Dillon Dube scored twice in the first period and the Calgary Flames beat the Dallas Stars 3-2 in Game 1 of their first-round playoff series on Tuesday.Rasmus Andersson also scored for Calgary, which advanced to the best-of-seven series by beating the Winnipeg Jets in four games in the best-of-five qualifying round.Denis Gurianov and Jamie Benn scored for Dallas, which went 1-2 in the seeding round to earn the No.