Detroit Tigers
Sean Guenther has thrown 2,311 pitches that have been tracked by the PITCHf/x system between 2021 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Sinker (90mph), Change (83mph) and Slider (79mph). He also rarely throws a Fourseam Fastball (91mph).
In 2025, compared to other LHP:
Their sinker has heavy sinking action, has less armside run than typical and results in somewhat more groundballs compared to other pitchers' sinkers. Their change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups, dives down out of the zone and generates more whiffs/swing compared to other pitchers' changeups. Their slider sweeps across the zone, has exceptional depth, generates a very high amount of groundballs compared to other pitchers' sliders and has below average velo. Their fourseam fastball (take this with a grain of salt because they've only thrown 9 of them in 2025) generates an extremely high number of swings & misses compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has less armside movement than typical, has some natural sinking action and has essentially average velo.