After grounding out to second base in the fifth inning, Pence manned his position in the bottom of the inning but was replaced defensively by Gorkys Hernandez in the sixth.
Pence missed 48 games with an injured right hamstring earlier this season.
Chris Haft has covered the Giants since 2005, and for MLB.com since 2007. Follow him on Twitter at @sfgiantsbeat and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.