Baltimore Orioles
Jonathan Heasley has thrown 4,049 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 (94mph), also mixing in a Curve (80mph). He also rarely throws a Change (88mph).
In 2024, compared to other RHP:
Their slider results in many more groundballs compared to other pitchers' sliders, has short glove-side cut and has some two-plane movement. Their fourseam fastball generates an extremely high number of swings & misses 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, generates fewer whiffs/swing compared to other pitchers' curves, is slightly harder than usual, has primarily 12-6 movement and results in somewhat more flyballs compared to other pitchers' curves. Their change (take this with a grain of salt because they've only thrown 3 of them in 2024) generates an extremely high number of swings & misses compared to other pitchers' changeups, is much firmer than usual and results in more flyballs compared to other pitchers' changeups.