WHO is Seth Westcott? WHO did he beat to win the gold medal in the Men’s Snowboard Cross Final?

American snowboarder. He beat Mike Robertson.

WHAT did he do before the event that showed his confidence that he would win?

He packed his lucky flag.

was this event raced?
WHEN did he previously win a gold medal?
WHY did some wonder if he could successfully defend his gold this year? WHY do you think he triumphed?