St. Louis Cardinals
Although they have not thrown an MLB pitch in 2026, JoJo Romero threw 3,989 pitches that were 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 relied primarily on their Slider (83mph), Sinker (94mph) and Change (87mph), also mixing in a Fourseam Fastball (94mph). He also rarely threw a Cutter (90mph).
In 2025, compared to other LHP:
Their slider sweeps across the zone and has exceptional depth. Their sinker has heavy sinking action, generates a very high amount of groundballs compared to other pitchers' sinkers, has well above average velo and has slight armside run. Their change is thrown extremely hard, dives down out of the zone and results in many more groundballs 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 2 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' cutters, has heavy sink, is blazing fast, is an extreme flyball pitch compared to other pitchers' cutters and has strong cutting action.