Oakland Athletics
Although they have not thrown an MLB pitch in 2024, Scott Alexander threw 4,422 pitches that were tracked by the PITCHf/x system between 2014 and 2023, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2023, they relied primarily on their Sinker (93mph), also mixing in a Slider (83mph) and Change (86mph). He also rarely threw a Fourseam Fastball (92mph).
In 2023, compared to other LHP:
Their sinker has heavy sinking action, generates a very high amount of groundballs compared to other pitchers' sinkers, has less armside run than typical and has slightly above average velo. Their slider has exceptional depth. 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, is much firmer than usual and has slight cut action. Their fourseam fastball (take this with a grain of salt because they've only thrown 1 of them in 2023) has heavy sinking action, is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers, has less armside movement than typical and has essentially average velo.