Couture scored for the Sharks at 17:53 to make it 2-1 and end Driedger's bid for the first shutout in Seattle history.
Jarnkrok scored into an empty net at 19:54 for the 3-1 final.
"Any time you're not scoring a goal until you pull the goalie it's going to be a tough way to win a hockey game," Boughner said. "You almost have to play perfect on the other side of the puck. I don't think we played bad defensively, but we opened it up to give them some chances."
NOTES: Donskoi's assist on Donato's goal was his 400th NHL point. He played for the Sharks for his first four NHL seasons (2015-19). ... Kraken forward Alexander True had three hits and a plus-1 against his former team. He was signed as a free agent by the Sharks in 2018 and spent two seasons with San Jose before being selected by Seattle in the 2021 NHL Expansion Draft. ... Sharks defenseman Radim Simek led all skaters with 11 hits. He is the third player in San Jose history to have 11 or more hits in a game. The last player was Joe Pavelski (against the Chicago Blackhawks, Dec. 20, 2015). ... The Sharks out-hit the Kraken 43-31... The Sharks and Kraken had seven total face-offs in the first period, tied for the fewest in a first period for the Sharks since Jan. 14, 2016 against the Edmonton Oilers. ... The Sharks and Kraken went 14:58 in the first period before the first whistle.