Although he has not thrown an MLB pitch in 2020, Collin McHugh threw 13,939 pitches that were tracked by the PITCHf/x system between 2011 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason, Spring Training and Fall/Winter Ball. In 2019, he relied primarily on his Slider (80mph) and Fourseam Fastball (91mph), also mixing in a Cutter (87mph) and Curve (75mph). He also rarely threw a Change (84mph) and Sinker (89mph).
Basic description of 2019 pitches compared to other RHP:
His slider comes in below hitting speed, sweeps across the zone, results in somewhat more flyballs compared to other pitchers' sliders and has some two-plane movement. His fourseam fastball has slight armside run and has slightly below average velo. His cutter generates fewer whiffs/swing compared to other pitchers' cutters and has some natural sink. His curve results in more flyballs compared to other pitchers' curves, has a sharp downward bite, has slight glove-side movement and has slightly below average velo. His change generates fewer whiffs/swing compared to other pitchers' changeups and has slight armside fade. His sinker (take this with a grain of salt because he's only thrown 10 of them in 2019) is basically never swung at and missed compared to other pitchers' sinkers, is an extreme flyball pitch compared to other pitchers' sinkers, has below average velo and has slight armside run.