Chicago Cubs
Although they have not thrown an MLB pitch in 2024, Keegan Thompson threw 3,920 pitches that were tracked by the PITCHf/x system between 2021 and 2023, all of them occuring in the MLB Regular Season. In 2023, they relied primarily on their Fourseam Fastball (94mph) and Cutter (89mph), also mixing in a Curve (82mph) and Slider (84mph). He also rarely threw a Change (88mph).
In 2023, compared to other RHP:
Their fourseam fastball has less armside movement than typical, has essentially average velo and results in somewhat more flyballs compared to other pitchers' fourseamers. Their cutter has heavy sink, generates a high number of swings & misses compared to other pitchers' cutters and has strong cutting action. Their curve generates a high number of swings & misses compared to other pitchers' curves, is much harder than usual, has a sharp downward bite and has primarily 12-6 movement. Their slider sweeps across the zone, generates a high number of swings & misses compared to other pitchers' sliders, results in more flyballs compared to other pitchers' sliders and has some two-plane movement. Their change (take this with a grain of salt because they've only thrown 10 of them in 2023) is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' changeups and results in more flyballs compared to other pitchers' changeups.