Julio César Chávez González, also known as Julio César Chávez Sr., is a Mexican former professional boxer who competed from 1980 to 2005. A multiple-time world champion in three weight divisions, Chávez was listed by The Ring magazine as the world's best boxer, pound for pound, from 1990 to 1993. During his career he held the WBC super featherweight title from 1984 to 1987, the WBA and WBC lightweight titles between 1987 and 1989, the WBC light welterweight title twice between 1989 and 1996, and the IBF light welterweight title from 1990 to 1991. He also held the Ring magazine and lineal lightweight titles from 1988 to 1989, and the lineal light welterweight title twice between 1990 and 1996. Chávez was named Fighter of the Year for 1987 and 1990 by the Boxing Writers Association of America and The Ring respectively.
The World Boxing Council (WBC) is an international professional boxing organization. It is among the four major organizations which sanction professional boxing bouts, alongside the World Boxing Association (WBA), International Boxing Federation (IBF) and World Boxing Organization (WBO).
Ken Buchanan was a Scottish professional boxer who competed between 1965 and 1982. He held multiple championships at lightweight; the World Boxing Association (WBA) and Ring magazine titles from 1970 to 1972; and the World Boxing Council (WBC) title in 1971, briefly reigning as undisputed champion until being stripped of the WBC title four months later. At regional level he held the British title twice in 1968 and 1973, and the European title from 1974 to 1975.
Pernell Whitaker Sr. was an American professional boxer who competed from 1984 to 2001, and subsequently worked as a boxing trainer. He was a four-weight world champion, having won titles at lightweight, light welterweight, welterweight, and light middleweight; the undisputed lightweight title; and the lineal lightweight and welterweight titles. In 1989, Whitaker was named Fighter of the Year by The Ring magazine and the Boxing Writers Association of America. He currently holds the longest unified lightweight championship reign in boxing history at six title defenses. Whitaker is generally regarded as one of the greatest defensive boxers of all-time.
In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all recognized major organisations by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, IBF and WBO. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have only been 19 boxers to hold all four titles simultaneously.
Junior Witter is a British former world champion professional boxer who competed from 1997 to 2015. He held the WBC light welterweight world title from 2006 to 2008 and challenged once for the IBF light welterweight title in 2000. At regional level, he held the British and Commonwealth light welterweight title from 2002 to 2005; the EBU European Union light welterweight title in 2003; and the EBU European light welterweight title from 2004 to 2005; and the British welterweight title in 2012.
Paul McCloskey is a former professional boxer from Northern Ireland who competed from 2005 to 2013. He held the British super-lightweight title from 2008 to 2009; the European super-lightweight title from 2009 to 2011; and challenged once for the WBA super-lightweight title in 2011. As an amateur, McCloskey won a silver medal in the welterweight division at the 2003 European Union Championships, and was an Irish Senior amateur champion.
Willie Limond was a Scottish professional boxer and footballer. He held the EBU European Union super featherweight title in 2004, the Commonwealth lightweight title from 2006 to 2007, the Commonwealth super lightweight title from 2013 to 2014, and the British super lightweight title in 2014.
Nigel Wright is a professional boxer, fighting out of Crook, County Durham. He is a southpaw fighter standing at 175 centimetres (69 in), with a record of 24-6-1, with 10 KOs and is a three-time English light welterweight champion and a two-time challenger for both the British and the Commonwealth titles.
Ricky Burns is a Scottish professional boxer. He is one of only three British boxers to have won world titles in three weight divisions and the first from Scotland, having held the WBO super-featherweight title from 2010 to 2011; the WBO lightweight title from 2012 to 2014; and the WBA light-welterweight title from 2016 to 2017. At regional level he held the Commonwealth super-featherweight title from 2008 to 2009, and has challenged for the British and European super-featherweight titles.
Colin Lynes is a British former professional boxer who competed from 1998 to 2017. He held the IBO super lightweight title from 2004 to 2005. At regional level, he held the British super lightweight title in 2007; the EBU European super lightweight title from 2007 to 2008; and the British welterweight title from 2011 to 2012.
David Barnes is a British former professional boxer who competed from 2001 to 2015. He held the British welterweight title from 2003 to 2004 and the British super lightweight title in 2008.
Jason Cook is a former professional boxer, who fought under the nickname "The Power". As an amateur, he won a silver medal for Wales at the 1994 Commonwealth Games. As a professional, he has fought as a lightweight, and has won both the European and IBO championships at the weight. He currently campaigns at Light-Welterweight, and fights out of Fight Academy Wales gym in Llanharan, South Wales under the guidance of professional coach Darren Wilson.
Lenny Daws is a British professional boxer. He held the British super lightweight title twice between 2006 and 2011, and the EBU European Union super lightweight title between 2012 and 2014.
Lucas Martín Matthysse is an Argentine former professional boxer who competed from 2004 to 2018. He held the WBA (Regular) welterweight title in 2018 and the WBC interim super lightweight title from 2012 to 2013. Matthysse was known for his aggressive pressure fighting style and formidable punching power. He is the younger brother of former featherweight world champion of boxing, Edith Soledad Matthysse.
Pat Thomas was a Light-middleweight boxer, originally from Saint Kitts and Nevis, who took British citizenship and won two British boxing titles in the 1970s and 80s. After leaving Saint Kitts, Thomas settled in Cardiff in Wales, and is recognised as a Welsh fighter taking the Welsh light middleweight Championship in 1977.
José Carlos Ramírez is an American professional boxer. He is a former unified champion at light welterweight, having held the World Boxing Council (WBC) title from 2018 to 2021 and the World Boxing Organization (WBO) title from 2019 to 2021. As an amateur he represented the United States at the 2012 Olympics. As of June 2020, he is ranked as the world's second best active light welterweight by The Ring and BoxRec, and third by the Transnational Boxing Rankings Board.
Ali Chebah is a French-Algerian professional boxer in the light welterweight division.
Josh Taylor is a Scottish professional boxer. He is a former undisputed super lightweight champion, having held the International Boxing Federation (IBF) and World Boxing Association (WBA) titles between 2019 and 2022, the World Boxing Council (WBC) title between 2021 and 2022, the World Boxing Organisation (WBO) title between 2021 and 2023 and the Ring magazine title between 2019 and 2023. At regional level, he held the Commonwealth light-welterweight title from 2016 to 2017. As an amateur, he won a lightweight silver medal at the 2010 Commonwealth Games and light-welterweight gold at the 2014 edition.
Chantelle Cameron is an English professional boxer. She is a former world champion in two weight classes, including the former undisputed light-welterweight champion, having held the WBC title between 2020 and 2023; the IBF and Ring magazine titles between 2021 and 2023 ; and the WBA and WBO titles between November 2022 and 2023. She previously held the IBO female lightweight title from 2017 to 2019 and light-welterweight title from 2022 to 2023.
Ivans Levickis
York Hall, Bethnal Green, London, United Kingdom
Henry Lundy 
Lucas Matthysse 
Ali Chebah