TORONTO -- The Orioles coughed up a late lead against the Blue Jays on Thursday night to lose, 5-4, on a walk-off single against Miguel Castro in the bottom of the 10th.
Brad Brach entered for a save opportunity with a 4-1 lead in the ninth, but quickly allowed the Blue Jays to tie the game, highlighted by Randal Grichuk's two-run double. Castro finished the ninth and came out for the 10th, but surrendered the final hit to Blue Jays shortstop Aledmys Diaz, a liner into left field.
"Brad got that first out and it looked like it was set up pretty good," manager Buck Showalter said. "But that's why you play the game."

Until the ninth, it looked like newcomer Austin Wynns' solo shot in the seventh -- the first of his Major League career -- had made the difference. The home run left Wynns' bat at just 78.2 mph, but was sky-high and hung up just long enough to clear the wall at 345 feet and give Baltimore the lead.
"Austin, you've got to take something out of that night for him," Showalter said. "It was a big moment for him."
Another very strong outing from David Hess kept the Orioles in the game until the later innings, as the rookie right-hander allowed one run on five hits over six-plus innings. Hess owns a 3.07 ERA over five starts since making his Major League debut.
"I had to utilize my offspeed pitches," Hess said. "I threw some curveballs, I threw some splits that were good, just trying to keep them off balance. Me and [catcher] Wynns were together pretty much each inning going over what happened, what adjustments we wanted to make going into the next inning."

Hess controlled the zone well with two walks and four strikeouts, but did particularly well at forcing Blue Jays hitters to produce weak contact. Outside of Curtis Granderson's home run -- the only real damage against Hess -- most of the balls that Toronto put in play against him were routine for the Orioles' defense.
"He's not intimidated by the situation," Showalter said of Hess. "He's got a lot of respect for them, but here it is. He's got more than a fastball. I've been really impressed with his command and his usage of multiple pitches."
The struggling Chris Davis had a big opportunity to break out of his season-long slump with the bases loaded in the sixth inning and help Baltimore's offense after the Blue Jays intentionally walked Jonathan Schoop in front of him. Davis worked a 3-1 count, but watched strike two and swung through strike three to end the inning. Davis is hitting .152 with a .464 OPS.

MOMENTS THAT MATTERED
Early lead: Manny Machado put the Orioles on the board in the first inning with a sacrifice fly to right field that scored Trey Mancini, who opened the game with a line-drive double to left field and advanced to third on an Adam Jones grounder.

Double dip: Baltimore added two insurance runs in the eighth inning on back-to-back solo home runs from Danny Valencia and Mark Trumbo. The two home runs off John Axford left their bats with exit velocities of 107.3 mph and 109.2 mph, respectively, and both were no-doubters.

SOUND SMART
Machado is just the second player in Major League Baseball to reach 50 RBIs this season. Only J.D. Martinez of the Red Sox has more.
HE SAID IT
"He's been with me for the past few years. I've gotten to see him grow and he's gotten to see me grow. It's been a lot of fun. We've definitely grown to learn each other, and I think it translates out there." -- Hess, on Wynns, who he worked with in the Minor Leagues

UP NEXT
Right-hander Andrew Cashner (2-7, 5.02 ERA) takes the mound for Baltimore's second of four games in Toronto at 7:07 p.m. ET on Friday night. Cashner has allowed 28 hits over 16 innings in his last three starts, but is coming off a better outing against the Yankees. The Blue Jays will counter with lefty J.A. Happ, who has been their most consistent starter with a 4.08 ERA.