The deciding marker was Kuraly's third goal of the postseason, having also notched third-period insurance tallies in Game 7 against Toronto and Game 4 against Columbus (both goals made it 3-1 Bruins). It is an ever-growing list of clutch goals for the 6-foot-2, 213-pounder out of Miami of Ohio, who also notched the winner at the 2019 Winter Classic at Notre Dame Stadium.
"It's unbelievable," said Marcus Johansson. "I think everyone has said this, one of the strengths of this team is that we have four lines that can produce at any given time on any given night. What better time to do it than tonight?
"It's not just that [the fourth line] scored the goals, I think they led the group to take the game over in to being more physical and I think that is what won us the game."
That may very well be the case.
As Johansson pointed out, it wasn't just Kuraly's goal that proved vital to Boston's Game 1 win. Well before that, it was the trio of Kuraly, Noel Acciari, and Joakim Nordstrom that sparked the Bruins after they'd fallen into a 2-0 hole.
With Boston battling through what was some inevitable rust following their 11-day layoff, Bruins coach Bruce Cassidy decided to make a switch in his matchups. After surrendering two goals to the Blues' first line of Jaden Schwartz, Brayden Schenn, and Vladimir Tarasenko, Cassidy opted to counter them with Kuraly's line instead of Bergeron's.
"This is what they do," said Cassidy. "They possess pucks, they can skate, they play simple hockey. And I think against St. Louis if you play North, especially for us being off as long as we were, we had to not get drawn into the fancy stuff, the East-West stuff.
"We needed to be a little more physical against that line and I thought they were able to deliver on that too."