David Pastrnak had a hat trick as the Boston Bruins took control with three second-period goals, beating the Philadelphia Flyers 7-3 on the shore of Lake Tahoe.
Samantha Mewis scored a hat trick and her big sister Kristie Mewis added another to give the United States a 4-0 exhibition victory over short-handed Colombia.
Connor McDavid had a hat trick and an assist, Ryan Nugent-Hopkins scored twice and added an assist and the Edmonton Oilers beat the Vancouver Canucks 5-2.
Carter Verhaeghe had his first career hat trick and Tampa Bay scored six times to finish the second period helped the Lightning beat the Vancouver Canucks 9-2.
Carli Lloyd and Morgan Brian scored in the first 10 minutes and Lynn Williams add a pair of second-half goals in the United States' 6-0 win over Costa Rica.