Kyle Okposo and Lubomir Visnovsky scored 51 seconds apart in the third period, and the host New York Islanders beat Chicago, 3-2, on Saturday night to snap the Blackhawks' NHL-best, eight-game winning streak.
After Patrick Kane gave the Blackhawks a 2-1 lead 3 minutes, 46 seconds into the third with an end-to-end rush with a backhanded finish, Okposo tied it with a power-play goal off a rebound of John Tavares' shot with 9:50 left.
Visnovsky then skated across the Chicago zone and beat backup goalie Scott Darling to put New York in front at 11:01.
Cal Clutterbuck also scored, and Jaroslav Halak made 23 saves to stop the Islanders' three-game losing streak. New York allowed 17 goals during the skid.
Blue Jackets 4, Penguins 3 - Cam Atkinson and Ryan Johansen scored in a shootout to lift host Columbus over Pittsburgh, running its win streak to six games.
The Penguins were missing seven players because of medical issues and played their second game in a row without Sidney Crosby, who was held out as a "precaution" while the Penguins await the results of tests to determine whether he has mumps.
Maple Leafs 4, Red Wings 1 - Richard Panik scored the go-ahead goal, and Jonathan Bernier stopped 27 shots to help host Toronto Maple Leafs beat Detroit for the second time in four days.
James van Riemsdyk, Morgan Rielly, and Nazem Kadri also scored for Toronto. Panik put the Leafs up by 2-1 with 2:10 remaining in the second period. Rielly extended the lead early in the third, and Kadri added an empty-netter with 3:14 remaining.
Niklas Kronwall scored for Detroit, and Petr Mrazek had 37 saves.
Kronwall's power-play goal with 4:33 remaining in the first period gave the Red Wings the lead, and van Riemsdyk tied it 60 seconds later with his power-play score.
Capitals 4 Lightning 2 - Nicklas Backstrom had his first career regular-season hat trick, Braden Holtby made 26 saves, and host Washington held on to defeat Tampa Bay.
Backstrom scored two second-period goals and completed the natural hat trick early in the third.
Alex Ovechkin and Tom Wilson each had two assists for Washington.
Tyler Johnson (with 4:24 remaining) and Matthew Carle (with 2:31 left) scored late in the third period to pull the Lightning within one, but Eric Fehr's empty-netter sealed it.
The Lightning, who were beginning a five-game road trip, have lost 3 of 4.
Ben Bishop made 24 saves for Tampa Bay, which had a first-period goal disallowed to due goaltender interference.
Ducks 4, Jets 1 - Ryan Getzlaf had a goal and an assist, and visiting Anaheim beat Winnipeg for its seventh consecutive win.
Senators 3, Bruins 2 - Dave Cameron earned his first win as an NHL coach when Bobby Ryan and Mikka Zibanjad scored in a shootout to lift visiting Ottawa over Boston.
Sabres 4, Panthers 3 - Nikita Zadorov scored 29 seconds into overtime to lift host Buffalo over Florida.