Non-MLB
Although they have not thrown an MLB pitch in 2024, Jake Thompson threw 2,147 pitches that were tracked by the PITCHf/x system between 2016 and 2023, including pitches thrown in the MLB Regular Season and Fall/Winter Ball. In 2023, they relied primarily on their Change (80mph) and Sinker (85mph), also mixing in a Cutter (85mph), Curve (75mph), Slider (78mph) and Fourseam Fastball (85mph).
In 2023, compared to other RHP:
Their change has below average velo, results in somewhat more flyballs compared to other pitchers' changeups and has some natural sink to it. Their sinker is so slow that it is substantially gravitational, is an extreme flyball pitch compared to other pitchers' sinkers, generates fewer whiffs/swing compared to other pitchers' sinkers and has some natural sinking action. Their cutter generates a very high amount of groundballs compared to other pitchers' cutters, has below average velo, generates fewer whiffs/swing compared to other pitchers' cutters and has surprisingly little cutting action. Their curve (take this with a grain of salt because they've only thrown 18 of them in 2023) has below average velo, generates more whiffs/swing compared to other pitchers' curves, results in more flyballs compared to other pitchers' curves, has a sharp downward bite and has slight glove-side movement. Their slider (take this with a grain of salt because they've only thrown 18 of them in 2023) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth and results in more flyballs compared to other pitchers' sliders. Their fourseam fastball (take this with a grain of salt because they've only thrown 9 of them in 2023) comes in below hitting speed and has some natural sinking action.