Zac Gallen’s August resurgence has fantasy managers buzzing. After a rough first half, the right-hander delivered a 2.57 ERA, 1.09 WHIP, and .220 BAA in six August starts, and his 12-start run since early July sits at 3.42/3.28/1.10. He hasn’t tinkered with his repertoire; his four-seamer and knuckle-curve remain, but the fastball is carrying better results.

The improvement looks like a blend of better execution and favorable luck. The latest stretch shows a favorable gap between expected and actual BAA and a drop in hard contact, suggesting batters aren’t squaring him up as often. If that carries, Gallen becomes a credible late-season asset with potential qualifying-offer leverage for Arizona.

Mental game and a more authoritative fastball could sustain this run, even if the sample is still modest. Fantasy managers should weigh the upside against the risk of regression, but Gallen’s current form makes him worth a cautious, risk-aware investment down the stretch.