. He was known for his strength, durability, formidable left hand, and relentless pressure fi ...

, who was ranked No. 2, declined to participate):

Oscar Bonavena Oscar Natalio "Ringo" Bonavena (September 25, 1942 – May 22, 1976) was an Argentine heavyweight professional boxer with a career record of 58 wins, 9 losses and 1 draw. A rugged, wild-swinging puncher, he was nicknamed "Ringo" because of his Bea ...

Jimmy Ellis Jimmy Ellis may refer to: * Jimmy Ellis (boxer) (1940–2014), American boxer * Jimmy "Orion" Ellis (1945–1998), American singer * Jimmy "Preacher" Ellis (born 1935), American musician * Jimmy Ellis (1938–2012), lead singer of The Trammps * Ji ...

Leotis Martin Leotis Martin (June 17, 1939 – November 20, 1995) was an American boxer, the first ever NABF heavyweight champion and is best known for his victory over former heavyweight champion Sonny Liston. Martin was a good puncher and a fairly skille ...

Karl Mildenberger Karl Mildenberger (23 November 1937 – 4 October 2018) was a German heavyweight boxer. He was the European Heavyweight Champion from 1964 to 1968, during which he retained the title six times. He unsuccessfully challenged Muhammad Ali for the ...

, two-time former champion

Floyd Patterson Floyd Patterson (January 4, 1935 – May 11, 2006) was an American professional boxer who competed from 1952 to 1972, and twice reigned as the world heavyweight champion between 1956 and 1962. At the age of 21, he became the youngest boxer in his ...

Jerry Quarry Jerry Quarry (May 15, 1945 – January 3, 1999), nicknamed "Irish" or "The Bellflower Bomber", was an American professional boxer. During the peak of his career from 1968 to 1971, Quarry was rated by ''The Ring'' magazine as the most popular ...

Thad Spencer Thaddeus Spencer Jr. (March 28, 1943 – December 13, 2013) was an American heavyweight boxer. A native of Portland, Oregon, Spencer made his professional boxing debut in May 1960. After building up a 31-5 record, which included wins over conten ...

, and former WBA champion

Ernie Terrell Ernie is a masculine given name, frequently a short form (hypocorism) of Ernest, Ernald, Ernesto, or Verner. It may refer to: People * Ernie Accorsi (born 1941), American football executive * Ernie Adams (disambiguation) * Ernie Afaganis (born c ...

. In first round matches, Ellis defeated Martin, Quarry defeated Patterson, Spencer defeated Terrell, and Bonavena defeated Mildenberger. In the semi-finals, Ellis defeated Bonavena while Quarry defeated Spencer; and Ellis defeated Quarry for the championship title. Frazier, meanwhile, was matched against

Buster Mathis Buster Mathis (June 11, 1943 – September 6, 1995) was an American boxer. Career Mathis had a successful career as an amateur heavyweight boxer. He qualified for a spot in the 1964 Tokyo Olympics, but had to withdraw due to an injury. He was re ...

for a championship recognized by the

together with the commissions of Illinois, Maine, Massachusetts and Pennsylvania. Similar "world" championship recognition was bestowed upon him by the Texas Athletic Commission following a victory over Dave Zyglewicz on April 22, 1969. # Frazier defeated Ellis to unify the heavyweight championship, but did not gain World public acclaim as champion until defeating

on March 8, 1971. # In an unprecedented move, upon withdrawing its recognition of

Leon Spinks Leon, Léon (French) or León (Spanish) may refer to: Places Europe * León, Spain, capital city of the Province of León * Province of León, Spain * Kingdom of León, an independent state in the Iberian Peninsula from 910 to 1230 and again fro ...

as champion, the

immediately recognized

Ken Norton Kenneth Howard Norton Sr. (August 9, 1943 – September 18, 2013) was an American professional boxer who competed from 1967 to 1981, and held the WBC world heavyweight championship in 1978. He is best known for his fights with Muhammad Ali, i ...

as champion, based on an earlier victory over Jimmy Young. As a condition of being named champion, Norton was ordered to face the WBC's new mandatory challenger,

