The Wizards started the third on a 22-1 run and outscored the Bulls 35-14 in the period to turn a 52-34 deficit into a 69-66 lead, a quick and stunning turnaround for a team that shot just 27.9 percent in the first half. Washington then pulled away late in the fourth to win for just the fourth time in 15 games.
Joakim Noah hit two free throws to give the Bulls an 84-83 lead with 3:35 left, before Washington scored six straight. Brendan Haywood's dunk with just over two minutes remaining capping the spurt.
Chicago's Kirk Hinrich then hit a 3-pointer to make it a two-point game, but two free throws by Jamison and a floater by Antonio Daniels made it 93-87 with 1:14 remaining.
Andres Nocioni's 3-pointer pulled Chicago to 93-91 with 39 seconds left, but a lucky bounce on the Wizards' ensuing possession clinched the win for Washington. After a timeout, Darius Songaila got stripped on the wing. But Jamison recovered the loose ball near the basket, laid it in and converted the free throw after being fouled by Drew Gooden to make it 96-91 with 27 seconds left.