Seattle Mariners
Michael Rucker has thrown 3,004 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) and Curve (82mph), also mixing in a Cutter (88mph), Slider (87mph) and Sinker (95mph).
In 2026, compared to other RHP:
Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has some natural sinking action, has well above average velo, results in somewhat more groundballs compared to other pitchers' fourseamers and has slightly less natural movement than typical. Their curve (take this with a grain of salt because they've only thrown 8 of them in 2026) has sweeping glove-side movement, is much harder than usual, results in more flyballs compared to other pitchers' curves and has a sharp downward bite. Their cutter (take this with a grain of salt because they've only thrown 4 of them in 2026) generates an extremely high number of swings & misses compared to other pitchers' cutters, has heavy sink, is an extreme flyball pitch compared to other pitchers' cutters and has strong cutting action. Their slider (take this with a grain of salt because they've only thrown 4 of them in 2026) has exceptional depth, is an extreme flyball pitch compared to other pitchers' sliders and is much harder than usual. Their sinker (take this with a grain of salt because they've only thrown 3 of them in 2026) has heavy sinking action, is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has well above average velo and has less armside run than typical.