Chicago Cubs
Keegan Thompson has thrown 5,062 pitches that have been tracked by the PITCHf/x system between 2021 and 2025, all of them occuring in the MLB Regular Season. In 2025, they have relied primarily on their Fourseam Fastball (93mph) and Cutter (89mph), also mixing in a Slider (83mph) and Curve (81mph). He also rarely throws a Change (88mph).
In 2025, 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, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their cutter generates an extremely high number of swings & misses compared to other pitchers' cutters, has heavy sink, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' cutters and has extreme cut action. Their slider generates an extremely high number of swings & misses 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 curve has an exceptional bite, results in more flyballs compared to other pitchers' curves, is slightly harder than usual and has slight glove-side movement. Their change (take this with a grain of salt because they've only thrown 7 of them in 2025) is basically never swung at and missed compared to other pitchers' changeups, dives down out of the zone, is much firmer than usual and results in more flyballs compared to other pitchers' changeups.