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 is the only boxer in history to win the undisputed championship in two weight classes in the three 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.
Leon Spinks was an American professional boxer who competed from 1977 to 1995. In only his eighth professional fight, he won the undisputed heavyweight championship in 1978 after defeating Muhammad Ali in a split decision, in what is considered one of the biggest upsets in boxing history. Spinks was later stripped of the WBC title for facing Ali in an unapproved rematch seven months later, which he lost by a unanimous decision.
Antonio Deon Tarver is an American former professional boxer and boxing commentator. In boxing he competed from 1997 to 2015, and held multiple light heavyweight world championships, including the WBA (Unified), WBC, IBF and Ring magazine titles, as well as the IBO light heavyweight and cruiserweight titles.
Glengoffe Donovan Bartholomew Johnson is a Jamaican former professional boxer who competed from 1993 to 2015. He held the IBF, IBO and Ring magazine light heavyweight titles between 2004 and 2005, and challenged once each for world titles at middleweight and super middleweight.
Chad Dawson is an American former professional boxer who competed from 2001 to 2019. He held multiple world championships in the light heavyweight division, and was one of that division's most highly regarded boxers between 2006 and 2013.
Tomasz "Tomek" Adamek is a Polish former professional boxer who competed from 1999 to 2018. He held world championships in two weight classes, including the WBC light heavyweight title from 2005 to 2007, and the IBF and The Ring magazine cruiserweight titles from 2008 to 2009. He also held the IBO cruiserweight title in 2007, and challenged once for the WBC heavyweight title in 2011. BoxRec ranks Adamek as the third greatest Polish boxer of all time, pound for pound. He is the first Polish boxer to win The Ring title.
Torsten May is a former German boxer, who won the Light Heavyweight Gold medal at the 1992 Summer Olympics. He challenged once for the IBF cruiserweight championship in 2006.
Simon Brown is a former professional boxer. Known as "Mantequilla", a name given to him by his famous trainer Jose 'Pepe' Correa, Brown was two-weight world champion in the welterweight and light-middleweight divisions, and at one point considered one of the best pound-for-pound fighters in boxing.
Tavoris Karod Cloud is an American professional boxer who held the IBF light heavyweight title from 2009 to 2013.
Nathan Cleverly is a retired Welsh former professional boxing world champion who competed from 2005 to 2017. He is a two-time light-heavyweight world champion, having held the WBO title from 2011 to 2013, and the WBA (Regular) title from 2016 to 2017. Additionally he held multiple regional light-heavyweight championships, including the European, British, and Commonwealth titles between 2008 and 2010.
Ovill McKenzie is a Jamaican-born British former professional boxer who competed from 2003 to 2015. He challenged once for the IBF cruiserweight title in 2015. At regional level, he held the Commonwealth light heavyweight title twice between 2006 and 2013, and the British and Commonwealth cruiserweight titles from 2014 to 2015.He has now had 1 fight in the Commonwealth cruiserweight Division and fought Jessiah Johnson and lost the bout via split decision.
Bernard Hopkins Jr. is an American former professional boxer who competed from 1988 to 2016. He is one of the most successful boxers of the past three decades, having held multiple world championships in two weight classes, including the undisputed middleweight title from 2001 to 2005, and the lineal light heavyweight title from 2011 to 2012.
Alfonso López III is an American professional boxer of Mexican descent. López fights out of Houston, Texas, raised out of Cut & Shoot, Texas. He currently holds the WBC-NABF bridgerweight title in 2021-22. He has held the WBC-NABF light heavyweight title since 2019, also former WBC-Continental Americas super middleweight title in (2010) and the WBO-NABO light heavyweight title in (2019). As of September 1, 2022, López is ranked 6th in the World in the WBC rankings.
Oleksandr Serhiyovych Gvozdyk is a Ukrainian professional boxer. He held the WBC and lineal light-heavyweight titles from 2018 to 2019. As an amateur, Gvozdyk won a bronze medal at the 2012 Olympics and a gold at the 2013 Summer Universiade.
Sergey Alexandrovich Kovalev is a Russian professional boxer. He has held multiple light-heavyweight world championships, including the WBA (Undisputed) and IBF titles from 2014 to 2016, and the WBO title three times between 2013 and 2019. Nicknamed the "Krusher", Kovalev is particularly known for his exceptional punching power, although he describes himself as "just a regular boxer".
Joe Joyce is a British professional boxer. He held the World Boxing Organization (WBO) interim heavyweight title from 2022 to 2023. At regional level, he has held multiple heavyweight championships, including the Commonwealth title twice between 2018 and 2021; the British title from 2020 to 2022; and the European title from 2020 to 2021.
Fedor Chudinov is a Russian professional boxer. He held the WBA (Super) super-middleweight title in 2016, having previously held the regular title from 2015 to 2016 and the interim title from 2014 to 2015. He is the brother of fellow boxer Dmitry Chudinov.
Sullivan Barrera is a Cuban professional boxer. As an amateur, he won the middleweight gold medal at the 2000 AIBA Junior World Championships. He challenged once for the WBA light heavyweight title in 2018.
Joe Smith Jr. is an American professional boxer. He held the WBO light heavyweight title from 2021 to 2022. In 2016, Smith became the first boxer to score a stoppage victory over former undisputed middleweight world champion Bernard Hopkins, who retired after their fight.
Boriss Lesins
Gymnase Trintignant, Uzes, Gard, France
Vladimir Shishkin 
Roman Shkarupa
