Nagdaog usab si Demchenko og walo ka medalya sa FIL European Luge Championships nga adunay upat ka bulawan (Men's singles: 2006, 2010; Mixed team: 2012, 2014), duha ka pilak (Men's singles: 1996
, 2008), ug duha ka bronse (Men's doubles: 1996; Mixed team: 2013).