With the win, the Blue Jackets moved three points back of the Montreal Canadiens for the second wild card into the Stanley Cup Playoffs from the Eastern Conference. Columbus and Montreal each have two games remaining.
Adam Fantilli scored twice, and Zach Werenski also scored for the Blue Jackets (38-33-9), who beat the Capitals 7-0 on Saturday. Jet Greaves made 29 saves after recording his first NHL shutout on Saturday..
Charlie Lindgren made 19 saves for the Capitals (50-21-9), who are 3-6-1 in their past 10 games and locked into first place in the Metropolitan Division.
Ovechkin gave the Capitals a 1-0 lead 1:10 into the first period, scoring on a one-timer from the slot off a pass from Dylan Strome. It was his 43rd goal in 63 games this season.
Werenski tied it 1-1 at 14:36 when he scored on wrist shot from the point through traffic.
Fantilli gave the Blue Jackets a 2-1 lead at 4:39 of the second period. Capitals forward Tom Wilson failed to control a pass in the Washington zone, and Fantilli controlled the loose puck and beat Lindgren from the slot.
Fantilli made it 3-1 at 1:57 of the third period, scoring over a sprawled Lindgren from the slot off a behind-the-back pass from Kent Johnson.
Dmitri Voronkov broke up a pass from Strome in the neutral zone, chased down the puck and beat Lindgren short side at 15:48 of the third period for the 4-1 final.