The duo were last season's World Cup champions in the discipline, and the win is also significant for Kingsbury, who had not competed at an FIS event for almost 11 months because of the coronavirus pandemic and fracturing his T4 and T5 vertebrae.

On the final run, Kingsbury received the best turns score, air score and time to take victory ahead of Frenchman Benjamin Cavet in Utah.

The Canadian's final score was 88.10, with Cavet on 86.25 and Matt Graham of Australia third with 84.44.

On the women's side, France's Laffont was likewise the best-performing skier in all three point-scoring categories.

Laffont's final total - 83.24 - was well clear of the 80.94 scored by 16-year-old runner-up Anri Kawamura.

Kisari Sumiyoshi was third, meaning Japan took two of the three podium places.

Laffont has won all four women's World Cup moguls and dual moguls events so far this season, and with only two World Cup contest left has an unassailable lead in the standings.

The 22-year-old now has four overall moguls World Cup titles to her name.

Swede Ludvig Fjällström is the men's leader, on 222 points, but just 13 separate the top four.

Japan's Ikuma Horishima has 217, Cavet 211 and Graham 209.

There is a dual moguls World Cup scheduled tomorrow at the same venue. 

A dual moguls contest in Almaty in Kazakhstan on March 14 is then the last on this season's World Cup calendar.

Almaty will also stage this year's World Championships the same month.