Manny Machado went 4-for-6 with a homer and four total RBI to lead the Orioles over the Nationals 10-8 on Wednesday.
Wade Miley earned a win against the Nationals by holding them to two runs over five innings on Wednesday.
Joey Rickard (thumb) will be reexamined on September 2.
Orioles recalled RHP Mike Wright from Triple-A Norfolk.
Orioles placed RHP Chris Tillman on the 15-day disabled list, retroactive to August 21, with right shoulder inflammation.
Ubaldo Jimenez will make a spot start for the Orioles on Thursday versus the Nationals.
Kevin Gausman twirled six shutout innings in Tuesday's 8-1 victory over the Nationals.
Chris Davis singled and smacked a solo home run in Tuesday's win over the Nationals.
Orioles manager Buck Showalter said Tuesday that Chris Tillman (shoulder) is likely headed to the 15-day disabled list.
Chris Tillman (shoulder) is now questionable for his Thursday start against the Nationals.
Dylan Bundy held the Nationals to two runs over six innings of work in Monday's 4-3 win.
Zach Britton tossed a perfect ninth inning to record his 38th save of the season in Monday's win over the Nationals.
Jonathan Schoop smacked a solo home run in Monday's victory over the Nationals.
Orioles optioned C Caleb Joseph to Triple-A Norfolk.
Orioles activated C Matt Wieters from the paternity leave list.