Corey Perry scored 1:30 into overtime and the Ducks rallied from three goals down for a 5-4 win over the host Flames to take a 3-0 series lead in the first-round series.

Perry’s sharp-angled shot deflected off several players and past Flames goalie Brian Elliott.

Shea Theodore had two goals, Nate Thompson had a goal and two assists, and Nick Ritchie also scored for the Ducks. Rickard Rakell, Kevin Bieksa and Hampus Lindholm each had two assists.

John Gibson gave up four goals on 16 shots before he was replaced by Jonathan Bernier in the second period. Bernier stopped all 16 shots he faced.

Sean Monahan had a goal and an assist, and Kris Versteeg, Sam Bennett and Michael Stone also scored for Calgary. Mikael Backlund and T.J. Brodie each had two assists, and Elliott finished with 22 saves.

Game 4 is Wednesday night.

Senators 4, Bruins 3, OT: Bobby Ryan scored on a tip-in on a power play 5:43 into overtime, and Ottawa recovered after giving up a three-goal lead to beat host Boston and take a 2-1 lead in the first-round series.

Ryan got free in the zone, tapping it in on assists by Kyle Turris and Erik Karlsson. Mike Hoffman added two goals for Ottawa, with Derick Brassard scoring the other. Craig Anderson finished with 17 saves.

It was the second straight overtime game of the series, and second consecutive win for the Senators following their 4-3 victory in Game 2.

This time Bruins rallied from a 3-0 deficit with three goals in second period, tying the game on a power play goal by David Pastrnak.

Noel Acciari and David Backes also scored for the Bruins. Tuukka Rask stopped 28 shots.

Game 4 is Wednesday night.

Predators 3, Blackhawks 2, OT: Kevin Fiala scored on a backhander 16:44 into overtime, and the host Predators rallied from a 2-0 deficit in the third period to push the Blackhawks to the brink of elimination.

Filip Forsberg scored twice in the third period to force overtime. Pekka Rinne made 34 saves, even with his franchise playoff scoreless streak ending early in the second period at 141 minutes, 5 seconds.

Game 4 is Thursday night in Nashville.

Dennis Rasmussen and Patrick Kane each scored the first goals this series for the Western Conference’s No. 1 seed. News services