Canada's Sharpe captures silver, Karker bronze in freeski halfpipe

Cassie Sharpe claimed silver and Rachael Karker bronze in the women's freeski halfpipe final on Friday for Canada's 21st and 22nd medals at the Beijing Olympics. China's Eileen Gu won gold for her third medal in Beijing.

It is Canada's sixth silver and 12th bronze medal in Beijing, along with four golds.

Sharpe, from Comox, B.C., finished with a best score of 90.75 points for her second Olympic medal after winning the event four years ago in Pyeongchang. Karker, from Erin, Ont., finished behind her with 87.75 to cap off her Olympic debut.

Sharpe's position on the podium caps off a remarkable comeback from knee surgery after she tore her ACL and MCL at the X Games a year ago. The 29-year-old only returned to competition in December.

Calgary's Amy Fraser finished eighth in her Olympic debut after posting 75.25 on her first run.

WATCH | Sharpe soars to Olympic silver in women's freeski halfpipe final:

U.S.-born superstar Gu made history for China by topping the podium (95.25), becoming the first action-sports athlete to win three medals at the same Winter Games. The 18-year-old sensation previously won big air gold and slopestyle silver in Beijing.

Raised in San Francisco, she has faced ongoing backlash for her decision to represent her mother's home country of China, but her decision has paid off with a show-stealing performance at her first Games.

WATCH | Karker earns bronze in her Olympic freeski halfpipe debut:

The best score of three runs determined the Olympic champion at Genting Snow Park.

Sharpe momentarily took top spot after earning 89 points on a great opening run that included back-to-back 900s and a big 1080 to close it out.

"It's the Olympics baby! What a rush," Sharpe said while awaiting her score.

She looked