Seattle Mariners
Jesse Hahn has thrown 6,718 pitches that have been tracked by the PITCHf/x system between 2014 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Sinker (95mph), also mixing in a Slider (82mph) and Curve (79mph). He also rarely throws a Fourseam Fastball (95mph) and Change using a Circle Change grip (88mph).
In 2025, compared to other RHP:
Their sinker has heavy sinking action, has an obvious tail and has well above average velo. Their slider generates an extremely high number of swings & misses compared to other pitchers' sliders, sweeps across the zone, has exceptional depth, is an extreme flyball pitch compared to other pitchers' sliders and has below average velo. Their curve is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves, has sweeping glove-side movement and has a sharp downward bite. 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 slightly above average velo. Their change using a circle change grip (take this with a grain of salt because they've only thrown 9 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' changeups, dives down out of the zone, is much firmer than usual, has slight cut action and results in somewhat more flyballs compared to other pitchers' changeups.