Celtics roll past Heat 127-102, tie Eastern Conference finals at 1-1

MIAMI: His team was down by 10 in the opening minutes, and Boston coach Ime Udoka was making no effort to hide his level of disappointment.

His message was simple.

“Wake up,” he told his team.

Oh, they listened. And the Eastern Conference finals are all knotted up, the series about to shift to Boston with the Celtics now holding the home-court advantage.

Jayson Tatum scored 27 points, Marcus Smart and Jaylen Brown each had 24 and the Celtics went on a massive first-half run to roll past the Miami Heat 127-102 on Thursday night in Game 2 of the series.

“Guys have pride and looked at a golden opportunity that we kind of lost (in Game 1) and thought we could do much better,” Udoka said. “And we did that tonight.”

Smart was a rebound shy of a triple-double, after adding 12 assists and nine rebounds.

Grant Williams scored 19 points for Boston, which used a 17-0 run late in the first quarter — fueled by five 3-pointers in the span of six possessions — to take control. Payton Pritchard and Al Horford each had 10 for the Celtics.

“We were pretty confident,” Pritchard said.

Jimmy Butler had 29 points in 32 minutes for Miami, which fell to 7-1 at home in these playoffs. Gabe Vincent and Victor Oladipo each scored 14 points, and Tyler Herro added 11 for the Heat.

“This only counts as one,” Heat coach Erik Spoelstra said. “That’s what the experienced players in the locker room and staff understand. We don’t like it. They played extremely well. You have two really good teams and we just have to figure some things out.”

The Celtics — now 4-0 in these playoffs in the game immediately following a loss — made 20 shots from 3-point range to Miami’s 10. Game 3 is Saturday in Boston.

“It’s a loss, whether you lose by one or by