Canada's Jennifer Jones cruised to an eighth straight win at the women's world curling championship with a 10-2 victory over Moe Meguro of Japan.
The Winnipeg foursome remained the only unbeaten team in the 12-team field at 8-0.
Canada is slated to meet Germany's Andrea Schopp (4-3) in the afternoon draw.
The top four teams at the conclusion of the round robin Thursday advance to the playoff round.
Only twice has a team gone undefeated in the round robin in the history of the tournament: Canada's Colleen Jones in 2003 and Sweden's Anette Norberg in 2005.
Scotland's Eve Muirhead was 6-1 and Erika Brown of the U.S. was 5-2.