Pittsburgh Pirates
Mitch Keller has thrown 14,240 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 Slider (85mph) and Fourseam Fastball (94mph), also mixing in a Sinker (93mph), Change (89mph) and Curve (78mph). He also rarely throws a Cutter (92mph).
In 2025, compared to other RHP:
Their slider sweeps across the zone, results in somewhat more groundballs compared to other pitchers' sliders and has some two-plane movement. Their fourseam fastball has some natural sinking action and has slightly above average velo. Their sinker has some natural sinking action. Their change is thrown extremely hard, dives down out of the zone, results in many more groundballs compared to other pitchers' changeups and has slight armside fade. Their curve has an exceptional bite, generates fewer whiffs/swing compared to other pitchers' curves and has slight glove-side movement. Their cutter (take this with a grain of salt because they've only thrown 3 of them in 2025) is basically never swung at and missed compared to other pitchers' cutters, is blazing fast and is an extreme flyball pitch compared to other pitchers' cutters.