Justine Dufour-Lapointe and her sister Chloe won Olympic gold and silver for Canada after edging American rival Hannah Kearney in the women's moguls on Saturday.
Justine Dufour-Lapointe, the youngest of the sisters at 19, went through a technically precise final run to score 22.44 points and help Canada win its first gold of the games.
Her 22-year-old sister followed with a solid run but came up .78 points short of the winning score.
Kearney, the defending champion and top-ranked woman in the world, went last and had a big bobble after her first jump. She settled for bronze.