Gennady Golovkin holds the title of champion.
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 . Golovkin won his first major world championship , the WBA interim middleweight title , by defeating Milton Núñez in 2010 . He was elevated to WBA ( Regular ) champion in the same year , and in 2011 would win the vacant IBO middleweight title by defeating Lajuan Simon . The Transnational Boxing Rankings Board ( TBRB ) is an all-volunteer initiative formed in October 2012 with the intention of providing professional boxing with authoritative top-ten rankings , identifying the singular world champion of every division by unbiased reasoning and common sense , and to insist on the sport 's reform .