Non-MLB
Although they have not thrown an MLB pitch in 2024, Jairo Asencio threw 1,373 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 Fall/Winter Ball. In 2023, they relied primarily on their Fourseam Fastball (92mph) and Change (86mph), also mixing in a Slider (85mph). He also rarely threw a Sinker (92mph).
In 2023, compared to other RHP:
Their fourseam fastball has an obvious tail, has some natural sinking action, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their change generates more whiffs/swing compared to other pitchers' changeups, is slightly firmer than usual, has slight armside fade and has some natural sink to it. Their slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, generates fewer whiffs/swing compared to other pitchers' sliders and has primarily 12-6 movement. Their sinker (take this with a grain of salt because they've only thrown 2 of them in 2023) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has slight armside run and has some natural sinking action.