Heavyweight is a weight class in combat sports and professional wrestling.
Mini flyweight, also known as strawweight, minimumweight or super atomweight, is a weight class in combat sports.
Ricardo López Nava is a Mexican former professional boxer who competed from 1985 to 2001. He was a two-weight world champion, having held the WBC mini flyweight title from 1990 to 1998, defending it against a record-breaking 21 opponents; the WBA and WBO mini flyweight titles between 1997 and 1998; and the IBF junior flyweight title from 1999 until his retirement in 2001. He is one of just fifteen world boxing champions to retire without a loss. He is the father of undefeated former boxer Alonso López.
Brian Viloria is a retired American professional boxer of Filipino descent. He is a former unified WBA and WBO flyweight champion, as well as a former WBC and IBF light flyweight champion. His nickname of "The Hawaiian Punch" was first given to him by Jesus Salud, a fellow Hawaiian of Filipino descent and himself a former world champion in boxing.
Rosendo José Álvarez Hernández is a Nicaraguan retired professional boxer. He is a former two-division champion and is well known for giving Mexican legend Ricardo López two tough fights. He is the only person to hold the undefeated strawweight champion to a draw.
Irene Pacheco, also known as Mambaco, is a Colombian former professional boxer who competed from 1993 to 2007. He held the IBF flyweight title from 1999 to 2004 and challenged for the WBO bantamweight title in 2007.
Donnie Liboon Nietes is a Filipino professional boxer. He is a world champion in four weight-classes, having previously held the WBO mini-flyweight title from 2007 to 2011; the WBO and The Ring magazine junior-flyweight titles between 2011 and 2016; IBF flyweight title from 2017 to 2018; and the WBO junior-bantamweight title from 2018 to 2019. He is the longest-reigning Filipino boxing world champion, surpassing in 2014 the record set in 1967 by Boxing Hall of Fame inductee Gabriel "Flash" Elorde. He was one of the first three Asian fighters with world titles in at least four weight classes alongside fellow Filipinos Manny Pacquiao and Nonito Donaire.
Melchor Cob Castro is a Mexican former professional boxer in the light flyweight division.
In different sports when a sportsman wins seven crowns, titles, medals, belts or another distinctions is called a Septuple Champion.
John Riel Reponte Casimero is a Filipino professional boxer and YouTuber. He has held world championships in three weight classes; including the IBF junior-flyweight title from 2012 to 2013; the IBF flyweight title in 2016; and the WBO bantamweight title from 2019 to 2022. Quadro Alas is Tagalog for four of a kind when translated, his moniker means Four Aces.
Kazuto Ioka is a Japanese professional boxer. He is the first male Japanese boxer and fourth Asian to be a four-weight world champion, having held the unified WBA and WBC mini-flyweight titles between 2011 and 2012, the WBA (Regular) light-flyweight title from 2012 to 2014, the WBA flyweight title from 2015 to 2017, and the WBO super-flyweight title from 2019 to 2023. As of December 2020, he is ranked as the world’s fourth-best active super-flyweight by BoxRec, and third by The Ring magazine and the Transnational Boxing Rankings Board. He is also ranked as the world's ninth-best boxer, pound for pound, by The Ring.
Josué Camacho Santiago is a Puerto Rican who was a world boxing champion. He was born in Guaynabo, Puerto Rico. His nickname is Dickie, and he was sometimes advertised as Dickie Camacho.
Zolani Tete is a South African professional boxer. He is a former two-weight world champion, having held the IBF junior-bantamweight title from 2014 to 2015 and the WBO bantamweight title from 2017 to 2019.
Kosei Tanaka is a Japanese professional boxer. He is a three-weight world champion, having held the WBO mini-flyweight title from 2015 to 2016; the WBO junior-flyweight title from 2016 to 2017; and the WBO flyweight title from 2018 to 2020. Upon winning his first world title in only his fifth bout, he became the fastest Japanese fighter ever to become a world champion. Along with Vasyl Lomachenko, he is also the fastest ever fighter to win titles in three weight-classes, having accomplished the feat in only 12 bouts.
Juan Alejo is a Mexican professional boxer. He challenged for the WBO light flyweight title in 2015 and 2017.
Ryuya Yamanaka is a Japanese professional boxer who held the WBO mini-flyweight title from 2017 to 2018.
Wilfredo Méndez is a Puerto Rican professional boxer who has held the WBO mini flyweight title between August 2019 to December 2021.
Etsuko Tada is a Japanese professional boxer. She is a former four-time mini-flyweight world champion, having held the WBA title from 2009 to 2013; the IBF title from 2015 to 2017; and the WBO title twice between 2018 and October 2021.
