Collin McHugh has thrown 4,674 pitches that have been tracked by the PITCHf/x system between 2011 and 2015, including pitches thrown in the MLB Regular Season and Fall/Winter Ball. In 2015, he has relied primarily on his Slider (88mph), Fourseam Fastball (92mph) and Curve (75mph), also mixing in a Change (84mph). He also rarely throws a Sinker (89mph).
Basic description of 2015 pitches compared to other RHP:
His slider generates fewer whiffs/swing compared to other pitchers' sliders, is much harder than usual and has less than expected depth. His fourseam fastball generates a high number of swings & misses compared to other pitchers' fourseamers, has essentially average velo and results in somewhat more groundballs compared to other pitchers' fourseamers. His curve has a sharp downward bite, has slight glove-side movement and has slightly below average velo. His change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups and has slight armside fade. His sinker (take this with a grain of salt because he's only thrown 2 of them in 2015) 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 little sinking action compared to a true sinker.