Nick Markakis flied to the warning track in center field to score Corey Patterson, who led off with a double, and give the Orioles a quick 1-0 lead.
Jake Arrieta needed only nine pitches to complete the top of the first.
Update: Former Oriole Jack Cust doubled to score Ryan Sweeney in the top of the second and tie the game, 1-1.
Update II: Patterson has misplayed another ball in left field, getting a late jump on Cliff Pennington's drive, turning the wrong way and falling down as two runs scored.
Felix Pie is back at Double-A Bowie, starting in left field.
Nolan Reimold is back at Triple-A Norfolk, starting at first base.
Blake Davis is playing third base for the Tides in Josh Bell's absence.
Left-hander Zach Britton struck out the first Triple-A batter he faced.