McCann gave the Kraken a 4-3 lead after he entered the zone, eluded defenseman Timothy Liljegren and beat Logan Thompson with a low wrist shot. Ryan Winterton scored on a breakaway at 17:20 for the 5-3 final.
Frederick Gaudreau scored his third goal in two games and added an assist, and Winterton also had an assist for the Kraken (4-2-0), who have won two in a row to begin a five-game road trip. Ben Meyers had two assists, and Joey Daccord made 33 saves.
Jordan Kyrou scored his first goal as a member of the Capitals (3-2-0), who had won two straight. Logan Thompson made 22 saves.
Kaapo Kakko gave Seattle a 1-0 lead at 6:06 of the first period. Thompson made the save on Vince Dunn’s point shot, but the rebound went to Kakko in the bottom of the right circle and he scored between Thompson’s left skate and the post.
Kyrou, acquired in a trade with the St. Louis Blues on June 23, tied it 1-1 at 11:41 when he took a cross-ice pass from Cole Hutson and scored from the bottom of the left circle.
Ovechkin gave Washington a 2-1 lead at 16:47. Seattle defenseman Peter Evans turned the puck over behind the net and Ilya Protas passed in front to Ovechkin, who wristed it past Daccord.
Jordan Eberle tied it 2-2 at 19:49, knocking home his own rebound at the back post.
Gaudreau put the Kraken back ahead 3-2 at 13:24 of the second period after he took a pass in front from Winterton, deked around Thompson and slid the puck home.
Boone Jenner tied it 3-3 when he kept the puck in at the blue line and then knocked in his own rebound in front 46 seconds into the third period.
