Baltimore Orioles
Jonathan Heasley has thrown 4,460 pitches that have been tracked by the PITCHf/x system between 2021 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they have relied primarily on their Slider (85mph) and Fourseam Fastball (93mph), also mixing in a Curve (79mph) and Change (87mph).
In 2024, compared to other RHP:
Their slider has short glove-side cut and has some two-plane movement. Their fourseam fastball generates more whiffs/swing compared to other pitchers' fourseamers, has essentially average velo, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. Their curve has an exceptional bite, is basically never swung at and missed compared to other pitchers' curves and has primarily 12-6 movement. Their change is much firmer than usual and results in somewhat more groundballs compared to other pitchers' changeups.