Results of Hopman Cup mixed teams tournament

CANBERRA, Jan. 4 (Xinhua) -- Following are the results of the Hopman Cup mixed teams tournament in Perth on Thursday:

Group B

Switzerland bt United States 3-0

Men's singles: Roger Federer bt Jack Sock 7-6 (7/5), 7-5

Women's singles: Belinda Bencic bt CoCo Vandeweghe 7-6 (8/6), 6-4

Mixed doubles: Bencic/Federer bt Vandeweghe/Sock 4-3 (5/3), 4-2

Russia bt Japan 2-1

Women's singles: Naomi Osaka, Japan, bt Anastasia Pavlyuchenkova, Russia, 6-4, 3-6, 7-6 (7/5)

Men's singles: Karen Khachanov, Russia, bt Yuichi Sugita, Japan, 6-4, 6-2

Mixed doubles: Pavlyuchenkova/Khachanov, Russia, bt Osaka/Sugita, Japan, 4-1, 4-0

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