Jed Lowrie had a two-run single in a four-run fourth. Matt Chapman singled twice and scored two runs, and Bruce Maxwell added an RBI double for Oakland. The A’s had lost four of five since winning on opening day.
Every Oakland starter had at least one hit or scored a run.
Manaea (1-1) hit Shin-Soo Choo with a pitch leading off the game but was dominant after that, allowing just one runner past first base and retiring 11 of his final 12 batters. The left-hander struck out four and walked one while beating the Rangers for the third consecutive time.
Manaea is the only A’s starter to make it past the fifth inning this season, having done it in both outings. He yielded one run over 7 2/3 innings but took the loss against the Angels last Friday.
Chapman singled leading off the inning before Fister plunked Chad Pinder with a pitch and walked Maxwell to load the bases. Gallo then fielded Boog Powell‘s grounder but his throw home was high and Chirinos dropped the ball as Chapman slid in.
After Marcus Semien‘s sacrifice fly drove in Pinder, Lowrie lined a 1-2 pitch to left field to make it 5-0 and chase Fister.
Oakland tacked on another run on the seventh when Matt Olson singled in Matt Joyce.
Fister allowed seven hits over 3 2/3 innings and had five strikeouts.
Rangers: With a left-hander starting for Oakland, 2B Rougned Odor was given the night off.
Athletics: Joyce (left ankle) was cleared quicker than anticipated and started in left field. He doubled in the first and then walked and scored in the seventh.
Texas LHP Martin Perez is scheduled to come off the disabled list to start the series finale Thursday afternoon. Perez had surgery on his non-pitching elbow in December. He will oppose Oakland RHP Daniel Mengden (0-1, 7.94 ERA), winless in 12 career starts at the Coliseum.