Nyorai kuenderera mberi kweiyi ndima - Demchenko akahwinawo menduru sere paFIL European Luge Championships negoridhe mana (Varume vega: 2006
, 2010; Mixed team: 2012, 2014), sirivha mbiri (Men's singles: 1996, 2008), uye bronze mbiri (Men's doubles: 1996; Mixed team: 2013).