Seattle Mariners
Gregory Santos has thrown 1,954 pitches that have been tracked by the PITCHf/x system between 2021 and 2024, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2024, they have relied primarily on their Slider (89mph) and Sinker (97mph).
In 2024, compared to other RHP:
Their slider is thrown extremely hard, is basically never swung at and missed compared to other pitchers' sliders, results in many more groundballs compared to other pitchers' sliders and has some two-plane movement. Their sinker is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, is thrown at a speed that's borderline unfair, has surprisingly little armside run, generates more whiffs/swing compared to other pitchers' sinkers and has some natural sinking action.