St. Louis Cardinals
Although they have not thrown an MLB pitch in 2026, Zack Weiss threw 3,802 pitches that were tracked by the PITCHf/x system between 2018 and 2025, including pitches thrown in the MLB Regular Season, The World Baseball Classic and Spring Training. In 2025, they relied primarily on their Slider (85mph) and Fourseam Fastball (94mph). He also rarely threw a Change (85mph).
In 2025, compared to other RHP:
Their slider sweeps across the zone, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, results in more flyballs compared to other pitchers' fourseamers, has essentially average velo and has slightly less natural movement than typical. Their change has slight cut action, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it.