The Heat snapped the Celtics' winning streak after earning a 124-103 victory at TD Garden.
Tyler Herro led all scorers with 25 points for the Heat. Bam Adebayo added 21 points.
Miami has won six in a row and sits ninth in the East.
Jaylen Brown led the Green in scoring with 24 points and came within one rebound of recording a double-double.
Boston had won nine straight and is currently second in the conference.
(Photo by Rich Storry/Getty Images)
Photo: Rich Storry / Getty Images Sport / Getty Images