UFA, Russia — The United States routed Germany 8-0 Thursday at the world junior ice hockey tournament behind a goal and two assists each from Alex Galchenyuk and Riley Barber.

This was the first Group B game for the Americans, who are tied for first place with Canada. The Canadians downed Germany 9-3 on Wednesday. The U.S. plays Russia on Friday.

U.S. goaltender John Gibson stopped 19 shots through two periods. He was replaced for the third by Jon Gillies, who made seven saves.

Sean Kuraly added a goal and an assist for the Americans. Goalie Marvin Cupper had 38 saves for the Germans.

The Americans were up 3-0 after the first period on goals by Kuraly, Jacob Trouba and Galchenyuk. They scored another three in the second -- Barber, Shayne Gostisbehere and Ryan Hartman. J.T. Miller then scored on a solo effort midway through the third and Seth Jones completed the rout less than two minutes later.

Russia is third in Group B after beating Slovakia in overtime on Wednesday. Germany is in last place.

Switzerland 7, Latvia 2

Mike Kunzle had two goals while Tanner Richard added three assists to lead Switzerland past Latvia 7-2 on Thursday at the world junior hockey tournament.

The contest was the tournament opener for Switzerland in Group A while Latvia fell to 0-2 in the conference standings.

The Swiss overcame an early 1-0 deficit to improve to 4-0 all-time against Latvia.

Christoph Bertschy, Lukas Balmelli, Sven Andrighetto, Sandro Zangger and Alessio Bertaggia had the other goals for Switzerland.

Swiss goalie Luca Boltshauser stopped 21 shots.

Nikolajs Jelisejevs and Arturs Sevcenko replied for Latvia.

Switzerland is tied for first at three points with Finland and Sweden in Group A. The Czech Republic is also in the group.

In Friday's other preliminary-round games, it's Finland vs. Czech Republic, Sweden vs. Switzerland and Canada vs. Slovakia.