Non-MLB
Although they have not thrown an MLB pitch in 2025, Rubby De La Rosa threw 7,413 pitches that were tracked by the PITCHf/x system between 2011 and 2024, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2024, they relied primarily on their Slider (80mph) and Fourseam Fastball (93mph).
In 2024, compared to other RHP:
Their slider (take this with a grain of salt because they've only thrown 5 of them in 2024) comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' sliders, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and has some two-plane movement. Their fourseam fastball (take this with a grain of salt because they've only thrown 4 of them in 2024) is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo.