By
As he prepares to attempt to win a first Olympic title in Pyeongchang next month, Hirscher looked in dominant form timing 51.03sec, which was 0.35sec ahead of Andre Myhrer of Sweden with Norway's Henrik Kristoffersen third.
Hirscher, 28, has already won in Adelboden, Zagreb, Madonna di Campiglio and Val d'Isere this season.
He had to settle for silver in the slalom at the 2014 Sochi Olympics.