The Grass Ski World Cup 2009 began on June 6th in Kendlgraben near Wilhelmsburg and ended on September 13th in Forni di Sopra . Three slaloms, four giant slaloms, two super Gs and two super combinations were held for women and men. The highlight of the season was the Grass Ski World Championship , which took place from September 2nd to 6th in Rettenbach , Austria .