Scouting Report: Zac Gallen
Arizona Diamondbacks | SP
Overall
Summary
Zac Gallen is struggling significantly in 2026 after re-signing with the Diamondbacks on a one-year deal. Through 9 starts, he has a 1-4 record with a 5.65 ERA, 1.52 WHIP, and is allowing a .302 batting average with 11 extra-base hits. He has failed to record a quality start since April 1 and has been inconsistent, with poor performances against the Rangers (7 ER in 4.2 IP) and Pirates (4 ER in 6 IP), though he showed some improvement against the Giants with a quality start. May has been particularly brutal with a 10.67 ERA over 3 starts. He is being discussed as a potential trade candidate ahead of the deadline due to his poor performance and upcoming free agency.
Strengths
- Showed improvement against Giants with quality start
- Drew season-high 15 whiffs against Pirates with effective slider
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