Anthony Steven Mundine is an Australian former professional boxer and rugby league footballer. In boxing he competed from 2000 to 2021, and held the WBA super-middleweight title twice between 2003 and 2008. He also held the IBO middleweight title from 2009 to 2010, and the WBA interim super-welterweight title from 2011 to 2012. Mundine is well known for his heated rivalries with fellow Australians Danny Green and Daniel Geale.
Jermain Taylor is an American former professional boxer who competed from 2001 to 2014. He remains the most recent undisputed middleweight champion, having won the WBA (Undisputed), WBC, IBF, WBO, and The Ring middleweight titles in 2005 by beating Bernard Hopkins, and in doing so ending Hopkins' ten-year reign as middleweight champion. This made Taylor the first, and to date, only male boxer in history to claim each title from all four major boxing sanctioning organizations in a single fight. He once again defeated Hopkins six months later, making him the only fighter to have defeated Hopkins twice. He retired as a world champion in the months that followed his capture of the IBF middleweight title for a second time, after making a substantial recovery from a brain injury sustained earlier in his career.
Gennadiy Gennadyevich Golovkin, often known by his nickname "GGG" or "Triple G", is a Kazakhstani professional boxer. He has held multiple middleweight world championships, and is a two-time former unified champion. He held the World Boxing Association (WBA), World Boxing Council (WBC) and International Boxing Federation (IBF) titles at varying points between 2014 and 2023, and challenged once for the undisputed super middleweight championship in 2022. He is also a former International Boxing Organization (IBO) middleweight champion, having held the title twice between 2011 and 2023.
Clinton Woods is a British former professional boxer who competed from 1994 to 2009, and held the IBF light-heavyweight title from 2005 to 2008. At regional level he held the Commonwealth super-middleweight title from 1997 to 1998, the British light-heavyweight title from 1999 to 2000, and the European and Commonwealth light-heavyweight titles from 1999 to 2001.
Adnan Ćatić, known as Felix Sturm, is a Bosnian-German professional boxer. He has held multiple world championships in two weight classes, at middleweight and super-middleweight. As an amateur, he won a gold medal at the 2000 European Championships in the light-middleweight division.
Carl Martin Froch, is a British former professional boxer who competed from 2002 to 2014, and has since worked as a boxing analyst and commentator. He held multiple super-middleweight world championships, including the World Boxing Council (WBC) title twice between 2008 and 2011, the International Boxing Federation (IBF) title from 2012 to 2015, and the World Boxing Association (WBA) title from 2013 to 2015. At regional level, he held the British and Commonwealth super-middleweight titles between 2004 and 2008, and won the Lonsdale Belt in 2006. As an amateur, in the middleweight division, Froch won a bronze medal at the 2001 World Championships, and the ABA title twice.
Matthew Macklin is a British-Irish former professional boxer who competed from 2001 to 2016, and has since worked as a boxing manager and commentator. He challenged three times for middleweight world titles between 2011 and 2013, and held multiple regional championships at that weight: the Irish title from 2005 to 2006, the British title in 2009, and the European title from 2009 to 2011.
Daniel Geale is an Australian former professional boxer who competed from 2004 to 2016. He held the unified WBA (Super) and IBF middleweight titles between 2011 and 2013, and the IBO middleweight title from 2007 to 2009. As an amateur boxer, Geale won a welterweight gold medal at the 2002 Commonwealth Games.
Wayne Elcock is a British former professional boxer who competed from 1999 to 2009. He challenged once for the IBF middleweight title in 2007. At the regional level, he held the British middleweight title from 2007 to 2009.
Sergio Gabriel Martínez is an Argentine professional boxer. He has held world championships in two weight classes, including the WBC super welterweight title from 2009 to 2010; and the unified WBC, WBO, Ring magazine and lineal middleweight titles between 2010 and 2014. With six successful defenses of The Ring and lineal middleweight titles, Martínez's 50-month reign as champion ranks as one of the longest in the history of that weight class.
Joseph William Calzaghe is a Welsh former professional boxer who competed from 1993 to 2008. He held multiple world championships in two weight classes, including unified and lineal titles at super-middleweight, and the Ring magazine light-heavyweight title.
James Frederick DeGale is a British former professional boxer who competed from 2009 to 2019. He held the IBF super-middleweight title twice between 2015 and 2018, and regionally the European and British super-middleweight titles between 2010 and 2012.
Lee Haskins is a British former professional boxer who competed between 2003 and February 2020. He held the IBF bantamweight title from 2015 to 2017, and the IBF interim title in 2015. At regional level, he held the Commonwealth flyweight title in 2006; the British super-flyweight title from 2008 to 2009; the Commonwealth super-flyweight title in 2009; the British bantamweight title in 2013; and the European bantamweight title twice between 2012 and 2015.
George Groves is a British former professional boxer who competed from 2008 to 2018. He held the WBA (Super) super-middleweight title from 2017 to 2018. At regional level, he held multiple super-middleweight titles, including the European, British, and Commonwealth titles between 2010 and 2014. As an amateur, Groves won the ABA middleweight title twice in 2007 and 2008.
Osumamu Adama is a Ghanaian professional boxer in the middleweight division, and the first middleweight titleholder from Ghana.
Sergio Martínez vs. Darren Barker, billed as No Fear. No Mercy., was a professional boxing match contested on October 1, 2011 for the The Ring middleweight championship.
Lee Selby is a retired Welsh former professional boxing world champion who competed from 2008 to 2022. He held the IBF featherweight title from 2015 to 2018, and previously the British, Commonwealth, and European featherweight titles between 2011 and 2014.
Stephen Simmons is a Scottish former professional boxer who competed from 2011 to 2018. He held multiple regional championships at cruiserweight, including the WBC International Silver title from 2013 to 2015 and the IBF European title in 2017. He also challenged for the British cruiserweight title in 2018.
Joe Cordina is a Welsh-Maltese professional boxer. He is a two-time super-featherweight world champion, having held the International Boxing Federation (IBF) title since April 2023 and previously in 2022. At regional level, he held the British and Commonwealth lightweight titles between 2018 and 2019. As an amateur, he won a bronze medal at the 2014 Commonwealth Games and gold at the 2015 European Championships, both in the lightweight division. He also represented Great Britain at the 2016 Summer Olympics.
Jason Welborn is an English professional boxer who challenged once for the unified WBA (Super), IBF and IBO light-middleweight titles in 2018. At national level, he held the British middleweight title in 2018, and challenged for the British welterweight and light middleweight titles in 2013 and 2014 respectively, and the Commonwealth light-middleweight and middleweight titles in 2019 and 2020 respectively.
