The Edmonton Oilers and their NHL winning streak came to an end against the Ottawa Senators, while Michael Grabner enjoyed a night out for the New York Rangers.
After five successive wins, the Oilers suffered a 2-0 loss to the Senators on Sunday.
Senators goalie Craig Anderson made 37 saves, 18 of those in the third period.
Grabner scored a hat-trick as the Rangers eased past the slumping Tampa Bay Lightning 6-1.
The New York Islanders proved too strong for the Toronto Maple Leafs, pulling away for a 5-1 victory.
Among the winners on Sunday were the Philadelphia Flyers and the Chicago Blackhawks.
EMOTIONAL NIGHT FOR ANDERSON
It was a big game for Anderson in Edmonton.
Back in the team for the first time since taking a leave of absence on Thursday after his wife was diagnosed with cancer, Anderson produced a Herculean display to deny the Oilers.
GRABNER ENDS DROUGHT
A hat-trick had been a long-time coming for New York's Grabner.
The Rangers left wing had not netted a three-goal haul in more than five-and-a-half years but Grabner ended that drought.
To be exact, it was Grabner's first hat-trick since February 2011.
J.T. Miller had a goal and two assists, while Kevin Hayes amassed three assists.
LANDMARK NIGHT FOR SCEVIOUR
First career hat trick:-- #HockeyFightsCancer (@NHL) October 30, 2016
Have a night, Colton Sceviour. pic.twitter.com/o8Sd15ol6R
BLACKHAWKS WIN IN SHUTOUT
Corey Crawford stopped 32 shots to help the Blackhawks to a 3-0 against the Los Angeles Kings.
The Flyers outlasted the Carolina Hurricanes 4-3, the Nashville Predators were too good for the Detroit Red Wings 5-2, the Winnipeg Jets went down 3-1 to the Buffalo Sabres, while the Washington Capitals beat the Calgary Flames 3-1.
Players and fans alike have the chance to enjoy the festivities with a hockey-free day on Monday. NHL resumes on Tuesday.