Although he has not thrown an MLB pitch in 2018, Felix Hernandez threw 34,098 pitches that were tracked by the PITCHf/x system between 2007 and 2017, including pitches thrown in the MLB Regular Season, the MLB Postseason, The World Baseball Classic and Spring Training. In 2017, he relied primarily on his Change (87mph), Sinker (91mph), Fourseam Fastball (91mph) and Curve (80mph), also mixing in a Slider (85mph).
Basic description of 2017 pitches compared to other RHP:
His change dives down out of the zone, is much firmer than usual and has slight cut action. His sinker is basically never swung at and missed compared to other pitchers' sinkers and has less armside run than typical. His fourseam fastball has less armside movement than typical, has some natural sinking action and has slightly below average velo. His curve is slightly harder than usual. His slider is basically never swung at and missed compared to other pitchers' sliders and has less than expected depth.