Manitoba's Shannon Birchard defeated Ontario's Jamie Sinclair 8-3 on Monday morning to remain unbeaten at the M&M Meat Shops Canadian junior curling championships.

Birchard stormed out to an 8-1 lead and needed only eight ends to complete the victory. She leads the women's standings after five draws at 4-0.

"We played really well, the team played great," said Birchard. "It was a big game, especially to get that first-place spot in our pool so far.

"Hopefully we can keep that going in the rest of our round-robin games. It's definitely a big boost of confidence."

Sinclair fell into a third-place tie with idle British Columbia at 3-1.

Northern Ontario's Tirzah Keffer (2-2) picked up four points in the second end and outscored Prince Edward Island's Veronica Smith 11-6 in the other early women's game. Smith fell to 1-2.

In men's play, Manitoba's Matt Dunstone improved to 3-1 with an 8-2 rout of Quebec's Felix Asselin (1-2). Manitoba was in control after scoring five points with steals over the first three ends.

"Luckily for us, we got all the breaks and it worked out," Dunstone said. "It's the best game we've played all year. The guys didn't miss anything."

New Brunswick's Josh Barry improved to 4-0 with a 13-5 win over Northern Ontario's Matthew Roberts (1-3). Two more draws are scheduled for later Monday.