WASHINGTON (AP) — John Carlson scored a power-play goal and Braden Holby made 19 saves to help the Washington Capitals beat the Philadelphia Flyers 2-0 in Thursday night in Game 1 of the Eastern Conference first-round series.

Washington’s penalty kill went for 4 for 4 and frustrated the Flyers. Holtby had seven saves on Philadelphia power plays to pick up his third career shutout in the playoffs.

Islanders 5, Panthers 4

SUNRISE, Fla. (AP) — John Tavares had a goal and two assists, including one that set up Kyle Okposo’s go ahead goal early in the third period, and New York beat Florida Game 1 of the Eastern Conference series.

Thomas Greiss survived a shaky beginning and made 42 saves for the Islanders in his first playoff start, and Brock Nelson, Frans Nielsen and Ryan Strome added goals for New York.

Shark 4, Kings 3

LOS ANGELES (AP) —

Joe Pavelski broke a tie with his second goal early in the third period, and San Jose opened its playoff return with a victory over Los Angeles.

Brent Burns and Tomas Hertl scored for the Sharks in their first postseason game since losing four straight to the Kings in 2014, completing a seven-game flop in the first round. Los Angeles rode the momentum to its second Stanley Cup title, but both California rivals missed the playoffs last year.

Stars 4, Wild 0

DALLAS (AP) — Kari Lehtonen made 22 saves for his second career playoff shutout, Jamie Benn had a goal and two assists and Dallas beat Minnesota in Game 1 of the Western Conference series.

Jason Spezza returned to the postseason with a nifty goal and added an assist.