Dylan Strome scored three times, and Washington Capitals beat the New York Islanders 3-1 on Tuesday night.
It was Strome's third career hat trick. Charlie Lindgren made 33 saves for Washington, which had dropped two in a row.
Hudson Fasching scored in the third period for New York, and Ilya Sorokin stopped 33 shots.
The Islanders have dropped four of five going into their season finale at Columbus on Thursday night. They will miss the playoffs for the second time in four seasons.
The Capitals are preparing for the playoffs after winning the Metropolitan Division.