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 the last heavyweight to hold 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 after defeating Riddick Bowe in the final.
Gerald Arthur Cooney is an American former professional boxer who competed from 1977 to 1990, and challenged twice for world heavyweight titles in 1982 and 1987.
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 remains 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.
Buster Mathis was an American boxer.
Michael Lee Moorer is an American former professional boxer who competed from 1988 to 2008. He won a world championship on four separate occasions in two weight classes, having held the WBO light heavyweight title from 1988 to 1991; compiling 22 straight KOs in 22 fights and the WBO heavyweight title from 1992 to 1993; the unified WBA, IBF and lineal heavyweight titles in 1994; and regained the IBF heavyweight title again from 1996 to 1997 becoming a three-time heavyweight world champion.
Steffen Tangstad is a Norwegian retired professional boxer and two time European Heavyweight Champion.
Ronald David Lyle was an American professional boxer who competed from 1971 to 1980, and in 1995. He challenged unsuccessfully for the world heavyweight title, losing to Muhammad Ali in 1975. Lyle was known for his punching power, crowd-pleasing fighting style, as well as courage and determination inside the ring. He beat Buster Mathis, Oscar Bonavena, Jimmy Ellis, Vicente Rondón, Earnie Shavers, Joe Bugner, and Scott LeDoux, but is best known for his slugfest against George Foreman in 1976, which won Fight of the Year honors by The Ring magazine.
Wladimir Wladimirowitsch Klitschko is a Ukrainian former professional boxer who competed from 1996 to 2017. He held the world heavyweight championship twice, including the unified WBA (Super), IBF, WBO, IBO, and Ring magazine titles. A strategic and intelligent boxer, Klitschko is considered to be one of the best heavyweight champions of all time. He was known for his exceptional knockout power, using a strong jab, straight right hand and left hook, quick hand speed, athleticism, as well as great footwork and mobility, unusual for boxers of his size.
Theodore A. "Teddy" Atlas Jr. is an American boxing trainer and fight commentator.
Francois "Frans" Botha is a South African former professional boxer and kickboxer. In boxing he competed from 1990 to 2014, and is perhaps best known for winning the IBF heavyweight title against Axel Schulz in 1995, but was later stripped after failing a drug test. He later challenged twice for world heavyweight titles in 2000 and 2002. Botha has competed against former Heavyweight Champions Mike Tyson, Wladimir Klitschko, Lennox Lewis, Michael Moorer and Evander Holyfield late in their respective careers. Botha participated once in mixed martial arts in 2004.
Axel Schulz is a German former professional boxer who competed from 1990 to 1999, and in 2006. He challenged three times for both the IBF and European heavyweight titles. As an amateur he won a bronze medal at the 1989 World Championships and silver at the 1989 European Championships, both in the heavyweight division.
Frederick Steven Roach is an American boxing trainer and former professional boxer. Roach is widely regarded as one of the best boxing trainers of all time. He is the enduring boxing coach of the eight-division world champion Manny Pacquiao, five-time and four-division world champion Miguel Cotto, former WBC middleweight champion Julio César Chávez Jr., three-time world champion James Toney, former UFC middleweight and three-time welterweight champion Georges St-Pierre, as well as top prospects Jose Benavidez, Peter Quillin, and Vanes Martirosyan. Roach was the trainer of two-time women's world champion Lucia Rijker. He has also trained former light welterweight champion Amir Khan.
Robert Joseph Guerrero is an American professional boxer. He has held world championships in two weight classes, including the IBF featherweight title twice between 2006 and 2008, and the IBF junior lightweight title from 2009 to 2010. Additionally he has held multiple interim titles at lightweight and welterweight.
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 held the European Union heavyweight title from 2008 to 2009.
Oleksandr Oleksandrovych Usyk is a Ukrainian professional boxer. He is a world champion in two weight classes, having held the unified WBA (Super), IBF, WBO and IBO heavyweight titles since defeating Anthony Joshua in September 2021; and the undisputed cruiserweight title from 2018 to 2019, being the first cruiserweight champion to hold all four major world titles. He is widely regarded as one of the greatest Ukrainian boxers of all time. With his victory over Joshua, Usyk became one of only three boxers to have unified the cruiserweight world titles and become a world heavyweight champion, joining Evander Holyfield and David Haye.
Andrés Ponce Ruiz Jr. is a Mexican-American professional boxer. He is a former unified heavyweight champion, having defeated Anthony Joshua to win the WBA (Super), IBF, WBO, and IBO titles in 2019 to become the first male boxer of Mexican heritage to win a world heavyweight championship.
Keith Fitzgerald Thurman Jr. is an American professional boxer. He is a former unified welterweight world champion, having held the WBA title from 2015 to 2019, and the WBC title from 2017 to 2018. As of February 2022, he is ranked as the world's second best active welterweight by BoxRec.
Joseph Dennis Parker, OM, is a New Zealand professional boxer. He held the WBO heavyweight title from 2016 to 2018. At regional level, he has held multiple heavyweight championships, including the WBO Oriental, Africa, and Oceania titles; as well as the PABA, OPBF, and New Zealand titles. As an amateur, he represented New Zealand at the 2010 Commonwealth Games in the super-heavyweight division, and narrowly missed qualification for the 2012 Summer Olympics.
Anthony Victor James Yoka is a French professional boxer who has held the European heavyweight title since 2021. As an amateur he represented France at the 2015 World Championships and 2016 Olympics, winning gold medals in the super-heavyweight division.
Trevor Cosmo Bryan Jr is an American professional boxer who has held the WBA (Regular) heavyweight title since 2021.
Maurenzo Smith
Constellation Field, Sugar Land, Texas, U.S.
Francois Botha 
Boardwalk Hall, Atlantic City, U.S.
Connecticut Convention Center, Hartford, U.S.
David Defiagbon 
Cedarbridge Academy, Devonshire Parish, Bermuda 
Josué Blocus 
Caesars Palace, Las Vegas, Nevada, U.S.
Strawberry Field, Bridgehampton, New York, U.S.
Adam Flores