Career
He is currently playing with Traktor Chelyabinsk of the Kontinental Hockey League (KHL). Kostromitin made his Kontinental Hockey League debut playing with Admiral Vladivostok during the 2013-2014 season.
He is currently playing with Traktor Chelyabinsk of the Kontinental Hockey League (KHL). Kostromitin made his Kontinental Hockey League debut playing with Admiral Vladivostok during the 2013-2014 season.
