Koschkin contested his first international race on March 4, 2009 at an FIS giant slalom in Krasnoyarsk . In 2011 and 2013 he took part in the World Cup. He made his World Cup debut in December 2012 in the Super-G of Val Gardena . In 2014 he took part in the Olympic Games . His best result was 30th place in the Super-G.