Seattle Mariners
Jhonathan Diaz has thrown 3,214 pitches that have been tracked by the PITCHf/x system between 2021 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they have relied primarily on their Slider (80mph) and Sinker (88mph), also mixing in a Change (81mph) and Curve (74mph). He also rarely throws a Fourseam Fastball (90mph).
In 2024, compared to other LHP:
Their slider sweeps across the zone, generates more whiffs/swing compared to other pitchers' sliders, has below average velo, results in somewhat more groundballs compared to other pitchers' sliders and has some two-plane movement. Their sinker has heavy sinking action, is basically never swung at and missed compared to other pitchers' sinkers, has less armside run than typical, results in somewhat more groundballs compared to other pitchers' sinkers and has slightly below average velo. Their change dives down out of the zone and results in more flyballs compared to other pitchers' changeups. Their curve has an exceptional bite, has slight glove-side movement and has slightly below average velo. Their fourseam fastball (take this with a grain of salt because they've only thrown 17 of them in 2024) has heavy sinking action, is an extreme flyball pitch compared to other pitchers' fourseamers and has essentially average velo.