The Caps broke out after a Devils turnover, Carl Hagelin sending Justin Schultz into New Jersey ice along the right-wing wall. Schultz patiently carried to the bottom of the circle, surveying for options as he skated. Garnet Hathaway came down his off wing and opened up to present himself as a viable target, Schultz put it in his wheelhouse and the Caps went up 1-0 at 3:36 of the first.
A minute and a half later, the Caps doubled their advantage. T.J. Oshie made a strong play along the right-wing half wall in the Devils' zone, blunting a New Jersey breakout bid and pushing the puck to John Carlson at the right point. Carlson went sharply to partner Brenden Dillon at the left point. From there, Dillon floated a wrist shot toward the net and Daniel Sprong - a late addition to the lineup when Evgeny Kuznetsov was a late scratch because of an upper body ailment - deflected it behind New Jersey netminder Mackenzie Blackwood, making it a 2-0 game at 5:06.
Washington made it a 3-0 game in the back half of the first. Conor Sheary forced a Will Butcher turnover at the Capitals' line, creating a 3-on-1 foray into the Devils' zone with Lars Eller carrying and Sheary trailing. Eller dropped it Sheary, who went back to Eller for the finish at 13:40 of the first, giving the Caps and Vanecek all the offense they would require on the afternoon.
The Devils didn't have much going on offensively in the first frame, but they got on the board on a late power play. Jack Hughes won a left dot draw back to P.K. Subban at the point, and Subban pounded a hard drive off the back wall and right to Nico Hischier, who snuck it short side on Vanecek at 18:16 of the first.
"The starts for these afternoon games has been something we've had to buckle down and focus on," says Dillon, "and today we got the start we wanted. The whole first period, we were really putting the puck to them and taking the game to them. And even after a little adversity there - they scored at the end of the period - I thought we defended hard and didn't give them too much the rest of the way."