Pittsburgh Pirates
Mitch Keller has thrown 14,933 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 Fourseam Fastball (94mph) and Slider (85mph), also mixing in a Sinker (93mph), Change (89mph) and Curve (77mph). He also rarely throws a Cutter (92mph).
In 2025, compared to other RHP:
Their fourseam fastball has some natural sinking action and has essentially average velo. Their slider sweeps across the zone and has some two-plane movement. Their sinker results in somewhat more flyballs compared to other pitchers' sinkers and 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 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.