NEW YORK (AP) - Marian Gaborik and Brian Boyle scored minutes apart in the second period to break open a tight game, and top-seeded New York opened its first-round Eastern Conference series with a win.
The Rangers, the No. 1 seed in the East for the first time since they won the Stanley Cup in 1994, shook off their 1-2-1 regular-season mark against the Senators and easily dispatched them in Game 1.
Ryan Callahan scored in the first period, Gaborik and Boyle pushed the lead to 3-0, and Brad Richards added a goal in the third for the Rangers. New York will host the No. 8 Senators again on Saturday night before the best-of-seven series shifts to Ottawa for Games 3 and 4.
Henrik Lundqvist was sharp early, stopping Jason Spezza on a partial breakaway and then turning aside Jim O'Brien, who weaved his way through the New York defense before getting off an in-close drive that was knocked away.