Boston Red Sox
José De León has thrown 2,047 pitches that have been tracked by the PITCHf/x system between 2016 and 2025, including pitches thrown in the MLB Regular Season, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2025, they have relied primarily on their Fourseam Fastball (91mph), Cutter (84mph) and Change (83mph), also mixing in a Slider (77mph).
In 2025, compared to other RHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers and has slightly below average velo. Their cutter comes in below hitting speed, has heavy sink, has extreme cut action and is an extreme flyball pitch compared to other pitchers' cutters. Their change has an obvious armside fade, dives down out of the zone, generates a high number of swings & misses compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups. Their slider (take this with a grain of salt because they've only thrown 15 of them in 2025) comes in below hitting speed, 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.