Gastelum is unscored upon in his last five appearances, logging a 12:1 K:BB over 6.1 innings during that span.
Gastelum was rocked for 15 runs (12 earned) with a 10:5 K:BB over 13.1 innings in his first 12 appearances in the majors. The rookie reliever has adjusted nicely, though, settling in as a valuable middle relief arm in St. Louis. Gastelum could move up the leverage ladder if he keeps up his recent form -- he has zero saves and just one hold so far. which came back on July 22.