BALTIMORE - So much for momentum. And so much for the postseason, probably. Truthfully, though, that ship sailed long ago.

Anyone who thought Thursday's stunning walk-off victory over the Rays would be the start of some kind of September surge simply hasn't been paying attention to the Yankees this season.

Coming off one of their most stirring victories of the year, the Yankees suffered a soul-crushing 2-1 loss to the Orioles Friday in the first game of a day-night doubleheader, losing on Jimmy Paredes' two-out, two-run double off Adam Warren in the 11th inning.

The loss -- which had looked like a 1-0 win when Chris Young homered off Brad Brach in the top of the 11th -- was another step toward a second straight dark October. "It's pretty quiet, as you would expect," Young said of the clubhouse. "But we have to pick ourselves up really fast. We have about an hour and a half until the next one."

The next one didn't go too well either, a 5-0 loss in which the Yankees (75-71) had four hits. They fell 121/2 games behind the AL East-leading Orioles (88-59), and entering Friday night's late games, they trailed the Tigers by 51/2 games in the race for the second wild card.

"Extremely frustrating, especially because you've got some momentum from the way you won the last two games," Joe Girardi said after Game 1, a reference to 8-5 and 5-4 victories over the Rays Wednesday night and Thursday night in which the Yankees came back from a 4-0 deficit in each game.

The teams traded zeros Friday afternoon until the 11th as both starters and both bullpens shined. The Yankees' Brandon McCarthy allowed four hits and no walks with six strikeouts in seven innings and the Orioles' Kevin Gausman gave up seven hits and two walks in seven innings, striking out seven.

Pitching ruled in the second game as well. In his first career start, Yankees rookie righthander Bryan Mitchell allowed two runs and six hits in five innings and Orioles righthander Bud Norris (13-8) allowed three hits in seven innings.

David Phelps, on the DL since Aug. 4 with elbow inflammation, got the first two Orioles in the seventh before walking the bases loaded and allowing Delmon Young's two-run single to make it 4-0. Alejandro De Aza had two RBI triples for the Orioles.

After McCarthy left the first game, Dellin Betances and David Robertson combined to throw three scoreless innings, with Betances pitching out of a first-and-third, none-out jam in the eighth and Robertson escaping a bases-loaded, two-out jam in the ninth. Warren was called on to close but could not make Young's third key homer in as many games hold up to record his third save of the season.

"I've been in those situations before, so I don't feel the situation got to me," said Warren (3-6), who has two saves this season. "I just think I was a little amped up . . . I rushed a little bit."

The rally started with a walk to Nelson Cruz. David Lough pinch ran and went to second on Ryan Flaherty's sacrifice bunt. Warren hit J.J. Hardy with a pitch but struck out former Yankee Kelly Johnson. Pinch hitter Steve Clevenger walked to load the bases and former Yankees farmhand Paredes won it, lining a first-pitch changeup into the rightfield corner.

"It's an unfortunate ending," McCarthy said. "It's tough and it's a quiet clubhouse right now, and it should be."

Notes & quotes: Derek Jeter, who was hit by a 94-mph fastball in the left elbow Thursday night, did not play in the first game but started the second game at shortstop and went 0-for-4 . . . Chase Headley did not suffer any broken bones after getting hit in the jaw by Jake McGee's 96-mph fastball Thursday. He joined the team before the second game after seeing a neurologist earlier in the day in New York.