BALTIMORE — Brendan Ryan scored the tiebreaking run in the ninth inning on a wild pitch by Jim Johnson, and the Yankees beat the Orioles 6-5 Thursday night after blowing a four-run lead.
Mark Reynolds and Curtis Granderson homered for the Yankees, who remained one game behind Tampa Bay for the second American League wild card spot. New York travels next to first-place Boston for a weekend series.
New York led 5-1 before Nick Markakis hit a solo home run in the seventh and Danny Valencia homered with two on against David Robertson in the eighth.
But the Yankees bounced right back in the ninth with an unearned run against Johnson. Ryan, obtained in a trade with Seattle on Tuesday, led off with a single. Chris Stewart bunted, and Johnson threw wildly into centerfield for an error that left two on.
After another bunt put the runners at second and third, Johnson uncorked a pitch that didn't reach the plate and bounced to the backstop.
Mariano Rivera got three straight outs in the bottom half and was given credit for the win by the official scorer because Robertson was ineffective in the eighth.
The start was delayed by rain for 1 hour, 18 minutes.
After defeating New York in the opener of the four-game series Monday night, the Orioles needed to win only one of the next three to capture the season series for the first time since 1997. Instead, the Yankees emerged with a 10-9 edge in 2013.
Baltimore trails New York and Cleveland in the wild card chase and fell into a tie with idle Kansas City, 2½ games behind the Rays.
Orioles starter Wei-Yin Chen gave up five runs and seven hits in 6 1/3 innings. After a rocky start, the left-hander retired 13 straight before Granderson homered in the seventh to make it 5-1.
The injury-riddled Yankees lost another important player when centerfielder Brett Gardner left in the first inning with a strained muscle on his left side. The extent of the injury was not known.
Reynolds put the Yankees up 2-0 in the second with a drive to left after Eduardo Nunez hit a leadoff single. It was Reynolds' fourth homer in 22 games since joining New York in mid August.
Eight of the first 14 batters Chen faced reached base. In the third, after Alfonso Soriano sandwiched a double between walks, Vernon Wells hit a two-run single.
In the bottom half, Baltimore used an RBI single by Manny Machado to close to 4-1.
Granderson chased Chen with his second homer in two games.