Canadian rankings to be used to determine final wild-card spots at Scotties, Brier Curling Canada has decided to use the national ranking system as its selection criteria for the final wild-card berths at the Scotties Tournament of Hearts and Tim Hortons Brier. The Canadian Press Mackenzie Zacharias , Curling Canada Curling Canada has decided to use the national ranking system as its selection criteria for the final wild-card berths at the Scotties Tournament of Hearts and Tim Hortons Brier. The announcement clears a path to the Calgary bubble for Manitoba's Mackenzie Zacharias and Ontario's Glenn Howard. Beth Peterson, also from Manitoba, saw her chances greatly improve but the decision closed the door on Alberta's Kelsey Rocque and Saskatchewan's Robyn Silvernagle.