Non-MLB
Luis Santos has thrown 793 pitches that have been tracked by the PITCHf/x system between 2017 and 2025, including pitches thrown in the MLB Regular Season and Fall/Winter Ball. In 2025, they have relied primarily on their Fourseam Fastball (91mph) and Change (85mph). He also rarely throws a Slider (84mph).
In 2025, compared to other RHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 13 of them in 2025) has an obvious tail, has some natural sinking action and has slightly below average velo. Their change (take this with a grain of salt because they've only thrown 7 of them in 2025) results in more flyballs compared to other pitchers' changeups and has some natural sink to it. Their slider (take this with a grain of salt because they've only thrown 1 of them in 2025) is basically never swung at and missed compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders and has primarily 12-6 movement.