Washington Nationals
Trevor Williams has thrown 16,250 pitches that have been tracked by the PITCHf/x system between 2016 and 2025, including pitches thrown in the MLB Regular Season and Spring Training. In 2025, they have relied primarily on their Slider (78mph) and Fourseam Fastball (88mph), also mixing in a Change (81mph) and Sinker (87mph).
In 2025, compared to other RHP:
Their slider comes in below hitting speed, results in more flyballs compared to other pitchers' sliders, has short glove-side cut and has less than expected depth. Their fourseam fastball comes in below hitting speed, has heavy sinking action and has much less armside movement than typical. Their change generates an extremely high number of swings & misses compared to other pitchers' changeups, dives down out of the zone, has slight armside fade and has slightly below average velo. Their sinker is so slow that it is substantially gravitational, has heavy sinking action, is basically never swung at and missed compared to other pitchers' sinkers and results in somewhat more flyballs compared to other pitchers' sinkers.