John Ruiz 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 world heavyweight title.
Edward Patrick "Mickey" Walker was an American professional boxer who held both the world welterweight and world middleweight championships at different points in his career. Born in Elizabeth, New Jersey, he was also an avid golfer and would later be recognized as a renowned artist. Walker is widely considered one of the greatest fighters ever, with ESPN ranking him 17th on their list of the 50 Greatest Boxers of All-Time and boxing historian Bert Sugar placing him 11th in his Top 100 Fighters catalogue. Statistical website BoxRec rates Walker as the 6th best middleweight ever, while The Ring Magazine founder Nat Fleischer placed him at No. 4. The International Boxing Research Organization ranked Walker as the No. 4 middleweight and the No. 16 pound-for-pound fighter of all-time. Walker was inducted into the Ring magazine Hall of Fame in 1957 and the International Boxing Hall of Fame as a first-class member in 1990.
József Kreul Bugner is a Hungarian-born British-Australian former heavyweight boxer and actor. He holds triple nationality, being a citizen of Hungary and a naturalised citizen of both Australia and the United Kingdom. He unsuccessfully challenged Muhammad Ali for the heavyweight championship in 1975, losing by a unanimous decision. As an actor, he is best known for his role in the 1994 action film Street Fighter alongside Jean-Claude Van Damme and Raul Julia.
Michael Sprott is a British former professional boxer. He held the British and Commonwealth heavyweight titles in 2004 and the EBU European Union heavyweight title twice between 2005 and 2007. He was the winner of the 14th Prizefighter series.
Matt Skelton is a British former professional boxer, kickboxer, and mixed martial artist. In boxing he competed from 2002 to 2014. He challenged once for the WBA heavyweight title in 2008. At regional level, he held the British heavyweight title from 2004 to 2005; the Commonwealth heavyweight title twice between 2004 and 2009; and the EBU heavyweight title in 2008. In kickboxing he competed from 1998 to 2002, and held the IKF Pro Muay Thai super-heavyweight title from 2000 to 2001.
Nikolai Sergeyevich Valuev is a Russian politician and former professional boxer. He competed in boxing from 1993 to 2009, and held the WBA heavyweight title twice between 2005 and 2009. Standing at a height of 2.13 metres (7 ft) and a peak weight of 149 kilograms (328 lb), Valuev is best known for being the tallest and heaviest world champion in boxing history.
Ruslan Shamilevich Chagaev ; born 19 October 1978) is an Uzbekistani former professional boxer who competed from 2001 to 2016. He held the WBA heavyweight title twice and was the first Asian boxer to win a world heavyweight title by any of the four major sanctioning bodies. As of October 2021, BoxRec ranks Chagaev as the seventh greatest Asian fighter of all time, pound for pound. He was ranked in the world's top 10 heavyweights by BoxRec from 2004 to 2013, reaching a career high ranking of third from 2005 to 2007, and as a top 10 heavyweight or contender by The Ring magazine at the conclusion of each year between 2006 and 2015.
Odlanier Solís Fonte is a Cuban professional boxer. He has challenged once for the WBC heavyweight title in 2011, and is a former top-rated contender in that division. As an amateur heavyweight, Solis was one of the most celebrated and decorated amateur stars of the 2000s, winning a gold medal at the 2004 Olympics, and three consecutive golds at the World Championships in 2001, 2003, and 2005. Odlanier Solís beat Luis Ortiz multiple times in the amateurs, never losing to him.
Sultan-Ahmed Magomedsalihovich Ibragimov is a Russian former professional boxer of Dagestani descent. He competed from 2002 to 2008, and held the WBO world heavyweight title from 2007 to 2008. He was ranked by BoxRec as the world's seventh best active heavyweight in 2005 and 2006, and sixth in 2007 and 2008. As an amateur he won silver medals at the 2000 Olympics and 2000 European Championships, and bronze at the 2001 World Championships, all in the heavyweight division.
Fres Oquendo is a Puerto Rican professional heavyweight boxer. He had a successful amateur record before turning professional in 1997. He has challenged three times for world heavyweight titles.
Óscar Andres Rivas Torres is a Colombian professional boxer. He held the WBC bridgerweight title from 2021 to 2023. He also challenged for the vacant WBC interim heavyweight title in 2019, and previously held the IBF International, WBC-NABF and WBO-NABO heavyweight titles. As an amateur, he won a silver medal at the 2007 Pan American Games.
Francesco Pianeta is an Italian former professional boxer who competed from 2005 to 2018. He challenged for the unified WBA (Super), IBF, WBO and The Ring heavyweight championship in 2013 and the WBA (Regular) title in 2015. At regional level, he held the European Union heavyweight title from 2008 to 2009.
Lucas Browne is an Australian professional boxer and former mixed martial artist and kickboxer. He held the WBA (Regular) heavyweight title in 2016 when he stopped Ruslan Chagaev. At regional level, he has held multiple heavyweight championships, including the Australian and Commonwealth heavyweight titles between 2012 and 2015.
Wladimir Klitschko vs. Ruslan Chagaev, billed as "Knockout Auf Schalke", was a professional boxing match contested on 20 June 2009 for the IBF, WBO, IBO, and vacant The Ring heavyweight championship.
Wladimir Klitschko vs. Hasim Rahman, billed as "X-Plosive", was a professional boxing match contested on 13 December 2008 for the IBF, WBO, and IBO heavyweight championship.
Sultan Ibragimov vs. Evander Holyfield, was a professional boxing match contested on 13 October 2007 for the WBO heavyweight championship.
Apti Alkhazurovich Davtaev is a Russian professional boxer.
John Davis, Jr. who boxed professionally under the ring name Steve Hearon, is an American former professional boxer and convicted serial killer. While Davis never fought for a world title, he held several significant wins as a boxer, including one over future WBC world Junior Welterweight champion, Bruce Curry.
The Michael Dokes vs. Mike Weaver or, alternately, Mike Weaver vs. Michael Dokes, boxing fights were a pair of fights that occurred in 1982 and 1983 and were for the World Boxing Association's world Heavyweight title. Both fights were considered controversial due to a separate set of situations. They are both among the most widely spoken about heavyweight boxing contests of the 1980s.
Henry Saenz
Zapote District, San José, Costa Rica
Odlanier Solis 
Key West, Florida, U.S.
Ruslan Chagaev 
Rostock, Germany
Alejandro Agustin Alvarez 
Luis Andres Pineda 
Edegar Da Silva 
Saul Farah 
Ambar Loboa