Doughty put the Kings ahead 1-0 at 13:19 of the first period with a one-timer from above the right circle after a drop pass from Fiala.
“I just got the one-timer back,” Doughty said. “Guys are making good passes to me, obviously, and then always guys screening in front of the net. When I have that, just as long as I can get the puck up, a lot of times it's going to go in and they've been going in for me this year, and I'm pretty proud of that.”
Kopitar made it 2-0 at 5:14 of the second period when his one-timer from the left circle beat Demko over his far shoulder.
Doughty had the secondary assist on the goal, his 500th in the NHL.
“Me and ‘Kopi’ played together a long time, there's not a guy that I look for more than him,” Doughty said. “My entire career, there is not a guy that I'd rather play with than him, and for it to be on his goal, I think that makes it extra special.”
Boeser cut it to 2-1 on the power play at 2:55 of the third period with a snap shot from the left circle off a cross-ice pass from J.T. Miller.
Fiala pushed it to 3-1 at 4:27 with a power-play goal on the rush. He skated across the blue line, passed the puck to Kopitar at the left point, went to the net and put in a seam pass from Kopitar at the right post.
“That was a great pass,” Doughty said. “That was kind of vintage L.A. Kings tonight, me and ‘Kopi,’ I thought stepped up and pulled it out with the rest of the guys.”
Brandt Clarke scored his second NHL goal to make it 4-1 at 12:31, taking a pass from Byfield on the rush, shifting the puck from forehand to backhand and stuffing it around Demko’s outstretched pad.
Moore took a lead pass from Fiala and scored on a breakaway for the 5-1 final at 15:38.
“That's what we're best at, when we're frustrating teams like that, especially their top talent, made it tough to come through the neutral zone,” Talbot said. “They had to give up the puck a lot and that's not something they'd like to do. They carry the puck and create off the rush and we didn't really allow them to do that tonight, so you could definitely sense the frustration."