Felix Hernandez has thrown 31,318 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, The World Baseball Classic and Spring Training. In 2016, he has relied primarily on his Sinker (91mph), Change (88mph) and Curve (80mph), also mixing in a Fourseam Fastball (91mph) and Slider (85mph). He also rarely throws a Cutter (90mph).
Basic description of 2016 pitches compared to other RHP:
His sinker is a prototypical pitch with few remarkable qualities. His change is a real worm killer that generates an extreme number of groundballs compared to other pitchers' changeups, dives down out of the zone and is much firmer than usual. His curve has a sharp downward bite and has slight glove-side movement. His fourseam fastball generates fewer whiffs/swing compared to other pitchers' fourseamers, results in many more groundballs compared to other pitchers' fourseamers, has some natural sinking action, has slightly below average velo and has slightly less natural movement than typical. His slider is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, generates fewer whiffs/swing compared to other pitchers' sliders and has some two-plane movement. His cutter (take this with a grain of salt because he's only thrown 19 of them in 2016) is an extreme flyball pitch compared to other pitchers' cutters, has surprisingly little cutting action and has slightly above average velo.