Larry Holmes Larry Holmes (born November 3, 1949) is an American former professional boxer who competed from 1973 to 2002 and was world heavyweight champion from 1978 until 1985. He grew up in Easton, Pennsylvania, which led to his boxing nickname of the "Eas ...

within 120 days. # Holmes relinquished his

championship and accepted championship recognition bestowed by the newly organized

. # Following its 1978 precedent, upon withdrawing championship recognition from Riddick Bowe, the

immediately awarded championship recognition to

Lennox Lewis Lennox Claudius Lewis (born 2 September 1965) is a former professional boxer and boxing commentator who competed from 1989 to 2003. He is a three-time world heavyweight champion, a two-time lineal champion, and the last heavyweight to hold ...

, on the basis of his victory in an October 31, 1992 "championship eliminator" over

Donovan Ruddock Donovan "Razor" Ruddock (born December 21, 1963) is a Jamaican-born Canadian former professional boxer who competed from 1982 to 2001 and in 2015. He is known for his two fights against Mike Tyson in 1991, a fight against Lennox Lewis in 1992, a ...

. # Following its withdrawal of recognition from

George Foreman George Edward Foreman (born January 10, 1949) is an American former professional boxer, entrepreneur, minister and author. In boxing, he was nicknamed "Big George" and competed between 1967 and 1997. He is a two-time world heavyweight champio ...

, the

sanctioned a December 9, 1995, match between

Francois Botha Francois "Frans" Botha (born 28 September 1968) is a South African former professional boxer and kickboxer. He competed in boxing from 1990 to 2014, and is perhaps best known for winning the IBF heavyweight title against Axel Schulz in 1995, b ...

and

Axel Schulz Axel Schulz (born 9 November 1968) is a German former professional boxer who competed from 1990 to 1999, and in 2006. He challenged three times for both the IBF and European heavyweight titles. As an amateur he won a bronze medal at the 1989 ...

for its championship. Botha won the bout by split decision, but the bout result and Botha's championship title were vacated after Botha's post-fight drug test revealed he had taken illegal

anabolic steroids Anabolic steroids, also known more properly as anabolic–androgenic steroids (AAS), are steroidal androgens that include natural androgens like testosterone as well as synthetic androgens that are structurally related and have similar effects t ...

. A subsequent bout between Schulz and

Michael Moorer Michael Lee Moorer (born November 12, 1967) is an American former professional boxer who competed from 1988 to 2008. He won a world championship on four occasions in two weight classes, having held the WBO light heavyweight title from 1988 to ...

was sanctioned for the IBF championship. # Upon defeating

John Ruiz John Ruiz (born January 4, 1972) is an American former professional boxer who competed from 1992 to 2010, and held the WBA heavyweight title twice between 2001 and 2005. Ruiz is of Puerto Rican descent, and is the first Latino boxer to win a wo ...

Roy Jones Jr. Roy Levesta Jones Jr. (born January 16, 1969) is an American former professional boxer who holds dual American and Russian citizenship. He competed in boxing from 1989 to 2018, and held multiple world championships in four weight classes, inc ...

simultaneously held the

's heavyweight and light heavyweight titles. At his request, the WBA suspended its rule prohibiting simultaneous title holding. It later declared Jones its "Champion in Recess," and sanctioned a December 13, 2003, bout between Ruiz and

Hasim Rahman Hasim Sharif Rahman (born November 7, 1972) is an American former professional boxer who competed from 1994 to 2014. He is a two-time world heavyweight champion, having held the unified WBC, IBF, IBO and lineal titles in 2001; and the WBC tit ...

for its "interim" championship. Ruiz won the bout. On February 20, 2004, Jones relinquished his heavyweight title to resume boxing as a light heavyweight, at which point Ruiz was elevated to full championship recognition. On April 30, 2005, Ruiz was defeated by

James Toney James Nathaniel Toney (born August 24, 1968) is an American former professional boxer who competed from 1988 to 2017. He held multiple world championships in three weight classes, including the IBF and lineal middleweight titles from 1991 to ...

in a championship defense, but post-fight drug testing determined Toney had taken

Nandrolone Nandrolone, also known as 19-nortestosterone, is an androgen and anabolic steroid (AAS) which is used in the form of esters such as nandrolone decanoate (brand name Deca-Durabolin) and nandrolone phenylpropionate (brand name Durabolin). Nandrolon ...

