Kammala jumla mai zuwa: Daga ƙauyen La Punt Chamues-ch, kusa da St. Moritz a cikin canton na Graubünden, ya fara gasar cin kofin duniya a watan Nuwamba 2006 kuma ya lashe tserensa na farko a watan Disamba 2011. Viletta ya yi gasa a wasannin Olympics na hunturu na 2010 a Vancouver da kuma a Gasar Cin Kofin Duniya a 2009, 2011 da
A shekara ta 2013. Ya lashe super hade a gasar Olympics ta 2014 a Sochi.