Wili has been participating in FIS and AFP World Tour competitions since 2015 . At the beginning of the 2015/16 season he won his first Slopestyle victory at the Swiss Freeski Open in Glacier 3000 . At the 2016 Winter Youth Olympic Games in Lillehammer , he came 11th in slopestyle. In March 2016, he came third in slopestyle at the Swiss Freeski Open in Crans-Montana . The following month he was second in both Slopestyle and Big Air at the European Cup and the Swiss Championships in Silvaplana . At the beginning of the 2016/17 season he made his debut in Mönchengladbach in the Freestyle Skiing World Cup and finished 29th in Big Air. This was followed by 16th place in the slopestyle competition in Font Romeu . At the World Cup on the Alpe di Siusi at the end of January 2017, he achieved his first podium finish in the World Cup with second place in slopestyle. In March 2017 he won the European Cup in Livigno twice and came second in the Slopestyle classification. He was also seventh in the Slopestyle World Cup in Silvaplana and third in the Slopestyle World Cup at the end of the season. At the Freestyle Skiing World Championships 2017 in Sierra Nevada , he came in 28th place in Slopestyle.
Switzerland