Los Angeles Kings edge Calgary Flames 5-4 in overtime
Defensemen Deryk Engelland and Mark Giordano had a goal and an assist each for the Flames, while Mikael Backlund and Hunter Shinkaruk also scored.
The Ducks fell into a first-place tie with the Kings atop the Pacific Division.
Trevor van Riemsdyk and Andrew Ladd scored after Artem Anisimov was knocked out of the game by a questionable hit from Antoine Vermette, and surging Chicago beat visiting Arizona.
Sidney Crosby and Carl Hagelin each scored twice and Pittsburgh beat host Ottawa for its seventh straight victory.
Craig Smith scored at 4:17 of the third period, and host Nashville eliminated Colorado from playoff contention.
Derek Stepan scored twice and set up Chris Kreider’s winner while rallying host New York to a victory over playoff-bound Tampa Bay.
The Lightning earned their third straight playoff berth when Boston lost in a shootout to Carolina.
The playoff-bound Panthers swept the four-game season series against Montreal.
Thomas Hickey scored in overtime as New York rallied from two goals down in the third period to beat host Washington and clinch a playoff berth.
Noah Hanifin scored the only goal of a shootout in the fifth round and Carolina beat host Boston, denting the Bruins’ playoff hopes.
The Bruins fell into a tie with Detroit and Philadelphia for the final Eastern Conference playoff spot.