Trevor Hildenberger has thrown 2,037 pitches that have been tracked by the PITCHf/x system between 2016 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2019, he has relied primarily on his Change (78mph), Sinker (88mph) and Slider (77mph), also mixing in a Fourseam Fastball (91mph).
Basic description of 2019 pitches compared to other RHP:
His change comes in below hitting speed, dives down out of the zone, generates a high number of swings & misses compared to other pitchers' changeups and has slight armside fade. His sinker is so slow that it is substantially gravitational, has heavy sinking action, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers and has an obvious tail. His slider comes in below hitting speed, is basically never swung at and missed compared to other pitchers' sliders, has exceptional depth and is an extreme flyball pitch compared to other pitchers' sliders. His fourseam fastball (take this with a grain of salt because he's only thrown 15 of them in 2019) has an obvious tail, results in more flyballs compared to other pitchers' fourseamers, has some natural sinking action and has slightly below average velo.