The Pittsburgh Pirates turned a tied game into a victory with a decisive fifth inning, defeating the Arizona Diamondbacks 4-2 at Chase Field on Thursday night.
Mitch Keller controlled the game for Pittsburgh, allowing 2 runs on 4 hits over 6.0 innings with 4 strikeouts to improve to 4-1. Carrying a 2.87 ERA, Keller worked around two walks while limiting Arizona's offense after the early exchanges.
The Pirates broke a 2-2 deadlock in the fifth when O'Hearn singled to right, scoring Lowe. Horwitz followed with another RBI single to right, bringing Reynolds home to give Pittsburgh a 3-2 advantage. Bart added insurance in the sixth with a solo homer to left center.
Zac Gallen took the loss for Arizona, surrendering 4 runs on 6 hits across 6.0 innings with 5 strikeouts. His ERA stands at 4.70 after falling to 1-3 on the season. The Diamondbacks managed just five hits against Pittsburgh pitching.
Pittsburgh improved to 20-17 with the victory, while Arizona fell to 17-18. Bryan Reynolds finished one hit away from 1,000 career hits. Gregory Soto earned his third save with a scoreless ninth inning.