Coach Barry Trotz said the Capitals made it easy for Neuvirth for the first two periods by getting away from the things that had made them successful in the first three games.
"Didn't think we made their goaltender work very hard," he said. "I thought we made it a really easy night for him the first two periods. The third period we came with the effort that we're going to need to have for 60 minutes in terms of getting to the interior, making plays, using our speed, playing fast. All those things we're capable of doing."
The Flyers scored the first goal for the second straight game when Gostisbehere scored from the point with help from a Simmonds screen. It was the Flyers' first power-play goal in 14 chances in the series.
"It was huge," Simmonds said. "It was like taking a monkey off our back. ... To see that one go in really early was nice."
Giroux and Simmonds each assisted on the goal for their first points of the series. Giroux led the Flyers in points and Simmonds in goals during the regular season.