Boston's offense exploded Wednesday night, erupting for 53 points in the first quarter during a 147-129 blowout of the Miami Heat. The tally tied the second-highest-scoring opening quarter in NBA regular-season history, surpassed only by Golden State's 55-point outburst in 2023. Jaylen Brown spearheaded the onslaught with 20 points in the quarter, his ninth 20-point performance of the season. The Celtics shot 20-of-28 from the floor and 11-of-15 from three-point range, establishing a 53-33 lead after one period.

Coach Joe Mazzulla praised the team's unselfish play, noting they prioritized high-percentage shots over heroics.