The Phillies handed the Rockies their third straight loss by getting the most out of a pair of pinch hitters.
Laynce Nix came off the bench in the seventh to deliver a two-run double that tied it up and Schierholtz delivered the game-winner off Will Harris (1-1).
While Schierholtz was at the plate, Harris threw a wild pitch that moved the runners to second and third, and the pinch-hitter than slapped a 3-2 offering to right to bring home Rollins. Schierholtz had gone hitless in his previous 15 at-bats.
Papelbon (4-6) worked the top of the ninth to get the win, which was the 10th for the Phillies in 14 games.