Andreas Athanasiou scored twice and Jonathan Bernier stopped 41 shots, giving the host Detroit Red Wings, who had lost 12 of their previous 13 games, a 2-1 win against the Islanders on Saturday.
Anders Lee, the Islanders’ captain, had a tying scored on a shot from the slot midway through the first period, his team-high 26th goal, and Thomas Greiss had 20 saves.
The Islanders, who had won two straight and four of five, remained in second place in the Metropolitan Division, two points behind Washington and two points ahead of Pittsburgh.
On his first goal, at 2 minutes 59 seconds of the first period, Athanasiou got a break. He centered a pass that went off the left leg of Islanders defenseman Ryan Pulock and into the net.
There was much more skill on display for his second goal. Athanasiou put Detroit ahead, 2-1, almost halfway through the second period. He tapped the puck past Greiss off Danny DeKeyser’s slap pass from the top of the right circle to the left side of the net.
Athanasiou celebrated his second goal by leaping to bump chests and hug his teammate Tyler Bertuzzi.
“He gets pretty excited when we score, so I thought I’d get excited with him,” Athanasiou said.
It was the first victory for Bernier in more than a month.
“If Bernier doesn’t have that night, we probably win, 4-1,” Islanders Coach Barry Trotz said. “But they got a fortunate goal, and we probably have 25 scoring chances and couldn’t bury them.”
LIGHTNING 6, CAPITALS 3 Alex Killorn got his first career hat trick, and Tampa Bay beat Washington in the teams’ first meeting since last year’s Eastern Conference finals.
The host Lightning set team records for wins (55) and points (114) in a season, becoming the 12th team in N.H.L. history to earn at least 55 victories in a season.
Alex Ovechkin scored twice for the Capitals, giving him 48 goals.