Non-MLB
Although they have not thrown an MLB pitch in 2026, Zach Muckenhirn threw 1,449 pitches that were tracked by the PITCHf/x system between 2022 and 2024, including pitches thrown in the MLB Regular Season, The World Baseball Classic, Spring Training and Fall/Winter Ball. In 2024, they relied primarily on their Fourseam Fastball (90mph) and Change (83mph). He also rarely threw a Slider (83mph).
In 2024, compared to other LHP:
Their fourseam fastball has essentially average velo and has some added backspin. Their change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups and dives down out of the zone. Their slider (take this with a grain of salt because they've only thrown 6 of them in 2024) generates an extremely high number of swings & misses compared to other pitchers' sliders, results in more flyballs compared to other pitchers' sliders, has primarily 12-6 movement and has some two-plane movement.