Chapman (5-4) allowed one hit and struck out two in a scoreless ninth inning to earn the win Sunday against the Reds.
Chapman entered the game with the Pirates down a run and continued his dominant stretch. Since the All-Star break, he has allowed only one earned run across 15 innings while maintaining a 25:3 K:BB. David Bednar continues to serve as Pittsburgh's closer but has been very shaky, so Chapman may see a handful of save opportunities before the season concludes.