Jayson Tatum had 24 points, Marcus Smart added 22 points, five steals and two crucial free throws, and Boston beat Denver.
Boston Fail to deliver at the Clutch Moment as the Atlanta Hawks register their sixth consecutive win ascending to the 11th spot in the eastern conference.
The Boston Celtics were in dire need of a win Sunday afternoon against the Washington Wizards following another week of uneven results and Tatum made sure they won.
Jusuf Nurkic's two point jumper at the clutch time wins it for Portland Trail Blazers as Boston Celtics failed to score in the 4th quarter