Billy Morgan finished tenth after becoming the first Sotonian to reach a Winter Olympic final.
He delighted the Sochi crowd on the first official day of the Games, using his repertoire of tricks to earn a place in the 12-man final before his second and final run.
But he was under pressure from the start of the final after falling on his first run.
Billy was eighth at midway and after an encouraging start to his second run, he finished with a best score of 39.75 when he attempted a 'Double 1080'.
"It was a case of go big or go home - if I landed it maybe I'd have got on the podium so I just thought huck it!" he said, before tweeting: "So happy with today. Getting through was crazy. Wanted to do the best run I could and did my best. Hope I made the GB proud.
"Riding today was crazy. Speaking to people about the finals saying that it was the best sporting show ever. Absolutely pumped."
Dad Eddie said: "We're all really proud of Billy, I didn't expect him to get so far. I've never been so nervous. His grandma, Shirley, couldn't bring herself to watch so imagine how he felt!
"But he won't be too bothered not to get a medal, he's very laid back and will still be enjoying himself out there."
Physio Dean Cook said: "Back in September it looked like it wasn't going to happen so he's done brilliantly just to be at the Olympics, never mind make the final.
"It will take a while for what he's achieved to sink in."
Friend Mike Hurd, who has called for Billy's Olympic appearance to be rewarded with a snowdome in the south, said: "If Billy was injury free going into the Games he would probably have done even better, but he's done us so proud.
"Other countries have a pool of 10-15 riders to choose from, which puts Billy's result and that of his teammate Jamie Nicholls [who finished sixth] in perspective.
"It's all about fine lines at the elite level but they'll inspire the next generation."
Gold went to Sage Kotsenburg (USA) with silver and bronze to Staale Sandbech (Norway) and Mark McMorris (Canada).