, an

anabolic steroid Anabolic steroids, also known more properly as anabolic–androgenic steroids (AAS), are steroidal androgens that include natural androgens like testosterone (medication), testosterone as well as synthetic androgens that are structurally related ...

. The bout's result was subsequently changed to a "no contest," whereupon the WBA reinstated Ruiz as champion. # Following repeated injuries to champion

Vitali Klitschko Vitali Volodymyrovych Klitschko (; uk, Віта́лій Володи́мирович Кличко́ ; born 19 July 1971) is a Ukrainian politician and former professional boxer who serves as mayor of Kyiv World Boxing Council The World Boxing Council (WBC) is an international professional boxing organization. It is among the four major organizations which sanction professional boxing bouts, alongside the World Boxing Association (WBA), International Boxing Federation ...

sanctioned an August 13, 2005, bout between

and

Monte Barrett Monte Barrett (born May 26, 1971) is an American former professional boxer who competed from 1996 to 2014. He challenged once for the WBA heavyweight title in 2006, and fought many top heavyweight champions and contenders during his career. Am ...

for its "interim" championship. Rahman won the bout, and when Klitschko relinquished his title three months later, the WBC elevated Rahman to full championship recognition. # Following repeated injuries which prevented him from defending his title, the

designated Chagaev a "Champion in Recess," sanctioning an August 30, 2008, bout between former champions

and

Nikolai Valuev Nikolai Sergeyevich Valuev (, rus, Никола́й Серге́евич Валу́ев, p=vɐˈlujɪf; born 21 August 1973) is a Russian politician and former professional boxer. He competed in boxing from 1993 to 2009, and held the WBA heav ...

for its "interim" title; a bout won by Valuev. Upon his recovery however, Chagaev opted to face

Wladimir Klitschko Wladimir Klitschko; an equivalent English spelling is Vladimir Klichko . His full name in uk, label=Ukrainian is, Володимир Володимирович Кличко, Volodymyr Volodymyrovych Klychko, . ( uk, Володимир Вол� ...

rather than Valuev, whereupon the WBA withdrew championship recognition. # The

modified its championship structure, creating a new "Super Champion" status to be awarded to champions who hold multiple titles simultaneously. Now subordinated to this was the status of "World Champion," commonly referred to as the "Regular" champion. The organization then sanctioned a bout between Povetkin and former champion

Ruslan Chagaev Ruslan Shamilevich Chagaev ( tt-Cyrl, Руслан Шамил улы Чагаев; uz, Ruslan Shamilovich Chagayev; russian: Руслан Шамилович Чагаев); born 19 October 1978) is an Uzbekistani former professional boxer who c ...

for this "regular" title. Povetkin's reign as the WBA's "regular champion" ended upon a loss to "Super Champion"

, at which point the "regular" title was vacant. # Browne defeated

for the

's "regular" championship title, but Browne subsequently tested positive for

Clenbuterol Clenbuterol is a sympathomimetic amine used by sufferers of breathing disorders as a decongestant and bronchodilator. People with chronic breathing disorders such as asthma use this as a bronchodilator to make breathing easier. It is most commonl ...

, a banned substance. Following confirmation of the positive result, the WBA withdrew its recognition of Browne's "regular" championship. # On October 29, 1877, a fight between British fighters Tom Allen and Tompkin Gilbert at the

Sadler's Wells Theatre Sadler's Wells Theatre is a performing arts venue in Clerkenwell, London, England located on Rosebery Avenue next to New River Head. The present-day theatre is the sixth on the site since 1683. It consists of two performance spaces: a 1,500-seat ...

