Milwaukee Brewers
Rob Zastryzny has thrown 2,776 pitches that have been tracked by the PITCHf/x system between 2016 and 2025, including pitches thrown in the MLB Regular Season, The World Baseball Classic and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (92mph) and Cutter (86mph), also mixing in a Slider (81mph) and Change (82mph). He also rarely throws a Sinker (91mph).
In 2025, compared to other LHP:
Their fourseam fastball has much less armside movement than typical, generates more whiffs/swing compared to other pitchers' fourseamers, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their cutter has heavy sink and has sweeping cut action. Their slider sweeps across the zone. Their change dives down out of the zone, generates more whiffs/swing compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups. Their sinker (take this with a grain of salt because they've only thrown 5 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers and has less armside run than typical.