Peralta (11-9) took the loss against the Pirates on Wednesday, allowing two runs on two hits and two walks with seven strikeouts across 5.1 innings.
Peralta retired 14 of the first 15 batters he faced but was burned by a two-run double with two outs in the fifth inning. While the 28-year-old has yielded just four total earned runs over his past three starts, he failed to log a quality start in any of his five September outings. He concludes the regular season with a 3.68 ERA, 1.21 WHIP and 200:68 K:BB across a career-high 173.2 innings.