Saskatchewan's Silvernagle locks up playoff berth at Canadian Open
Others to advance Friday are Edmonton's Laura Walker and American Nina Roth
Robyn Silvernagle's hometown rink has secured a playoff spot at the Canadian Open in North Battleford, Sask.
The team from North Battleford, Sask., knocked off Switzerland's Silvana Tirinzoni 8-4 in a B event game at the third major of the Grand Slam season on Friday.
Others to advance from the B event Friday were Edmonton's Laura Walker and American Nina Roth.
Walker beat Satsuki Fujisawa of Japan 8-6, while Roth edged Casey Scheidegger of Lethbridge, Alta., 5-4.
Scotland's Eve Muirhead and Ottawa's Rachel Homan already had qualified for the playoffs in the A event. Three more qualifiers were to come out of the C event on Friday night.
In men's play, Matt Dunstone's Regina rink stayed alive in C event play with a 10-2 win over Winnipeg's Jason Gunnlaugson.
Winnipeg's Braden Calvert eliminated Scott McDonald's Kingston, Ont., rink with an 8-5 victory in C action.
Scotland's Bruce Mouat and Edmonton's Brendan Bottcher are through to the playoffs after surviving the A event.
The Canadian Open uses a triple knockout format.