Golovkin ranks first in WBC rankings
Martin Murray is second and David Lemieux - third.
Golovkin shot the top of the October rankings of the World Boxing Council, BNews.kz correspondent reports referring to Zakon.kz.
According to the Organization's website, alongside GGG the top-3 also includes Martin Murray in second place and Canadian David Lemieux in third.
This Organization's middleweight champion belt is owned by Mexican Saul 'Canelo' Alvarez. American Jermell Charlo is a compulsory contender.