Detroit Tigers
Jack Flaherty has thrown 15,856 pitches that have been tracked by the PITCHf/x system between 2017 and 2025, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2025, they have relied primarily on their Fourseam Fastball (94mph) and Slider (85mph), also mixing in a Curve (78mph), Change (87mph) and Sinker (92mph). He also rarely throws a Cutter (87mph).
In 2025, 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 essentially average velo and has slightly less natural movement than typical. Their slider has short glove-side cut, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. Their curve generates an extremely high number of swings & misses compared to other pitchers' curves, has a sharp downward bite, results in somewhat more groundballs compared to other pitchers' curves and has slight glove-side movement. Their change is slightly firmer than usual and has some natural sink to it. Their sinker (take this with a grain of salt because they've only thrown 16 of them in 2025) is an extreme flyball pitch compared to other pitchers' sinkers and has some natural sinking action. Their cutter (take this with a grain of salt because they've only thrown 1 of them in 2025) has heavy sink, is basically never swung at and missed compared to other pitchers' cutters, has extreme cut action and is an extreme flyball pitch compared to other pitchers' cutters.