David Hess has thrown 2,957 pitches that have been tracked by the PITCHf/x system between 2018 and 2019, all of them occuring in the MLB Regular Season. In 2019, he has relied primarily on his Fourseam Fastball (93mph) and Slider (84mph), also mixing in a Change (86mph). He also rarely throws a Curve (78mph) and Sinker (93mph).
Basic description of 2019 pitches compared to other RHP:
His fourseam fastball has less armside movement than typical and has essentially average velo. His slider is an extreme flyball pitch compared to other pitchers' sliders. His change is basically never swung at and missed compared to other pitchers' changeups, is slightly firmer than usual and results in somewhat more flyballs compared to other pitchers' changeups. His curve generates more whiffs/swing compared to other pitchers' curves and has little depth. His sinker has less armside run than typical, has little sinking action compared to a true sinker and results in somewhat more flyballs compared to other pitchers' sinkers.