Jason Heyward’s two-out single to left in the seventh inning broke up Hammel’s no-hit bid.
Hammel retired 17 straight at one point, allowed just one baserunner -- a walk to Dan Uggla to open the second inning – until issuing another walk to Uggla with two outs in the seventh.
Then Heyward came to the plate and lined a 3-1 pitch for a single.
The Orioles still lead 5-0 in the top of the eighth.
The 29-year-old right-hander, acquired in February in the trade that sent Jeremy Guthrie to Colorado, has had an up-and-down season. He opened the season 6-1, but hasn’t won a game in three outings since. He’s coming off a start in which he issues a career-high five walks and allowed 10 baserunners through the game’s first two innings.
The Orioles haven’t thrown a no-hitter in 21-years, when Bob Milacki, Mike Flanagan, Mark Williamson and Gregg Olson combined to no hit the A’s on July 13, 1991.
Hammel took a no-hitter into the eighth inning in his first start as an Oriole in this third game of the season.
Braves starter Brandon Beachy dominated the Orioles early, retiring the first 11 batters he faced before leaving the game abruptly with right elbow soreness after issuing a two-out walk to Chris Davis in the fourth.
The Orioles capitalized on the injury. Atlanta reliever Anthony Varvaro walked the first two batters he faced to load the bases, and Mark Reynolds hit a 0-2 pitch to left-field for a two-run single to give the Orioles a 2-0 lead.
Brian Roberts has driven in a season-high three runs with a pair of two-out singles. In the fifth, he drove in Steve Pearce and added a two-run single past first base in the seventh to give the Orioles a 5-0 lead.Copyright © 2015, The Baltimore Sun