Kevin Koe, Canada stay unbeaten at world curling championship

Canada downed Russia 7-2 in Tuesday's evening draw to remain unbeaten at the men's world curling championship in Switzerland.

Canada opened the game with a first-end deuce and never looked back, scoring back-to-back singles in the third and fourth ends, and then put away the win with an emphatic three in the eighth to bring on the handshakes.

With comfortable wins in four straight draws, including a 6-3 win over Germany Tuesday morning, skip Kevin Koe and his Calgary team improved to 7-0 in the round-robin portion of the tournament.

Canada has four games remaining in the round-robin schedule, including matches against reigning world champ Niklas Edin of Sweden on Wednesday, and 2014 world champ Thomas Ulsrud of Norway on Thursday.

"We're not looking anywhere past our next game," said Canada second Brent Laing. "We played another really good game tonight on tough ice conditions with a lot of frost. Draw weight was tough. Luckily I didn't have to throw one because it didn't look like fun. But we have back-to-back games tomorrow, and that's always a tough grind, and that's where our focus is."

Canada is alone in the lead in the 12-team round-robin standings, while the Norwegians are close behind at 6-1. John Shuster of the United States is alone in third at 5-2.

Sweden, Denmark and Japan are at 4-3 and Switzerland and Finland are hanging on at 3-4.