Non-MLB
Although they have not thrown an MLB pitch in 2024, Alfredo Aceves threw 6,041 pitches that were tracked by the PITCHf/x system between 2008 and 2014, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2014, they relied primarily on their Fourseam Fastball (94mph) and Curve (84mph), also mixing in a Cutter (91mph) and Change (85mph). He also rarely threw a Sinker (93mph), Splitter (88mph) and Slider (85mph).
In 2014, compared to other RHP:
Their fourseam fastball generates fewer whiffs/swing compared to other pitchers' fourseamers, results in more flyballs compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. Their curve is thrown extremely hard and generates more whiffs/swing compared to other pitchers' curves. Their cutter generates a high number of swings & misses compared to other pitchers' cutters, is an extreme flyball pitch compared to other pitchers' cutters and has well above average velo. Their change generates fewer whiffs/swing compared to other pitchers' changeups. Their sinker (take this with a grain of salt because they've only thrown 12 of them in 2014) is an extreme flyball pitch compared to other pitchers' sinkers and has slightly above average velo. Their splitter (take this with a grain of salt because they've only thrown 8 of them in 2014) generates an extremely high number of swings & misses compared to other pitchers' splitters, is an extreme flyball pitch compared to other pitchers' splitters, is much firmer than usual, has some natural sink to it and has slight armside fade. Their slider (take this with a grain of salt because they've only thrown 1 of them in 2014) is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth and is an extreme flyball pitch compared to other pitchers' sliders.