The Boston Celtics received 23 points, 10 rebounds and 10 assists from Jayson Tatum and breezed to a 114-94 victory over the visiting Miami Heat on Sunday in Game 1 of a first-round Eastern Conference playoff series.

“His mindset approach throughout the game was great,” Boston coach Joe Mazzulla said of Tatum. “I thought he played with great patience, thought he picked and chose the spots very well.”

The top-seeded Celtics made 22 of 49 attempts from 3-point range (44.9 percent). All eight Celtics who saw playing time made a 3-point attempt. Eighth-seeded Miami was 12 of 37 (32.4 percent) from 3-point range.

Derrick White (20 points), Kristaps Porzingis (18), Jaylen Brown (17), Sam Hauser (12) and Al Horford (10) also scored in double figures for Boston, which won all three meetings with Miami during the regular season.

“We had a good week of practice and we’re ready to go,” White said. “We got a good win in Game 1. We made them work (on offense). They’re going to keep coming at us for 48 minutes, so learn from this one and get ready for Game 2.”