PHILADELPHIA — There is no secret to Boston’s road success. The Bruins play their system and play it well no matter where they play.

Patrice Bergeron scored the go-ahead goal in the second period and also tallied in the shootout to help Boston to a 4-3 victory over the Philadelphia Flyers on Sunday.

The Bruins have won nine straight road games, a single-season club record.

“Just being smart, playing the system and not forcing plays,” Bergeron said. “Every time we take what’s there, we have success.”

Reilly Smith, the fifth Boston shooter, clinched the victory in the shootout for the Bruins, who ended March 15-1-1.

“That’s pretty impressive,” Bruins Coach Claude Julien said. “They’ve stayed focused, they’ve stayed humble, they’ve stayed determined. I’m very proud of the way we’ve handled this month.”

Vincent Lecavalier scored twice for the Flyers, including the game-tying goal with 25 seconds left in regulation. Lecavalier’s first goal was the 400th of his career.

“I’ve always wanted to have a long career, but you don’t come into the league saying, ‘I want a certain amount of goals,'” Lecavalier said. “You come into the league saying, ‘I want to win the Stanley Cup.’ I never even thought about 400. Now that it was today I was proud of it, but as a hockey player your goal is to win a Stanley Cup.”

Kimmo Timonen also scored for Philadelphia, which has lost three of four to remain in third place in the Metropolitan Division.

Andrej Meszaros and Zdeno Chara also scored, and Tuukka Rask made a career-high 49 saves for the Bruins.

“They play their system to a ‘T’ no matter what,” Flyers Coach Craig Berube said. “They don’t vary from it. They’re a very competitive, heavy team.”

Bergeron scored to give Boston a 1-0 lead in the shootout and Claude Giroux, Philadelphia’s second shooter, tied it. But no other Flyers shooter scored.

The Bruins’ last road setback came in overtime Feb. 26 at Buffalo, and they haven’t lost on the road in regulation since a Jan. 9 defeat at Los Angeles.

Lecavalier scored his second goal with 25 seconds left. With goalie Steve Mason on the bench, Philadelphia pressed into the Boston zone.

Johnny Boychuk had a chance to clear the zone, but the puck bounced over his stick on a backhand clearing attempt and went right to Jakub Voracek, who passed in front to a wide open Lecavalier.