Seattle Mariners
Michael Rucker has thrown 4,209 pitches that have been tracked by the PITCHf/x system between 2021 and 2026, including pitches thrown in the MLB Regular Season and Spring Training. In 2026, they have relied primarily on their Fourseam Fastball (96mph), Curve (82mph) and Cutter (90mph), also mixing in a Sinker (95mph) and Slider (87mph). He also rarely throws a Change (91mph).
In 2026, compared to other RHP:
Their fourseam fastball generates a high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action, has well above average velo and has slightly less natural movement than typical. Their curve has sweeping glove-side movement, generates more whiffs/swing compared to other pitchers' curves, is much harder than usual, results in many more groundballs compared to other pitchers' curves and has a sharp downward bite. Their cutter has heavy sink, results in somewhat more flyballs compared to other pitchers' cutters and has strong cutting action. Their sinker has well above average velo, has slight armside run and has some natural sinking action. Their slider has exceptional depth, is an extreme flyball pitch compared to other pitchers' sliders and is much harder than usual. Their change (take this with a grain of salt because they've only thrown 8 of them in 2026) is thrown extremely hard, generates an extremely high number of swings & misses compared to other pitchers' changeups, dives down out of the zone and results in more flyballs compared to other pitchers' changeups.