Houston Astros
Seth Martinez has thrown 2,346 pitches that have been tracked by the PITCHf/x system between 2021 and 2024, including pitches thrown in the MLB Regular Season and Spring Training. In 2024, they have relied primarily on their Slider (79mph), Sinker (90mph) and Fourseam Fastball (91mph), also mixing in a Change (85mph). He also rarely throws a Curve (77mph).
In 2024, compared to other RHP:
Their slider comes in below hitting speed, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, sweeps across the zone and has less than expected depth. Their sinker has heavy sinking action, generates a high number of swings & misses compared to other pitchers' sinkers and has slightly below average velo. Their fourseam fastball has heavy sinking action, generates more whiffs/swing compared to other pitchers' fourseamers, has slight armside run and has slightly below average velo. Their change generates an extremely high number of swings & misses compared to other pitchers' changeups and dives down out of the zone. Their curve (take this with a grain of salt because they've only thrown 1 of them in 2024) is basically never swung at and missed compared to other pitchers' curves, results in more flyballs compared to other pitchers' curves and has slight glove-side movement.