St. Louis Cardinals
JoJo Romero has thrown 3,094 pitches that have been tracked by the PITCHf/x system between 2020 and 2025, including pitches thrown in the MLB Regular Season, The World Baseball Classic and Spring Training. In 2025, they have relied primarily on their Slider (83mph) and Sinker (93mph), also mixing in a Change (88mph) and Fourseam Fastball (94mph). He also rarely throws a Cutter (90mph).
In 2025, compared to other LHP:
Their slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, sweeps across the zone, generates more whiffs/swing compared to other pitchers' sliders and has some two-plane movement. Their sinker has heavy sinking action, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, has slight armside run and has slightly above average velo. Their change is thrown extremely hard, dives down out of the zone and results in somewhat more flyballs compared to other pitchers' changeups. Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action and has well above average velo. Their cutter (take this with a grain of salt because they've only thrown 1 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' cutters, is blazing fast, is an extreme flyball pitch compared to other pitchers' cutters, has some natural sink and has strong cutting action.