Chris Corning led an American clean sweep of the podium at the International Ski Federation Snowboard Big Air World Cup in Milan.
The 18-year-old, who won big air silver and slopestyle bronze at this year's World Freestyle Ski and Snowboarding Championships in Sierra Nevada in Spain, achieved a big score of 182.75 on the purpose-built ramp in the heart of the Italian city.
Corning, who is also a triple junior world champion, carried over his good form from last season after he won the concluding slopestyle World Cup leg in Špindlerův Mlýn in the Czech Republic.
American dominance continued as Redmond Gerard scored 163.00 for silver and Kyle Mack managed 161.50 for bronze.
In the women's event, Austria's defending overall Big Air World Cup champion Anna Gasser claimed top honours.
The 26-year-old, who also bagged the world title in Sierra Nevada, reigned supreme on 160.25.
Britain's Katie Ormerod scored 143.25 for silver and Sina Candrian of Switzerland tallied 130.25 for bronze.
Chinese capital Beijing, the host of the 2022 Winter Olympics, will host the next leg of the Big Air World Cup on November 25.