BOSTON, Nov. 7 (UPI) -- Brandon Bass scored five straight points in a 12-4 run that ended the overtime period Wednesday, lifting Boston to a 100-94 decision over Washington.
The Wizards brought about the extra session when Chris Singleton delivered a dunk shot with 9 seconds to go in the fourth period and Washington took a 90-88 lead in overtime with 3:49 to play.
Boston then seized control with Bass putting the Celtics in front for good by hitting a free throw with 2:21 remaining. He boosted the Boston lead with a layup 25 seconds later and added a dunk with 37 seconds left that gave the Celtics a 97-92 advantage.
Boston won its second straight after losing its first two games of the season. The Wizards began the evening as one of two winless teams in the NBA.
Kevin Garnett had 20 points and 13 rebounds for Boston, which made 28 free throws to just six for the Wizards. Rajon Rondo added 18 and Jason Terry had 16 off the bench.
Washington got 16 points from Bradley Beal.
