Atlanta's defense, led by netminder Ondrej Pavelec, shut down Washington 1-0 at Philips Arena on on Wednesday.
The Thrashers were a +115 underdog in the win. The combined score dipped UNDER the total, which closed at 6.
Atlanta got a goal from Nik Antropov in the victory. Antropov opened the scoring at 11:21 of the second period.
Ondrej Pavelec turned in a 36-save effort for the Thrashers.
Semyon Varlamov stopped 23 of 24 shots for the Capitals, but it wasn't enough to earn the victory.
Atlanta scored 0 times on 2 chances on the power play, while Washington went 0-for-3 with the man advantage.
Washington outshot Atlanta 36-24 in the game.
Next game, Atlanta takes its act home to face New York looking for another win. For Washington, they head home to face Montreal.