Mitch Marner scored twice, the second on a short-handed penalty shot to give Toronto the lead for good, and the Maple Leafs beat the Boston Bruins 4-1 on Thursday night in the opener of their first-round playoff series.
It was Toronto's first postseason penalty shot in 20 years.
Frederik Andersen made 37 saves and William Nylander and John Tavares also scored for Toronto, which swiped the home-ice advantage in the best-of-seven series as it tries to advance through Boston for the first time in six tries.
Game 2 is Saturday night.
Washington 4, Carolina 2
Nicklas Backstrom and Alex Ovechkin combined to score three goals on the first eight shots, and the defending Stanley Cup champion Washington Capitals survived a surge from Andrei Svechnikov and the Carolina Hurricanes to win Game 1 of their first-round series 4-2 on Thursday night.
Backstrom scored twice and Ovechkin scored on the power play to fire up a raucous sellout crowd in the first playoff game in Washington since celebrating the franchise's first title in June. It looked like the Capitals would roll toward a statement victory against an opponent lacking playoff experience, but the pesky Hurricanes turned up the heat.
Mrazek bounced back from a rough start to make four huge saves early in the third period, while Svechnikov scored twice in his playoff debut to put some fear into the Capitals, who were outshot 29-18 and outplayed for long stretches. Braden Holtby made 27 saves and the penalty kill came up big on two late Carolina power plays to allow Washington to take a 1-0 series lead.
Calgary 4, Colorado 0
Matthew Tkachuk scored twice and Mike Smith made 26 saves for his first playoff shutout in nearly seven years, and the Calgary Flames blanked the Colorado Avalanche 4-0 on Thursday night in Game 1 of their first-round Western Conference playoff series.
Rookie Andrew Mangiapane and Mikael Backlund also scored as Calgary won its first playoff game since beating Anaheim 4-3 in overtime on May 5, 2015.