Chicago Cubs
Adbert Alzolay has thrown 3,756 pitches that have been tracked by the PITCHf/x system between 2019 and 2023, including pitches thrown in the MLB Regular Season and Spring Training. In 2023, they have relied primarily on their Slider (87mph) and Sinker (95mph), also mixing in a Fourseam Fastball (96mph) and Cutter (91mph). He also rarely throws a Change (88mph).
In 2023, compared to other RHP:
Their slider is much harder than usual. Their sinker generates fewer whiffs/swing compared to other pitchers' sinkers and has well above average velo. Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has well above average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their cutter results in somewhat more flyballs compared to other pitchers' cutters, has slightly above average velo, has some natural sink and has strong cutting action. Their change (take this with a grain of salt because they've only thrown 5 of them in 2023) is basically never swung at and missed compared to other pitchers' changeups, is much firmer than usual, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.