Houston Astros
Spencer Arrighetti has thrown 4,226 pitches that have been tracked by the PITCHf/x system between 2023 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (94mph) and Cutter (88mph), also mixing in a Curve (78mph), Change (85mph) and Slider (80mph). He also rarely throws a Sinker (93mph).
In 2025, 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 essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slight armside run. Their cutter generates an extremely high number of swings & misses compared to other pitchers' cutters, results in more flyballs compared to other pitchers' cutters, has some natural sink and has strong cutting action. Their curve has sweeping glove-side movement, generates more whiffs/swing compared to other pitchers' curves and results in somewhat more flyballs compared to other pitchers' curves. Their change dives down out of the zone, generates more whiffs/swing compared to other pitchers' changeups, results in more flyballs compared to other pitchers' changeups and has slight armside fade. Their slider comes in below hitting speed, generates an extremely high number of swings & misses compared to other pitchers' sliders, sweeps across the zone, is an extreme flyball pitch compared to other pitchers' sliders and has some two-plane movement. Their sinker (take this with a grain of salt because they've only thrown 8 of them in 2025) is basically never swung at and missed compared to other pitchers' sinkers, has an obvious tail, is an extreme flyball pitch compared to other pitchers' sinkers and has some natural sinking action.