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.
Mini flyweight, also known as strawweight, minimumweight or super atomweight, is a weight class in combat sports.
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 18 boxers to hold all four titles simultaneously.
In combat sports where champions are decided by a challenge, the lineal championship in a weight class represents an intangible world title initially held by the victor of a bout between top contenders in the division, as commonly interpreted. An alternative, less mainstream perspective suggests that vacancies in divisional championships can only be filled by an undisputed champion. A fighter who defeats the reigning champion in a match within that weight class becomes the next lineal champion. In professional boxing, the informal term for the lineal champion is "the man who beat the man."
In boxing, a weight class is a measurement weight range for boxers. The lower limit of a weight class is equal to the upper weight limit of the class below it. The top class, with no upper limit, is called heavyweight in professional boxing and super heavyweight in amateur boxing. A boxing match is usually scheduled for a fixed weight class, and each boxer's weight must not exceed the upper limit. Although professional boxers may fight above their weight class, an amateur boxer's weight must not fall below the lower limit. A nonstandard weight limit is called a catchweight.
Buster Douglas vs. Evander Holyfield, billed as "The Moment of Truth", was a professional boxing match contested on October 25, 1990, for the WBA, WBC, and IBF heavyweight championships. The bout took place at the Mirage in Paradise, Nevada, USA and saw Douglas making the first defense of the titles he won from Mike Tyson in February 1990.
Dmitry Yuryevich Bivol is a Russian professional boxer who has held the World Boxing Association (WBA) light heavyweight title since 2017 and the International Boxing Organization (IBO) title since December 2023. As an amateur, he won a gold medal at the 2013 World Combat Games in the 81 kg weight category. As of January 2024, Bivol is ranked as the world's sixth best active boxer, pound for pound, by BoxRec, fourth by the Transnational Boxing Rankings Board (TBRB), sixth by The Ring, seventh by the Boxing Writers Association of America and fourth by ESPN. He is also ranked as the second-ranked best light heavyweight by The Ring, ESPN, and TBRB, and first-ranked by BoxRec.
Murodjon Kakharovich Akhmadaliev is an Uzbekistani professional boxer. He is a former unified super-bantamweight champion, having held the WBA (Super), and IBF titles between 2020 and 2023. As an amateur, he won a silver medal at the 2015 World Championships and a bronze at the 2016 Olympics as a bantamweight. As of April 2021, he is ranked as the world's best active super-bantamweight by The Ring, fourth by BoxRec and second best by the Transnational Boxing Rankings Board.
Felix Pedro Alvarado Sanchez is a Nicaraguan professional boxer who held the IBF light flyweight title from 2018 to 2022. He previously challenged for the IBF flyweight title in 2022, the WBA (Regular) light flyweight title in 2013, and the WBA (Regular) flyweight title in 2014. As of January 2022, Alvarado is ranked as the world's best active light flyweight by The Ring, second best by BoxRec and third best by the Transnational Boxing Rankings Board. His twin brother, René Alvarado, is also a professional boxer.
In professional boxing and some other combat sports, a mandatory challenger is an opponent whom a champion must either fight or be forced to vacate their title as champion. The opposite of a mandatory defence is a voluntary defence, against an opponent who might offer greater revenue potential than a mandatory challenger.
Bridgerweight is a weight class in professional boxing used by the World Boxing Council (WBC) since 2020 and the World Boxing Association (WBA) since 2023. The division is for boxers weighing between 200 pounds and 224 pounds. The weight is named after six-year-old American Bridger Walker, who saved his four-year-old sister from a stray dog in July 2020.
Raquel Miller 
Lani Daniels 
Bolatito Oluwole 
Che Kenneally 
Vanessa Lepage Joanisse 
Oxandia Castillo 
Angie Paola Rocha 
Razel Mohammed 
Luiza Davydova 
Angelica López Flores 
Mwamba Benedict Lulua 
Tímea Nagy 
Szilvia Rafaelová 
Kimberly Labajo 
Savannah Marshall 
Femke Hermans 
Ema Kozin 
Christina Hammer 
Ivana Habazin 
Maria Lindberg 
Chris Namús 
Gifty Amanua Ankrah 
Florence Muthoni 
Visila Lagilagi 
Fabiana Bytyqi 
Saemi Hanagata 
Eva Guzman 
Teodora Bacheva 
