Trent Frederic scored two goals, David Pastrnak added his team-leading 24th and the Boston Bruins beat the Tampa Bay Lightning 7-3 on Saturday night. Charlie McAvoy, Morgan Geekie, Charlie Coyle and Jake DeBrusk also scored for Boston, which has won five of its last six games. Hampus Lindholm and Matt Poitras each had two assists, and Linus Ullmark made 23 saves.