A friendly sibling rivalry turned out favorably for Mark Stuart and the Boston Bruins. Stuart's goal broke a tie a period after brother Colin scored his first NHL goal for Atlanta, and the Bruins ended a six-game skid with a 5-2 victory over the Thrashers on Monday. "It was nice," Mark Stuart said. "He one-upped me earlier, so I had to do it." Boston's first goal of the game -- a power-play score by Dennis Wideman -- was the team's 18,000th, making the Bruins the second NHL team to reach that mark. Montreal has 18,886. "Maybe Boston Bruins' trivia one day," Wideman said. Phil Kessel and Matt Lashoff added insurance goals in the third for Boston. P.J. Axelsson also scored for the Bruins, 0-5-1 in their previous six games. It was their worst stretch since they ended last season 0-6-0.