Before scoring with 7:33 left in the third period, Ovechkin set up goals by Tom Wilson and Aliaksei Protas. Wilson ended an 0-for-22 power-play drought with his team-leading sixth goal of the season.
Brandon Duhaime and Jakub Vrana scored less than a minute apart, and new dad Connor McMichael also had a goal for the Capitals, who improved to 7-2-0. They last won seven of their first nine games in 2015-16.