Non-MLB
Although they have not thrown an MLB pitch in 2026, Gregory Santos threw 2,317 pitches that were tracked by the PITCHf/x system between 2021 and 2025, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2025, they relied primarily on their Slider (89mph) and Sinker (97mph).
In 2025, compared to other RHP:
Their slider is thrown extremely hard, generates fewer whiffs/swing 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, generates a high number of swings & misses compared to other pitchers' sinkers, has surprisingly little armside run and has some natural sinking action.