Career
Light-Heavyweight
Change to Heavyweight
At the 2009 World Amateur Boxing Championships – Heavyweight he upset Clemente Russo and beat fellow southpaws Oleksandr Usyk in the semifinal and Osmay Acosta in the final. Change to Light-Heavyweight
Foreign the 2011 World Amateur Boxing Championships he traded weightclasses with Beterbiyev and dropped to light heavy. Turning professional
Mekhontsev turned professional in October 2013, signing with boxing promotion company Top Rank, which has also signed up a number of other 2012 olympic medallists.
Mekhontsev made his professional debut on December 7, 2013, dominating and knocking down opponent PJ Cajagas three times before the referee stopped the contest in the third round.