Chicago Cubs
Although they have not thrown an MLB pitch in 2025, Keegan Thompson threw 4,876 pitches that were tracked by the PITCHf/x system between 2021 and 2024, all of them occuring in the MLB Regular Season. In 2024, they relied primarily on their Fourseam Fastball (93mph) and Cutter (90mph), also mixing in a Curve (82mph) and Slider (84mph). He also rarely threw a Change (89mph).
In 2024, compared to other RHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has much less armside movement than typical, has some natural sinking action and has essentially average velo. Their cutter has heavy sink, has extreme cut action, results in somewhat more flyballs compared to other pitchers' cutters and has slightly above average velo. Their curve has an exceptional bite, generates an extremely high number of swings & misses compared to other pitchers' curves, generates a very high amount of groundballs compared to other pitchers' curves and is much harder than usual. Their slider sweeps across the zone, generates more whiffs/swing compared to other pitchers' sliders, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their change is thrown extremely hard, is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.