Rubuta ci gaba don wannan sakin layi - 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 tseren farko a watan Disamba 2011. Viletta ya yi gasa a wasannin Olympics na 2010 a Vancouver da kuma gasar zakarun duniya a 2009, 2011 da 2013
Ka yi haƙuri. Ya lashe super hade a gasar Olympics ta 2014 a Sochi.