The San Francisco offense was unable to scratch across any runs in a 3-0 loss to Cincinnati.
Carried by the starting rotation and timely hitting, the Giants are off to one of their best starts in years.
Tuesday night, the Athletics could put together just four hits against the Astros, losing 9-1. Wednesday, four hits were enough for Oakland to earn a two-game split, riding Frankie Montas to a 2-1 win.
Oakland starter Chris Smith held the Orioles without a single base hit. Unfortunately for him, Baltimore (57-58) was more than happy to pound out nine extra-base hits.
The Baltimore Orioles mustered just three hits as the Oakland Athletics claimed a second-straight victory.
Backed by solid defense, Kendall Graveman continued his recent run of success to collect his fifth win since July.