Posey went 2-for-4 with three RBI and a walk in Sunday's 11-4 win over the Padres.
Posey got the Giants on the board with a two-run single in the third inning and later knocked another RBI base hit in the fourth. Since the start of September, he's gone 27-for-89 (.303) with 15 RBI and 11 extra-base hits. He turned in a .304/.390/.499 slash line through 454 plate appearances this season.