The 21-year-old qualified among the top six on Saturday night at Zhangkiakou to reach the medal round.

He scored 78.88 in his final run as Swede Walter Wallberg, the last competitor to ski, posted 82.18 to win the gold medal in a surprise result, relegating defending Olympic champion Mikael Kingsbury to silver with a score of 82.18.

In a pulsating last round Japan's Ikuma Horishima scored 81.48 for the bronze medal.

Woods came into the Games eyeing a top 10 result and was thrilled to reach the super six final for only the second time in his short career - with perfect timing at the Olympics.

"That was an awesome night," Woods said.

"It was something that I've been working toward since I was a young teenager.

"A goal I had in the back of my head was top 10 and I would have been extremely happy with that so to make it into the top six ... I'm lost for words."

Woods qualified fifth into the medal round while compatriot Brodie Summers was 10th out of the 12 competitors with 75.00 and missed out.

The joy felt by Woods was in stark contrast to the misery felt by teammate Matt Graham.

Graham was looking for his second Olympic medal in the moguls after a silver in PyeongChang four years ago, but was left in tears after he failed to progress past the second qualifying round at the start of Saturday's competition.

The 27-year-old needed one of his best runs to advance to the final after bombing his first qualification run on Thursday night, but instead had one of his worst in the second qualifying round.

"This is the most pain and heartbreak I've ever felt," Graham said.

"A broken collarbone obviously hurt but this hurts a hell of a lot more.

"I'm pretty heartbroken, especially after the last Olympics being such a pinnacle and to feel such elations and satisfaction - I was chasing that feeling again."

Graham had an interrupted build-up to Beijing, breaking his collarbone during a World Cup in Sweden in December and returning home to Australia after surgery to recuperate.

While he didn't want to blame having six weeks off the snow, as well as complications when he developed a haematoma, it surely affected his performance.

"I'm happy that I'm here and just to be here is an achievement but I knew I could do so much better and really push the top guys tonight ... I just didn't execute."

The wind made conditions tricky and Graham said he misjudged the top jump.

"I went left out of the top air and was just chasing my tail the whole way down."

Australian Associated Press