Non-MLB
Although they have not thrown an MLB pitch in 2024, Rubby De La Rosa threw 7,404 pitches that were tracked by the PITCHf/x system between 2011 and 2023, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2023, they relied primarily on their Fourseam Fastball (92mph) and Slider (81mph), also mixing in a Change (87mph).
In 2023, compared to other RHP:
Their fourseam fastball (take this with a grain of salt because they've only thrown 5 of them in 2023) 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, has essentially average velo and has slight armside run. Their slider (take this with a grain of salt because they've only thrown 4 of them in 2023) is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth, is an extreme flyball pitch compared to other pitchers' sliders and has below average velo. Their change (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' changeups, results in more flyballs compared to other pitchers' changeups, is slightly firmer than usual, has slight armside fade and has some natural sink to it.