Washington Nationals
Although they have not thrown an MLB pitch in 2025, Michael Rucker threw 2,965 pitches that were tracked by the PITCHf/x system between 2021 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they relied primarily on their Fourseam Fastball (95mph) and Cutter (89mph), also mixing in a Curve (81mph) and Slider (85mph). He also rarely threw a Sinker (94mph) and Change (89mph).
In 2024, compared to other RHP:
Their fourseam fastball has some natural sinking action, has slightly above average velo and has slightly less natural movement than typical. Their cutter has heavy sink, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' cutters, generates more whiffs/swing compared to other pitchers' cutters and has strong cutting action. Their curve is a real worm killer that generates an extreme number of groundballs compared to other pitchers' curves, has a sharp downward bite, is slightly harder than usual and has slight glove-side movement. Their slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders and has exceptional depth. Their sinker results in somewhat more flyballs compared to other pitchers' sinkers, has slightly above average velo and has some natural sinking action. Their change (take this with a grain of salt because they've only thrown 11 of them in 2024) is thrown extremely hard, generates fewer whiffs/swing compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.