Dee ihe na-aga n'ihu maka paragraf a - Demchenko meriri ọla asatọ na FIL European Luge Championship na ọla edo anọ (Ndị nwoke na-alụbeghị di: 2006
, 2010; Mixed team: 2012, 2014), ọlaọcha abụọ (Men's singles: 1996, 2008), na ọla nchara abụọ (Men's doubles: 1996; Mixed team: 2013).