In the top of the first, starter Caleb Smith made quick work of Joe Panik before allowing a Buster Posey double. Andrew McCutchen followed with his seventh homer of the season to give the Giants an early 2-0 lead.
The Giants’ lead would hold until the fourth inning. Brian Anderson drew a walk and J.T. Realmuto singled to left. After a mound visit, Cameron Maybin smacked an RBI-single to cut the lead in half.
Lewis Brinson tied it after a Justin Bour strikeout, but Maybin was thrown out at the plate.