He had a very successful amateur career with 72 wins in 75 fights and won six national Armenian titles.
On November 28, 2008, Gevor beat Finn Amin Asikainen in his hometown of Helsinki by 7th-round knockout and won the European championship belt.
Gevor lost a controversial bout to WBA Middleweight Champion Felix Sturm by unanimous decision on July 11, 2009.
[1] On April 9, 2011, Gevor fought WBO Super Middleweight Champion Robert Stieglitz in a very competitive brawl.
The fight got more dirty in round ten when, after referee Manfred Küchler deducted a point from Gevor, both fighters wrestled each other onto the canvas.