CINCINNATI -- Ubaldo Jimenez pitched 7 2/3 innings and Jonathan Schoop's RBI single and a sacrifice fly by Manny Machado provided all the offense, lifting the Baltimore Orioles to a 2-0 victory over the Cincinnati Reds on Wednesday night at Great American Ball Park.

Jimenez (1-0) delivered his finest outing of the season following a rough first two starts, allowing two hits with four walks and three strikeouts.

With closer Zach Britton on the disabled list, the Orioles turned to right-hander Brad Bach who pitched a 1-2-3 ninth for his first save.

Reds rookie left-hander Amir Garrett (2-1) went toe to toe with Jimenez in his Great American Ball Park debut after making the first two starts of his career on the road.

Garrett allowed two runs and seven hits with a walk and 12 strikeouts in seven innings. The 12 strikeouts tied the club record by a rookie left-hander and the most since Dennis Reyes fanned 12 on Aug. 28, 1998, at Pittsburgh. The club record for Reds rookies is held by Gary Nolan, who struck out 15 San Francisco Giants on June 7, 1967.

Garrett has produced quality starts in each of his first three career outings.

In his first two starts this season, Jimenez had good command of his fastball and breaking pitches but had difficulty putting hitters away. Over those two outings, Jimenez threw 198 pitches in 8 2/3 innings.

On Wednesday, he got off to a much better start with an 11-pitch first inning. Jimenez had 60 pitches through four innings while allowing only two hits.

The Orioles handed Jimenez an early lead after Wellington Castillo doubled and scored on Schoop's single in the second. Baltimore led 2-0 after Machado's sacrifice fly in the fifth.

Jimenez retired 10 of 11 heading into the sixth inning with only 70 pitches.

The closest Cincinnati came to scoring against Jimenez was when Adam Duvall, who hit a grand slam the previous night, made a bid to tie the score with a two-run home run in the sixth, but his drive was caught on the warning track in center by Adam Jones.

Jimenez rolled into the seventh with 86 pitches having allowed only two hits with three walks and a pair of strikeouts.

In the eighth, Joey Votto represented the tying run with Billy Hamilton on third, but Donnie Hart got Votto to hit a pop fly to left which Trey Mancini leaned over the railing to snag for the final out.

NOTES: Orioles RHP Zach Britton will undergo an MRI on Friday in Baltimore to assess his strained left forearm. ... Orioles OF Joey Rickard hit off a tee and threw for the first time since going on the DL with a finger sprain on his left hand. ... Reds 1B Joey Votto made his 1,255th career appearance, tying Ted Kluszewski for most in franchise history at that position. ... Cincinnati has set its rotation for the weekend series with the Chicago Cubs: RHP Tim Adleman (Friday), LHP Cody Reed (Saturday) and RHP Bronson Arroyo (Sunday).