It is the first time the sport has been included in the Olympic Games and, as the reigning world champion, O'Brien is poised to medal.
"I know that if I can put together my best run and land it, I have a really good chance at taking home gold," says O'Brien.
Every night for the next two weeks, CBC's Shane Foxman will profile a different B.C. athlete competing in this year's Games, in a new segment called "Ten To Watch."
Click the video above to see more of O'Brien's road to the Olympics.