Duvillard's World Cup career lasted from its inception in 1967 until 1973, during which time he won six races, including the prestigious Lauberhorn downhill in Wengen, Switzerland. His best results came in 1971 and 1972, when he finished second in the overall standings, behind the legendary Gustav Thöni in consecutive seasons.
Troubles with the French national team leadership led him to retire from World Cup competition, and he moved on to the United States. In November 1974, Duvillard joined the U.S. pro tour and finished second (to American Hank Kashiwa) for the 1975 season (Duvillard won more money, but Kashiwa won on points). Duvillard dominated the tour in 1976, and became the pro champion at age 28. 
After retiring from competition, Duvillard launched an eponymous French skiwear label.
World Cup victories
6 total wins (3 downhill, 2 giant slalom, 1 slalom)
|January 21, 1969||Megève||Downhill|
|January 10, 1970||Wengen||Downhill|
|December 13, 1970||Sestriere||Downhil|
|January 9, 1971||Madonna di Campiglio||Giant Slalom|
|January 9, 1972||Berchtesgaden||Slalom|
|January 19, 1973||Megève||Giant Slalom|