Rubuta ci gaba don wannan sakin layi - Demchenko ya kuma lashe lambobin yabo takwas a gasar zakarun Turai ta FIL tare da zinare huɗu (Mutum daya: 2006, 2010; Mixed team: 2012, 2014), azurfa biyu (Mutum daya: 1996
, 2008), da tagulla biyu (Maza biyu: 1996; Mixed team: 2013).