Jeff Green (17 points), Jordan Crawford (16), Kevin Garnett, Brandon Bass (14), Avery Bradley (14) and Paul Pierce (12) also reached double figures as Boston bested the Magic for an eighth straight time.
Garnett grabbed nine rebounds for the Celtics, who have games against Indiana at home and in Toronto remaining on their schedule.
The Magic got 22 points from Tobias Harris while tumbling to their sixth loss in seven games.
Nik Vucevic added 16 and 12 boards for Orlando.
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