The victory marked the second consecutive victory in the event by a Washington player; Capitals captain Alex Ovechkin won the event in 2018 at Tampa Bay with a shot of 101.3 mph, which was 1.5 mph slower than Carlson's slap shot.
Cue the bragging rights.
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"We'll see," Carlson said, wearing a big grin when asked if he would be reminding Ovechkin about whose shot was harder. "I've got to see [if] I've got my facts straight about him first.
"I'm sure he'll probably be giving it to me at some time tonight first."
Carlson and Ovechkin are the big shooters on the Capitals power play. Carlson normally plays the point; Ovechkin sets up in the left face-off circle, although they do sometimes alternate.
Washington goalie Braden Holtby, who faces them in practice almost every day, was asked to break down the shots of his two teammates.
"John's sneaky," Holtby said. "He doesn't necessarily go for power all the time, he's more concerned with accuracy and getting it on net. But he showed tonight that when he wants to, he can really fire it.
"Ovie, on the other hand, just winds up and blasts it. There's no science to what he's trying to do."
Holtby laughed at the thought of what will happen in the locker room once the Capitals reconvene after the break for the 2019 Honda NHL All-Star Game.
"It should be fun watching them both give verbal jabs to each other after this," he said.
Carlson, who has eight goals in 49 games this season, said he didn't enter the competition with any swagger, considering he was going up against the likes of Burns, Tampa Bay Lightning forward Steven Stamkos and Columbus Blue Jackets defenseman Seth Jones.
"I wasn't really thinking too much about it," he said. "I think all those guys have really hard shots; a lot harder shots than me I would say. I think from that end I had no expectations of what anyone was going to shoot. It was just fun to chop it up a little bit."
The record in the event belongs to Boston Bruins defenseman Zdeno Chara, who unleashed a shot of 108.8 mph in 2012. Montreal Canadiens defenseman Shea Weber, then with the Nashville Predators, had a shot of 108.1 mph in 2016.
"That's nuts," Carlson said. "Chara and Shea Weber, their shots, it's a whole different league from everyone else. It's incredible how hard they can shoot it."