, London was billed as for the World heavyweight title under Marquess of Queensberry Rules. Allen won in seven rounds. # Bryan was due to fight Manuel Charr on January 29, 2021, for the WBA Regular championship, but Charr was unable to attain the right visa to come to the US, where the fight was to be held. Due to the long period of inactivity, Charr was stripped of the title and Bryan fought Bermane Stiverne for the now vacant title instead.

List of combined reigns

''As of September 25, 2021''. Keys: : Active title reign : Reign has ended :WBO heavyweight title bouts before August 1997 are not includedSeveral IBHOF inductees’ professional boxing records printed in the organization's official record books indicate that IBHOF did not recognize WBO as a major organization until at least August 23, 1997: * IBHOF official record book, 1997 edition **

Sugar Ray Leonard Ray Charles Leonard (born May 17, 1956), best known as "Sugar" Ray Leonard, is an American former professional boxer, motivational speaker, and occasional actor. Often regarded as one of the greatest boxers of all time, he competed professiona ...

's opponent

Thomas Hearns Thomas Hearns (born October 18, 1958) is an American former professional boxer who competed from 1977 to 2006. Nicknamed the "Motor City Cobra", and more famously "The Hitman", Hearns's tall, slender build and oversized arms and shoulders allowed ...

, who was defending the WBO super middleweight title against him on 12 June 1989, is not marked as World Champion * IBHOF official record book, 1999 edition ** Sugar Ray Leonard's opponent Thomas Hearns, who was defending the WBO super middleweight title against him on 12 June 1989, is not marked as World Champion * IBHOF official record book, 2002 edition ** Sugar Ray Leonard's opponent Thomas Hearns, who was defending the WBO super middleweight title against him on 12 June 1989, is not marked as World Champion * IBHOF official record book, 2006 edition ** Sugar Ray Leonard's opponent Thomas Hearns, who was defending the WBO super middleweight title against him on 12 June 1989, is not marked as World Champion **

Michael Carbajal Michael Carbajal (born September 17, 1967) is an American five-time world boxing champion of Mexican descent. His nickname was "Little Hands Of Stone," after his favorite boxer,"Hands Of Stone" Roberto Durán. Amateur career Carbajal had an amat ...

's opponent

Josue Camacho Josue is a name, a variant of the name Joshua (name), Joshua. It may refer to: Given name * Josué Dubois Berthelot de Beaucours (1662-1750), French military officer * Athanase Josué Coquerel (1820-1875), French Protestant theologian * Josue Dupon ...

, who was defending the WBO junior flyweight title against him on 15 July 1994, is not marked as World Champion ** Michael Carbajal’s opponent

Jorge Arce Jorge Armando Arce Armenta (; born July 27, 1979), best known as Jorge Arce, is a Mexican former professional boxer who competed from 1996 to 2014. He is a multiple-time world champion, and the second boxer from Mexico to win world titles in ...

, who was defending the WBO junior flyweight title against him on 31 July 1999, is marked as World Champion * IBHOF official record book, 2011 edition ** Sugar Ray Leonard's opponent Thomas Hearns, who was defending the WBO super middleweight title against him on 12 June 1989, is not marked as World Champion ** Michael Carbajal's opponent Josue Camacho, who was defending the WBO junior flyweight title against him on 15 July 1994, is not marked as World Champion ** Ricardo Lopez's opponent Alex Sanchez, who was defending the WBO minimumweight title against him on 23 August 1997, is marked as World Champion ** Michael Carbajal’s opponent Jorge Arce, who was defending the WBO junior flyweight title against him on 31 July 1999, is marked as World Champion

List of individual reigns

The list includes ''The Ring'' belt. Career total time as champion (for multiple time champions) does not apply. Keys: : Active Title Reign : Reign has ended :The WBO heavyweight title bouts before August 1997 are not included

By nationality

References

Sources

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Boxing Title Fights

NBA World Heavyweight Champion - BoxRec

NYSAC World Heavyweight Champion – BoxRec

The BoxRec – Boxing's Official Record Keeper

The BoxRec Wiki Encyclopedia

The Boxing Register: International Boxing Hall Of Fame Official Record Book
(archive) {{World boxing champions Heavyweight champions * World boxing champions by weight class