The 22-year-old Maderova enjoyed a comfortable victory over Ledecka's conqueror Sabine Payer, cruising to victory by 0.83 seconds.

Italy's Lucia Dalmasso took bronze.

Maderova was quickly in control of the final in Livigno and Austria's Payer remained untidy in the middle section of the course, unable to make up ground.

Ledecka crashed out in the quarter-finals as she chased what would have been a historic third straight Olympic gold in snowboarding.

The Czech star and other athletes are lobbying to keep parallel giant slalom on the Olympic programme, with the sport, introduced at Salt Lake City in 2002, facing an uncertain future.