Gennady Gennadyevich Golovkin, also referred to as ‘GGG,’ ‘God of War,’ and ‘Golden Boy,’ is a Kazakhstani professional boxer. Starting as an amateur, he went on to win a gold medal at the 2003 ‘World Amateur Boxing Championships’ in the middleweight division. He then won a silver medal in the same category at the 2004 ‘Summer Olympics.’ He became a pro in 2006 and his first major world championship win came in 2010 when he beat Milton Núñez to win the WBA interim middleweight title. Later that year, he became the WBA (Regular) champion. The following year, he defeated Lajuan Simon to win the vacant IBO middleweight title. He became the WBA (Super) champion in 2014 and succeeded in retaining the title as well as the IBO middleweight title against Daniel Geale. His winning spree continued and he went on to beat Marco Antonio Rubio in 2014 and David Lemieux in 2015 to win the WBC interim middleweight title and the IBF middleweight title respectively. He was elevated to the status of full champion when the WBC middleweight title was vacated by Canelo Álvarez in 2016. However, he was stripped of the title when he refused to fight Serhiy Derevianchenko in 2018. He is reputed for his discreet and tactful moves, powerful punches, and intelligence. He holds the unified IBO middleweight, WBC, WBA (Super), and IBF titles. His knockout percentage (89.7) is the highest in the history of middleweight championship. As of December 2019, the ‘Transnational Boxing Rankings Board’ (TBRB) and ‘The Ring’ magazine have ranked him second best middleweight boxer of the world, while ‘boxrec.com’ ranks him first. While taking pound for pound into consideration, ‘boxrec.com’ puts him in the third place, while ‘The Ring,’ ESPN, and TBRB puts him in seventh, seventh, and sixth places respectively.