Lennox Claudius Lewis is a boxing commentator and former professional boxer who competed from 1989 to 2003. He is a three-time world heavyweight champion, a two-time lineal champion, and held the undisputed championship. Holding dual British and Canadian citizenship, Lewis represented Canada as an amateur at the 1984 and 1988 Olympics; in the latter, he won a gold medal in the super-heavyweight division.
Larry Holmes is an American former professional boxer who competed from 1973 to 2002 and was world heavyweight champion from 1978 until 1985. He is often considered to be one of the greatest heavyweight boxers of all time. He grew up in Easton, Pennsylvania, which led to his boxing nickname of the "Easton Assassin".
Evander Holyfield is an American former professional boxer who competed between 1984 and 2011. He reigned as the undisputed champion at cruiserweight in the late 1980s and at heavyweight in the early 1990s, and was the only boxer in history to win the undisputed championship in two weight classes in the "three belt era", a feat later surpassed by Terence Crawford, Naoya Inoue and Oleksandr Usyk, who became two-weight undisputed champions in the four-belt era. Nicknamed "the Real Deal", Holyfield is the only four-time world heavyweight champion, having held the unified WBA, WBC, and IBF titles from 1990 to 1992, the WBA and IBF titles again from 1993 to 1994, the WBA title a third time from 1996 to 1999; the IBF title a third time from 1997 to 1999 and the WBA title for a fourth time from 2000 to 2001.
Floyd Patterson 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 history to win the title, and was also the first heavyweight to regain the title after losing it. As an amateur, he won a gold medal in the middleweight division at the 1952 Summer Olympics. He has been named among the top 15 heavyweights of all time.
Roy Levesta Jones Jr. is an American-Russian professional boxer. He has held multiple world championships in four weight classes, including titles at middleweight, super middleweight, light heavyweight, and heavyweight. As an amateur boxer he represented the United States at the 1988 Summer Olympics, winning a light middleweight silver medal.
Hasim Sharif Rahman 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 title again from 2005 to 2006. He was ranked as a top 10 heavyweight by BoxRec from 2000 to 2007, and reached his highest ranking of world No.6 in 2000.
Samuel Edgar Langford was a Canadian boxing standout of the early part of the 20th century. Called the "Greatest Fighter Nobody Knows", by ESPN, Langford is considered by many boxing historians to be one of the greatest fighters of all time. Originally from Weymouth Falls, a small community in Nova Scotia, he was known as "the Boston Bonecrusher", "the Boston Terror", and his most famous nickname, "the Boston Tar Baby". Langford stood 5 ft 6+1⁄2 in (1.69 m) and weighed 185 lb (84 kg) in his prime. He fought from lightweight to heavyweight and defeated many world champions and legends of the time in each weight class. Considered a devastating puncher even at heavyweight, Langford was rated No. 2 by The Ring on their list of "100 greatest punchers of all time". One boxing historian described Langford as "experienced as a heavyweight James Toney with the punching power of Mike Tyson".
Jack Sharkey was a Lithuanian-American boxer who held the NYSAC, NBA, and The Ring heavyweight titles from 1932 to 1933.
The two fights between Muhammad Ali and Sonny Liston for boxing's World Heavyweight Championship were among the most controversial fights in the sport's history. Sports Illustrated magazine named their first meeting, the Liston–Clay fight, as the fourth greatest sports moment of the twentieth century.
Daniel Peter Williams is a British professional boxer. He has challenged once for the WBC and the Ring magazine heavyweight titles in 2004. At regional level, he has held multiple heavyweight championships, including the Commonwealth title twice between 1999 and 2006; the British title twice between 2000 and 2010; and challenged once for the European title in 2003. As an amateur, he won bronze medals at the 1993 European Championships and 1994 Commonwealth Games. Williams is best known for scoring an upset knockout victory against Mike Tyson in 2004.
Samuel Okon Peter is a Nigerian professional boxer. He held the WBC heavyweight title in 2008, when he stopped Oleg Maskaev in six rounds. In his prime, he was known for his rivalry with the Klitschko brothers, having faced Wladimir twice and Vitali once. Peter was named among the 20 greatest athletes in the history of independent Nigeria by The Punch in 2023, while his capturing of the WBC heavyweight title was ranked the 26th most memorable moment in independent Nigeria's sports history by Premium Times in 2020. He was ranked by The Ring among ten best heavyweights at the conclusion of a year from 2005 to 2008, reaching his highest ranking of world No.2 in 2007. Peter is known for his punching power and holds a 78.9% knockout-to-win ratio.
DaVarryl Jerome Williamson is an American former professional boxer. A highly-touted amateur, he challenged once for the IBF world heavyweight title in 2005.
Jean-Marc Gilbert Mormeck is a French former professional boxer who competed from 1995 to 2014. He is a two-time unified world cruiserweight champion, having held the WBA, WBC and The Ring world titles twice between 2005 and 2007. He was the first boxer to hold unified cruiserweight title since Evander Holyfield in 1988, and the first fighter to hold The Ring cruiserweight title since Carlos De León in 1987. He was ranked by BoxRec as the world's top 10 cruiserweight from 2001 to 2005 and in 2007, and was ranked No.1 in 2003 and 2004. Mormeck also challenged for the unified world heavyweight title in 2012.
Oliver McCall is an American former professional boxer who competed from 1985 to 2019. A veteran of the sport for over three decades, he is best known for winning the WBC heavyweight title in 1994 by scoring an upset knockout victory over Lennox Lewis. The next year he defended the title against Larry Holmes before losing it to Frank Bruno. McCall is also known for an infamous in-ring mental breakdown during his 1997 rematch with Lewis. McCall's son, Elijah, is also a heavyweight professional boxer. McCall is known for never being knocked down in his 74-bout professional career and possessed one of the most durable chins of his time. According to Frank Bruno: He was also known to be Mike Tyson's top sparring partner.
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.
Kubrat Venkov Pulev is a Bulgarian professional boxer. He has challenged once for the IBF and the Ring magazine heavyweight titles in 2014, and once for the unified heavyweight title in 2020. At regional level, he has held multiple heavyweight championships, including the European title twice between 2012 and 2016. As an amateur, he won multiple medals at international tournaments, including gold at the 2008 European Championships and bronze at the 2005 World Championships, all in the super-heavyweight division. He also represented Bulgaria at the 2008 Olympics.
David Price is a British former professional boxer who competed from 2009 to 2019. At regional level, he held multiple heavyweight championships, including the British and Commonwealth titles from 2012 to 2013; and challenged once for the European title in 2015. As an amateur, he won a bronze medal at the 2008 Olympics; gold at the 2006 Commonwealth Games and 2008 EU Championships; and three ABA titles; all in the super-heavyweight division.
Andrés Ponce Ruiz Jr. is a Mexican-American professional boxer. He is a former unified world heavyweight champion, having held the World Boxing Association (WBA), International Boxing Federation (IBF), and World Boxing Organization (WBO) titles in 2019. He also held the International Boxing Organization (IBO) title during that reign.
Daniel Dubois is a British professional boxer. He has held the International Boxing Federation (IBF) heavyweight title since June 2024. Previously, he held the World Boxing Association (WBA) heavyweight title from 2022 to 2023. At regional level, he has held multiple heavyweight championships, including the British and Commonwealth titles from 2019 to 2020. As an amateur, he was a five-time national junior titlist and British champion.
Demsey McKean is an Australian professional boxer, former mixed martial arts fighter and former Muay Thai fighter.
Marcin Rekowski 
Andy Ruiz Jr. 
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Alvaro Morales