BOSTON (AP) _ Jeff Green scored 25 points for Boston, and reserve Marcus Thornton had 21.
Rajon Rondo had a triple-double with 13 points, 13 rebounds and 11 assists for the Celtics, who won their third straight after a season-high five-game losing streak.
Rasual Butler scored 14 of his 22 points in the final quarter for the Wizards (13-6), who failed to match the franchise’s best start since 1968-69.
Paul Pierce, who played for the Celtics for 15 seasons and was a member of their 2008 championship team before being traded to Brooklyn prior to last season, scored 16 points for Washington.
Wizards star John Wall had 17 points, 14 assists and eight rebounds.