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 boxer to have ended his career at middleweight, while The Ring Magazine founder Nat Fleischer placed him at No. 4 among greatest middleweights of all time. 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 professional boxer who competed in the heavyweight division and actor. He holds triple nationality, originally 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 as a top 10 heavyweight or contender by The Ring magazine at the conclusion of each year between 2006 and 2015; at the end of 2008 he was ranked third, only behind the Klitschko brothers.
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. He competed from 2002 to 2008, and held the WBO world heavyweight title from 2007 to 2008. He was ranked by The Ring as the world's sixth best active heavyweight at the conclusion of 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 unsuccessfully 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, the WBA (Regular) title in 2015, and in his final fight for the Lineal heavyweight championship in 2018. At regional level, he held the European Union heavyweight title from 2008 to 2009.
Lucas Browne is an Australian former professional boxer, mixed martial artist and kickboxer. In boxing he competed from 2009 to 2024, and held multiple championships including the Australian and Commonwealth heavyweight titles.
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.
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.
Nikolai Valuev vs. Ruslan Chagaev was a professional boxing match contested on 14 April 2007, for the WBA heavyweight championship.
Nikolai Valuev vs. John Ruiz II was a professional boxing match contested on 30 August 2008, for the WBA heavyweight championship.
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