Wall had 21 points and 13 assists in what was Washington's fifth consecutive victory. The Wizards close out the season Thursday at home against Miami needing a win to reach 20 for the year.
Wall also had seven rebounds, while Nene and Kevin Seraphin both scored 12 points for Washington, which built as much as a 14-point advantage in the fourth period.
A dozen Cleveland players were on the court for at least 10 minutes with D.J. Kennedy leading the Cavaliers by scoring 12 points. Cleveland lost its third straight.
Swim Week Miami Beach 2014 [PHOTOS]