Non-MLB
Although they have not thrown an MLB pitch in 2024, Jhoulys Chacín threw 24,011 pitches that were tracked by the PITCHf/x system between 2009 and 2023, including pitches thrown in the MLB Regular Season, The World Baseball Classic and Spring Training. In 2023, they relied primarily on their Slider (80mph) and Sinker (91mph), also mixing in a Cutter (85mph), Curve (78mph), Change (85mph) and Fourseam Fastball (91mph).
In 2023, compared to other RHP:
Their slider comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth and results in more flyballs compared to other pitchers' sliders. Their sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers, has less armside run than typical and results in somewhat more groundballs compared to other pitchers' sinkers. Their cutter (take this with a grain of salt because they've only thrown 8 of them in 2023) has heavy sink, is basically never swung at and missed compared to other pitchers' cutters, has sweeping cut action, is an extreme flyball pitch compared to other pitchers' cutters and has below average velo. Their curve (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' curves, results in more flyballs compared to other pitchers' curves and has little depth. 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, has surprising cut action, results in more flyballs compared to other pitchers' changeups and has some natural sink to it. Their fourseam fastball (take this with a grain of salt because they've only thrown 4 of them in 2023) generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has much less armside movement than typical, has some natural sinking action and has slightly below average velo.