Antonio Margarito Montiel is a Mexican-American former professional boxer who competed between 1994 and 2017. He held multiple welterweight world championships, including the WBO title from 2002 to 2007, the IBF title in 2008, and the WBA (Super) title from 2008 to 2009. He also challenged three times for a light middleweight world title between 2004 and 2011. Nicknamed El Tornado de Tijuana, Margarito was known for his aggressive pressure fighting style and exceptionally durable chin.
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.
Avetik Abrahamyan, best known as Arthur Abraham, is an Armenian-German former professional boxer who competed from 2003 to 2018. He held multiple world championships in two weight classes, including the IBF middleweight title from 2005 to 2009, and the WBO super-middleweight title twice between 2012 and 2016.
Hassan N'Dam N'Jikam is a French Cameroonian professional boxer. He has held two middleweight world championships; including the WBO title in 2012 and the WBA (Regular) title in 2017, and has challenged once for a super-middleweight world title in 2019.
Erislandy Lara Santoya is a Cuban-American professional boxer who is the current WBA middleweight champion, having held the title since 2021. He has held multiple world championships in two weight classes. Previously he held various versions of the WBA light middleweight title between 2014 and 2021, and the IBO light middleweight title twice between 2015 and 2021. As of May 2022, Lara is ranked as the world's fifth-best active middleweight by BoxRec.
Demetrius Cesar Andrade is an American professional boxer. He has held multiple world championships in two weight classes, at light middleweight and middleweight. As an amateur, he won the U.S. national championships and Golden Gloves twice each, a gold medal at the 2007 World Championships, and represented the U.S. at the 2008 Olympics; all in the welterweight division.
Daniel Jacobs is an American former professional boxer who competed from 2007 to 2024. He held the World Boxing Association (WBA) middleweight title from 2014 to 2017, and the International Boxing Federation (IBF) middleweight title from 2018 to 2019. Nicknamed the "Miracle Man", Jacobs' career was almost cut short in 2011 due to osteosarcoma, a rare form of bone cancer. He went on to make a full recovery after spending 19 months out of the sport, meanwhile recovering from severe operation-induced injuries generally perceived as crippling.
Jürgen Brähmer is a German professional boxer, who held the WBO title from 2009 to 2011, and the WBA (Regular) title from 2013 to 2016.
Ryōta Murata is a Japanese former professional boxer who competed from 2013 to 2022. He held the WBA (Regular) middleweight title twice between 2017 and 2021, and the WBA (Super) middleweight title from 2021 to 2022. As an amateur, he won a silver medal at the 2011 World Championships, and gold the following year at the 2012 Olympics.
Callum John Smith is an English professional boxer. He held the World Boxing Association (WBA) and Ring magazine super-middleweight titles from 2018 to 2020. At regional level, he held the British and European super-middleweight titles between 2015 and 2017. In 2018 he won the World Boxing Super Series super-middleweight tournament, winning the Muhammad Ali trophy in the process. He is the youngest of the Smith brothers—Paul, Stephen, and Liam—all of whom are professional boxers.
Janibek Alimkhanuly is a Kazakh professional boxer and unified middleweight champion who has held the WBO title since 2022, and the IBF title since October 2023. As an amateur, he won gold medals at the 2013 World Championships, 2013 Asian Championships and 2014 Asian Games. He also represented Kazakhstan at the 2016 Summer Olympics in the middleweight division, losing in the quarter-finals. He won the WBO Interim middleweight title on May 21, 2022, before being elevated to full champion on August 30, 2022, and he then won the IBF title on October 14, 2023.
Haxhi Krasniqi, known as Robin Krasniqi, is a German professional boxer. He held the International Boxing Organization (IBO) light-heavyweight title from 2020 to 2021, the World Boxing Association (WBA) interim light-heavyweight title from 2020 to 2021, and the European super-middleweight title from 2018 to 2019.
Gervonta Bryant Davis, also known by his nickname "Tank", is an American professional boxer. He has held the World Boxing Association (WBA) lightweight title since 2023, having previously held the Regular version from 2019 to 2023. He also held the International Boxing Federation (IBF) super featherweight title in 2017, the WBA super featherweight title twice between 2018 and 2020, and the WBA super lightweight title in 2021.
The 2017–18 World Boxing Super Series – super middleweight division was a World Boxing Super Series professional boxing tournament taking place between September 2017 and September 2018 in several countries. The Super Series features 8 top-rated super middleweight boxers in a single-elimination tournament. Its winner will hold the WBA's world title, The Ring Magazine title, as well as the Muhammad Ali trophy. The tournament was organized by Comosa AG. A cruiserweight tournament is held concurrently, with prize money for both competitions totalling US$50 million.
Brian Carlos Castaño is an Argentine professional boxer. He held the WBO light middleweight title between 2021 and 2022 and previously held the WBA interim light middleweight title from 2016 to 2018, and the WBA (Regular) light middleweight title from 2018 to 2019.
Jürgen Brähmer vs. Robert Brant was a professional boxing match contested on 27 October 2017.
Khuseyn Uwaisovich Baysangurov is a Russian professional boxer. He held the WBA Continental (Europe) and the IBF International light-middleweight titles from 2017 to 2018.
Kamil Szeremeta is a Polish professional boxer who held the European middleweight title from 2018 to 2019. As of June 2020, he is ranked as the world's seventh best active middleweight by The Ring and eighth by the Transnational Boxing Rankings Board.
Gennady Golovkin vs. Ryōta Murata, billed as Big Drama in Japan, was a middleweight unification professional boxing match contested between IBF and IBO champion, Gennady Golovkin and WBA (Super) champion, Ryōta Murata. The bout took place at Saitama Super Arena, Saitama, Japan on April 9, 2022.
Vincenzo Gualtieri is a German professional boxer. He held the International Boxing Federation (IBF) middleweight title from July 2023 to October 2023.
Janibek Alimkhanuly 
Virgin Hotels Las Vegas, Paradise, Nevada, U.S.
Vitalii Kopylenko
Ryōta Murata 
Jürgen Brähmer 
Ernesto Berrospe
Dionisio Miranda