Holtby's shutout was his first of the season and fourth of his career. With the game scoreless, he kept Florida off the board with a nice glove save against Kris Versteeg during a two-on-one break.
"Braden made the big save early for us, what we needed, on the two-on-one," Oates said. "After that, we didn't give 'em much."
In the second period, Ward gave the Capitals their first three-goal lead of the season when he beat Theodore from the left circle after Perreault and Eric Fehr worked the puck out from along the boards. It was Ward's fifth goal of the season.
"We have let teams linger around and as a result we've gotten no points out of those games," Brouwer said. "So tonight it was very important for us to try and get momentum in our direction, get chances and ultimately score a couple more goals and put some distance between us and them."
Ovechkin made it 4-0 at 3:49 of the third period when he scored off a faceoff. It was Ovechkin's fourth goal of the season, but first at even strength. Jason Chimera and Mike Ribeiro had the assists.
Perreault, who returned to the lineup Saturday night after being a healthy scratch the past five games, banged in the rebound of a Jeff Schultz shot at 9:28 to close the scoring.
"(The Capitals) have skill and if you give them opportunities, they're going to capitalize and that's exactly what we did tonight."
Theodore was pulled after Perreault's goal, having stopped 16 of 21 shots.
NOTES: Washington's John Erskine returned from a three-game suspension he received for an elbow to the face of the Flyers' Wayne Simmonds on Feb. 1. ... Erskine and Florida's George Parros had a fight at 5:44 of the first period. ... Washington Nationals third baseman Ryan Zimmerman was at the game.