Canadians Helen Upperton and Shelley-Ann Brown, who teamed up to win the silver medal in women’s bobsleigh at the 2010 Vancouver Olympics, have retired from the sport.

Calgary’s Upperton, who piloted the sled, and Brown, the brakewoman from Pickering, Ont., were the back end of a Canadian 1-2 finish in Vancouver, with Kaillie Humphries and Heather Moyse winning the gold medal.

Upperton, 32, began piloting in 2003 and broke through on the international scene in the 2005-06 season, when she became the first Canadian woman to win a World Cup bobsleigh race. She finished fourth at the 2006 Olympics with Moyse as her brakewoman.

Upperton ends her career with six World Cup victories and 20 podium finishes.

"I feel I have accomplished a tremendous amount in my bobsleigh career, but the time has come to say good-bye," Upperton said in a news release. "I am leaving the sport with great memories, friendships and experiences I will hold close forever."

"It was always such an honour to slide with Shelley-Ann. She is the true definition of what a Canadian Olympian is: humble, proud, incredibly committed to giving back to the community, and one of the best all-round athletes that has ever come through our sport."

Brown, also 32, was a collegiate track and field star at the University of Nebraska before joining the Canadian bobsleigh program in 2006. She partnered with Upperton for the 2009-10 season.

"It’s incredible to think that I came from barely knowing anything about winter sports, to standing on the podium at the Vancouver Games, and becoming part of Canada’s history," Brown said in the release.