Happy that he was in the lineup, too.
Kuraly was only in the game because of a decision by coach Bruce Cassidy, who opted to go with him over third-line center Ryan Spooner, based on the way Kuraly played in the first two games of the series.
It looked like the wrong decision in the first period, after David Krejci left with a lower-body injury, leaving the Bruins with 11 forwards, and with a first-line center, a fourth-line center, and a forward playing his 11th career NHL game, his third in these playoffs.
But Kuraly, who played eight games in the regular season and two in the playoffs, was everything the Bruins needed him to be. In the end, he was rendered speechless.
"Yeah. Wow," he said. "It's - yeah. Feels good. Keep the series going. Do what we came here to do. Yeah, it was a good night."
But Kuraly was not overmatched. He was not overwhelmed. Instead, he was flying all over the ice and in position to do damage.
At 14:25 of the first overtime, Kuraly's shot was stopped by Senators goaltender Craig Anderson. Kuraly tripped over Anderson's pad as Bruins forward Noel Acciari pushed in the rebound, but the play was ruled to not be a goal on the ice because of goaltender interference, and was upheld by review.
So on they played, and that gave Kuraly more opportunities to be the hero.
"He was buzzing," goaltender Tuukka Rask said. "Hardworking guy, he does the right things. Chips the puck in and goes out there and bangs bodies and gets his nose dirty. It just goes to show that when you do that you get rewarded. Great example."
The images of Kuraly were priceless. There was the reaction after the first goal, a wonderment of youth-hockey glory at the NHL level, a smile as wide as he could make and a desire to embrace everyone in sight.
"You don't really know until you score your first goal," Kuraly said. "It felt great. You work a long time to do that. For it to go in, it felt good. It was a good one."