The World Boxing Organization (WBO) is an organization which sanctions professional boxing bouts. It is recognized by the International Boxing Hall of Fame (IBHOF) as one of the four major world championship groups, alongside the World Boxing Association (WBA), World Boxing Council (WBC), and International Boxing Federation (IBF). The WBO's headquarters are located in San Juan, Puerto Rico.
The International Boxing Organization (IBO) is a US based corporation that sanctions professional boxing matches and awards world and regional championships.
Heavyweight is a weight class in combat sports and professional wrestling.
In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all major organizations recognized by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, WBO, and IBF. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have been only 19 boxers to hold all four titles simultaneously.
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.
Dmitry Yurievich Pirog is a Russian politician and former professional boxer. In boxing he competed from 2005 to 2012, and held the World Boxing Organization (WBO) middleweight title from 2010 to 2012. Although his career was cut short due to a debilitating back injury, he is one of the few professional boxers to win a world championship and retire undefeated.
Below is a list of world heavyweight boxing championship records and statistics.
David Light is a New Zealand professional boxer. As an amateur, he competed in the men's heavyweight division at the 2014 Commonwealth Games in Glasgow where he won the silver medal against Canada's Samir El-Mais. Professionally, Light is a former WBO World Crusierweight title contender, where he fought Lawrence Okolie in March 2023.
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