Carlos De León, also known as "Sugar" De Leon, was a Puerto Rican boxer who made history by becoming the first cruiserweight to win the world title twice. Subsequently, he kept breaking his own record for the most times as cruiserweight champion by regaining the title on two further occasions.
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.
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.
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.
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 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 second best Polish boxer of all time, pound for pound. He is the first Polish boxer to win a Ring title.
Monte Barrett 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.
Imamu Amiri Mayfield is an American professional boxer who competed from 1994 to 2008, and 2016 to 2017.
Bermane Stiverne is a Haitian-Canadian professional boxer. He held the WBC heavyweight title from 2014 to 2015.
Cristobal Arreola is an American professional boxer who has challenged three times for the WBC heavyweight title. He was ranked by BoxRec as the world's No.8 heavyweight at the conclusion of 2007 and as No.7 heavyweight from 2008 to 2010.
Deontay Leshun Wilder is an American professional boxer. He held the WBC heavyweight title from 2015 to 2020, making 10 successful defenses. By winning the title, Wilder became the first American world heavyweight champion since 2007, which was the longest period of time in boxing history without an American heavyweight champion. As of April 2023, he is ranked as the world's third-best active heavyweight by The Ring magazine, ESPN and the Transnational Boxing Rankings Board and fifth by BoxRec.
Dominic Angelo Breazeale is an American former professional boxer. He has challenged twice for heavyweight world titles; the IBF title in 2016 and the WBC title in 2019. As an amateur, he represented the United States at the 2012 London Olympics.
Krzysztof Głowacki is a Polish professional boxer who has held the WBO cruiserweight title twice; from 2015 to 2016 and again in 2019. As an amateur, he won a bronze medal in the super-heavyweight division at the 2008 EU Championships. As of June 2020, he is ranked as the world's fourth best active cruiserweight by The Ring magazine and third by the Transnational Boxing Rankings Board and BoxRec.
Joe Joyce is a British professional boxer. He held the WBO interim heavyweight title from 2022 to April 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. As an amateur, he won a bronze medal at the 2013 European Championships; gold at the 2014 Commonwealth and 2015 European Games; bronze at the 2015 World Championships; and silver at the 2016 Olympics.
Johann Duhaupas is a French professional boxer who challenged for the WBC heavyweight title in 2015. At regional level he has held multiple heavyweight titles, including the European Union title from 2013 to 2014.
Luis Ortiz is a Cuban professional boxer. He held the WBA interim heavyweight title from 2015 to 2016, and challenged twice for the WBC heavyweight title in 2018 and 2019. As an amateur, he won a silver medal at the 2005 Boxing World Cup. Nicknamed "King Kong", he is known for his formidable punching power and counterpunching skills. As of November 2021, he is ranked as the world's eighth-best active heavyweight by The Ring magazine and the Transnational Boxing Rankings Board.
Junior Ilunga Makabu is a Congolese-South African professional boxer. He held the WBC cruiserweight title from 2020 to 2023.
Trevor Cosmo Bryan Jr is an American professional boxer. He held the WBA (Regular) heavyweight title between 2021 and 2022.
Einar Otto Wallin is a Swedish professional boxer. He won the WBA Continental heavyweight title in 2017, the European Union heavyweight title in 2018, and the WBA Inter-Continental heavyweight title in 2023. As of November 2023, Wallin is ranked as the world's fourth best active heavyweight by Transnational Boxing Rankings Board, fifth by Boxrec, tenth by ESPN and tenth by The Ring magazine.
Demetrice King is an American former professional boxer who competed from 2003 to 2011. He holds a notable win over future world heavyweight champion Bermane Stiverne.
Gary Gomez is an American former professional boxer who competed from 2001 to 2011. On December 4, 2005, he won the WBC Continental Americas cruiserweight title, defeating the undefeated champion Chad Van Sickle. He lost the title to Charles Davis on July 21 of the next year.
Travis Kauffman