Redmond Gerard in his final run at the 2018 Winter Olympic Games in Pyeongchang, South Korea. (Photo: Xinhua)

Seventeen-year-old teenager Redmond Gerard won the US' first gold medal at the Pyeongchang Winter Olympics in men's snowboard slopestyle.

Medal finishers pose after the awarding ceremony.

He scored 87.16 points against rival Max Parrot, who picked up a silver, with Mark McMorris taking third.

Gerard holds a US flag after winning the gold medal.

"I was really happy when I saw I came in as first," said Gerard.

Gerard holds the Pyeongchang Olympics mascot Soohorang and waves at the crowd.