Orioles prospect Zach Dzierwa kept rolling Wednesday night, and the scoreboard at FirstEnergy Stadium barely had a chance to breathe.
The organization’s No. 4 prospect carved through Reading over six scoreless innings in Double-A Chesapeake’s 3-2 win, striking out seven and carrying a no-hit bid into the sixth. He’s now gone 17 straight innings without allowing an earned run, giving up only seven hits in that stretch and stacking up zeroes in both of his August starts.
Dzierwa came out firing from the jump. He struck out the side in the first inning and punched out six of the first nine hitters he saw, setting the tone for a night when the left-hander looked in complete control.
His fastball did a lot of the damage. Six of his seven strikeouts came on the pitch, and his full mix produced a 31 percent whiff rate, with nine swings and misses on 29 swings. Since July 1, Dzierwa’s 36 strikeouts rank second in the Orioles system.
The only hit he allowed came in the bottom of the sixth, when Pedro León lined a one-out single. One pitch later, Dzierwa cleaned it up by getting Raylin Heredia to bounce into an inning-ending double play.
The matchup didn’t make it any easier, either. Reading lined up six right-handed hitters, but the 6-foot-8 southpaw handled that look just fine. Across two Minor League levels this season, Dzierwa has held right-handers to a .173 average and a .272 slugging percentage.
That kind of run prevention has become the story lately for hitters on either side of the plate. Over his last seven starts, covering 35 2/3 innings, opponents have managed only a .457 OPS against the Ohio native, along with six extra-base hits.
In his first pro season, Dzierwa has already emerged as one of the system’s top young lefties. Among qualified pitchers in the Orioles’ farm system, he leads in ERA at 2.01, strikeouts with 132, WHIP at 0.86, opponent average at .173 and OPS allowed at .487.
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