Although they have not thrown an MLB pitch in 2023, Devin Williams threw 2,762 pitches that were tracked by the PITCHf/x system between 2019 and 2022, including pitches thrown in the MLB Regular Season and Spring Training. In 2022, they relied primarily on their Change (84mph) and Fourseam Fastball (94mph). He also rarely threw a Slider (87mph).
In 2022, compared to other RHP:
His change has an obvious armside fade, dives down out of the zone and generates a high number of swings & misses compared to other pitchers' changeups. His fourseam fastball generates an extremely high number of swings & misses compared to other pitchers' fourseamers, has essentially average velo and has slight armside run. His slider generates a high number of swings & misses compared to other pitchers' sliders, is an extreme flyball pitch compared to other pitchers' sliders, has much less depth than expected and is much harder than usual.