Pittsburgh Pirates
Mitch Keller has thrown 15,560 pitches that have been tracked by the PITCHf/x system between 2019 and 2026, including pitches thrown in the MLB Regular Season and Spring Training. In 2026, they have relied primarily on their Fourseam Fastball (94mph), Slider (82mph) and Sinker (92mph), also mixing in a Change (89mph) and Curve (78mph).
In 2026, compared to other RHP:
Their fourseam fastball is an extreme flyball pitch compared to other pitchers' fourseamers, has some natural sinking action and has essentially average velo. Their slider is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and has some two-plane movement. Their sinker generates a very high amount of groundballs compared to other pitchers' sinkers and has some natural sinking action. Their change is thrown extremely hard, dives down out of the zone, generates fewer whiffs/swing compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups. Their curve (take this with a grain of salt because they've only thrown 12 of them in 2026) has an exceptional bite, generates an extremely high number of swings & misses compared to other pitchers' curves and results in more flyballs compared to other pitchers' curves.