Kosei Tanaka makes history as the first male boxer to win the WBO title in four divisions

Kosei Tanaka makes history as the first male boxer to win the WBO title in four divisions.

With his unanimous decision victory over Christian Bacasegua last Saturday, Kosei Tanaka won the WBO Super Flyweight (115 lb.) title and become the first male pugilist to win the WBO crown in four different weight divisions. Tanaka previously held the WBO title at Mini Flyweight (105 lbs.), Junior Flyweight (108 lbs.) and Flyweight (112 lbs.).

The charismatic Japanese fighter joined female World Champion Amanda Serrano as the only two fighters to achieve this. Serrano currently reigns as the WBO Female Featherweight (126 lbs.) Champion. She has previously held the WBO title at Super Flyweight (115 lbs.), Bantamweight (118 lbs.), Junior Featherweight (122 lbs.), Lightweight (135 lbs.) and Junior Welterweight (140 lbs.) titles.

The elite three-division WBO Champions’ Club includes current pound-for-pound kings Terrence Crawford and Naoya Inoue, superstar Saúl ‘Canelo’ Álvarez, hall of famers Oscar De La Hoya, Miguel Ángel Cotto and Juan Manuel Marquez, as well as current champ Emanuel Navarrete and former kings Jorge Arce and Fernando Montiel.