Gennady Golovkin is a middleweight boxer.
Gennady Gennadyevich Golovkin ( Геннадий Геннадьевич Головкин born 8 April 1982 ) is a Kazakhstani professional boxer who currently holds the unified WBA ( Super ) , WBC , IBF , and IBO middleweight titles . An interim championship is an alternate title that is awarded by the four major sanctioning bodies of professional boxing ( WBA , WBC , IBF , and WBO ) , and in other combat sports such as kickboxing and mixed martial arts .