Gallen's steady six-inning starts and a late-season surge support the outs prop, against a Giants lineup that has shown life but may not disrupt the Diamondbacks’ rhythm in a tight race.

Gallen was a hypothetical trade target Boston pursued at the deadline; Boston’s decision to pass and add Dustin May shifts the rotation but leaves Gallen in Arizona as a high-end ace. For fantasy, Gallen remains a cornerstone, with elite strikeouts and win potential, while the Sox’s non-deal don’t dampen his value elsewhere.

Gallen would have been the marquee piece for Boston, with Arizona signaling he’d fetch more value than a late-first-round pick and retaining him in a package. His 2.20 ERA across seven starts since the deadline illustrates why his name headlines deadline chatter and fantasy conversations alike.

Zac Gallen’s August turnaround is framed as a real, though small-sample, uptick driven by his fastball re-emergence and steadier command. He shows improved peripherals since July, with a notable improvement in BAA and hard contact, suggesting the latest run isn’t purely luck. The piece emphasizes mental and emotional stabilization as a factor in his resurgence, making him a more credible rest-of-season asset and potential QO consideration for Arizona.

Gallen dominated Texas, limiting them to a minimal output as Arizona leaned on timely defense. His control and efficiency anchored the D-backs’ win and underscored why he’s a fantasy staple down the stretch when Arizona needs him most.