Celtics thrive on 3s, beat Heat 110-97 in Game 5 to extend East finals

BOSTON — Derrick White had 24 points, including six 3-pointers, and the Boston Celtics dominated the Miami Heat 110-97 on Thursday night in Game 5 to extend the Eastern Conference finals.

Marcus Smart had 23 points and five steals. Jayson Tatum and Jaylen Brown finished with 21 points apiece as the Celtics claimed their second straight win and trimmed Miami’s series lead to 3-2.

It keeps alive Boston’s hopes of becoming the first team in NBA history to overcome a 3-0 deficit to win a series. Teams previously in that position are 0-150 all-time.

Game 6 is Saturday in Miami.

A day after the Florida Panthers punched the franchise’s first ticket to the Stanley Cup Finals since 1996, for the second straight game the Heat were denied a spot in the NBA Finals.

Duncan Robinson led the Heat with 18 points. Bam Adebayo added 16 points and eight rebounds. Jimmy Butler had 14 points, five rebounds and five assists but sat out the final 9:47 of the game. Caleb Martin finished with 14 points.

It was Butler’s lowest-scoring game of the playoffs.

He had 16 points in Game 3, a blowout win by Miami.

Miami never led and had 16 turnovers.

Boston entered the day just 4-5 at TD Garden this postseason. But with a raucous home crowd behind them, the Celtics thrived on their energy.

They dove for loose balls, outfought Miami for rebounds and found each other for layups and dunks in transition as they built as much as 20 points in the first half.

The Heat cut into it, but Boston kept knocking down 3s and grew its edge as high as 96-72 in the fourth quarter.