Ikuma Horishima won his second World Cup men's moguls event of the season Thursday.
Horishima scored 89.17 points in Park City, Utah, to finish 1.8 points ahead of Pyeongchang Olympic champion Mikael Kingsbury of Canada. Sweden's Felix Elofsson was third with 81.18.
The 22-year-old Horishima claimed the sixth World Cup victory of his career and his first since winning in China in December.
While he took longer than Kingsbury to finish the course, Horishima pulled off a flawless performance that did not receive a single deduction for his turns by any of the five judges.
"I was really worried about competing here because I've never skied well on this course," Horishima said. "So I'm very glad I was able to win in such a difficult situation.
"I was able to execute even the small things in order to win."
In the women's competition, Olympic champion Perrine Laffont of Canada won her sixth straight World Cup event with 79.33 points. Australia's Jakara Anthony took second (78.49), while Canada's Justine Dufour-Lapointe was third (78.14).
Junko Hoshino was the highest-ranked Japanese at eighth (76.34).