Non-MLB
Although they have not thrown an MLB pitch in 2024, Sam Dyson threw 5,813 pitches that were tracked by the PITCHf/x system between 2012 and 2019, including pitches thrown in the MLB Regular Season and Spring Training. In 2019, they relied primarily on their Sinker (94mph) and Cutter (91mph), also mixing in a Fourseam Fastball (94mph), Change (87mph) and Slider (83mph).
In 2019, compared to other RHP:
Their sinker has heavy sinking action, generates fewer whiffs/swing compared to other pitchers' sinkers, has slight armside run and has slightly above average velo. Their cutter generates a very high amount of groundballs compared to other pitchers' cutters, has well above average velo and has some natural sink. Their fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has heavy sinking action and has essentially average velo. Their change has an obvious armside fade, dives down out of the zone and is much firmer than usual. Their slider (take this with a grain of salt because they've only thrown 13 of them in 2019) is basically never swung at and missed compared to other pitchers' sliders, sweeps across the zone, has exceptional depth and is an extreme flyball pitch compared to other pitchers' sliders.