Matt Harvey has thrown 13,190 pitches that have been tracked by the PITCHf/x system between 2011 and 2019, including pitches thrown in the MLB Regular Season, the MLB Postseason and Spring Training. In 2019, he has relied primarily on his Fourseam Fastball (94mph) and Slider (88mph), also mixing in a Curve (82mph) and Change (86mph). He also rarely throws a Sinker (94mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball has some natural sinking action, has essentially average velo, results in somewhat more flyballs compared to other pitchers' fourseamers and has slight armside run. His slider is thrown extremely hard, is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement. His curve has primarily 12-6 movement, is much harder than usual and results in somewhat more flyballs compared to other pitchers' curves. His change results in more flyballs compared to other pitchers' changeups, has a lot of backspin, is slightly firmer than usual and has slight armside fade. His sinker is a real worm killer that generates an extreme number of groundballs compared to other pitchers' sinkers, is basically never swung at and missed compared to other pitchers' sinkers, has surprisingly little armside run and has well above average velo.