WINNIPEG - Ontario's Sherry Middaugh advanced to the women's semifinal at the Canadian Olympic Curling Trials, downing Chelsea Carey 6-3 in the tiebreaker Friday.

Middaugh faces Rachel Homan in the semifinal contest Friday night.

A flashed guard in the eighth end by Carey's second Kristen Foster was one of the few mistakes in a cautious game but it started a chain reaction that helped Middaugh get two for a 4-2 lead.

She forced Carey to take one in the ninth and came home one up with the hammer.

On the men's side there was no need for a tiebreaker.

Former teammates Kevin Martin and John Morris will meet in the men's semifinal Saturday.