Oakland Athletics
Jason Alexander has thrown 4,489 pitches that have been tracked by the PITCHf/x system between 2019 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Sinker (90mph) and Change (79mph), also mixing in a Slider (79mph) and Fourseam Fastball (92mph). He also rarely throws a Cutter (86mph).
In 2025, compared to other RHP:
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 below average velo. Their change comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' changeups, dives down out of the zone, results in somewhat more flyballs compared to other pitchers' changeups and has slight armside fade. Their slider comes in below hitting speed, sweeps across the zone and is an extreme flyball pitch compared to other pitchers' sliders. Their fourseam fastball (take this with a grain of salt because they've only thrown 10 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action, has an obvious tail, is an extreme flyball pitch compared to other pitchers' fourseamers and has essentially average velo. Their cutter (take this with a grain of salt because they've only thrown 6 of them in 2025) has heavy sink, is basically never swung at and missed compared to other pitchers' cutters, is an extreme flyball pitch compared to other pitchers' cutters and has slightly below average velo.