Carlos Garcia Knight's friends and family gather for Big Air final

A very nervous mum and dad had their eyes glued to the TV on Saturday as they watched their son's final attempt at an Olympic medal in Pyeongchang.

Twenty-year-old Carlos Garcia Knight was the centre of attention in the room in Christchurch, which was full of friends and family.

But his second jump was one that would seal his fate on the Olympic stage. He crashed out in the first two runs of the day in the big air final, knocking himself out of medal contention.

Heading into the final, he had been the top qualifier.

"[We're] a little bit gutted but super proud," his mum, Jackie Garcia Knight, told Newshub.

"He will be gutted he didn't manage to do what he wanted to do, but I think he will be feeling very well too because he qualified top and showed what he can do."

The small room at his father's Christchurch restaurant was crammed with nervous friends and family watching back home.

"I usually send a text each day telling him he's got to get gold," his grandmother told Newshub.

It was a tight-knit group who came close to watching the Canterbury snowboarder become an Olympic champion.