Dallas goaltender Kari Lehtonen made 22 saves in his 33rd career shutout, leading the Stars to a 3-0 win against St. Louis on Sunday, stretching their lead over the Blues atop the NHL Central Division to nine points.
Braden Holtby stopped 29 shots, Jason Chimera had a goal and an assist and the Washington Capitals beat the struggling Montreal Canadiens 3-1 Saturday night for their seventh straight victory.
Louis Belpedio and Auston Matthews scored in a 41-second span late in the third period to give the United States a 4-2 victory over Canada 4-2 on Saturday in their first round-robin game in the world junior hockey championship.
Dallas goes into the NHL's Christmas break with the overall best record after beating reigning Stanley Cup champion Chicago 4-0 on Tuesday, with Patrick Sharp contributing a goal and an assist in his first regular-season game against his former team.
Dallas' Jamie Benn had two goals and an assist to lead the Stars to a 6-2 win against Montreal in Saturday's clash of two NHL divisional leaders.
Frank Vatrano scored three goals for his first career hat trick and Patrice Bergeron scored twice as the Boston Bruins beat the Pittsburgh Penguins 6-2 Friday night to sweep the teams' home-and-away series.
Jonathan Quick made a season-high 45 saves, and Anze Kopitar and Drew Doughty scored as the Los Angeles Kings beat the Montreal Canadiens 3-0 on Thursday night.
Washington won 4-1 at Pittsburgh on Monday to spoil Mike Sullivan's coaching debut for the Penguins.
St. Louis' David Backes had a goal and an assist to lead the Blues to a 3-0 home win over Dallas on Saturday, cutting the gap between the Central Division's top two teams.
Kyle Palmieri scored in overtime to give the New Jersey Devils a 3-2 victory over the Detroit Red Wings on Friday.