An up and down night defensively for Atlanta started in the first, as Martin Prado made a slick grab to start a double play at first base. Not too bad for a guy who hadn't played first base since last season.
Tommy Hanson battled some control issues and a very inconsistent strike zone from home plate umpire Darryl Cousins in the first couple of inning. Baltimore loaded the bases in both the second and third, but Hanson worked out of the jam each time.
The Orioles finally broke through in the fourth, thanks in part to an uncharacteristic error from Andrelton Simmons. Simmons made a nice stop on a grounder in the hole off the bat of Mark Reynolds, but his throw sailed high, causing Prado to have to go up and get it. Wilson Betemit followed with a double to center that Michael Bourn bobbled. Reynolds came around to score and Betemit made it all the way to third.
Back-to-back one out walks by Hanson in the sixth forced Fredi Gonzalez to use the hook on him, replacing Hanson with Chad Durbin. Durbin struck out Pearce and Matusz to end the frame.
The final line on Hanson was 5.1 IP, 4 H, 2 R, 0 ER, 6 BB, and 2 K's.
Matt Diaz singled with one out in the sixth to get things going, and Andrelton Simmons launched the second home run of his career to give the Braves a 3-2 lead. Jack Wilson pinch hit for Durbin, and tripled to center, and scored on a Bourn single up the middle to make it a 4-2 game.
In his return to the big leagues, Kris Medlen threw two shutout innings of relief in the seventh and eighth.
Craig Kimbrel entered in the ninth, and recorded his 19th save of the season.