Roberto Hernandez has thrown 19,075 pitches that have been tracked by the PITCHf/x system between 2007 and 2016, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2016, he has relied primarily on his Sinker (91mph) and Change (85mph), also mixing in a Slider (86mph) and Fourseam Fastball (90mph).
Basic description of 2016 pitches compared to other RHP:
His sinker generates an extremely high number of swings & misses compared to other pitchers' sinkers and results in somewhat more flyballs compared to other pitchers' sinkers. His change results in somewhat more flyballs compared to other pitchers' changeups, has slight armside fade and has some natural sink to it. His slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, is basically never swung at and missed compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement. His fourseam fastball (take this with a grain of salt because he's only thrown 15 of them in 2016) has below average velo, has some natural sinking action and has slight armside run.