Although he has not thrown an MLB pitch in 2020, Ryne Harper threw 970 pitches that were tracked by the PITCHf/x system between 2014 and 2019, including pitches thrown in the MLB Regular Season, Spring Training and Fall/Winter Ball. In 2019, he relied primarily on his Slider (76mph) and Fourseam Fastball (90mph), also mixing in a Curve (70mph). He also rarely threw a Change (77mph).
Basic description of 2019 pitches compared to other RHP:
His slider comes in below hitting speed, sweeps across the zone, has exceptional depth and results in more flyballs compared to other pitchers' sliders. His fourseam fastball has heavy sinking action, is straight as an arrow, has below average velo and results in many more groundballs compared to other pitchers' fourseamers. His curve comes in below hitting speed, has a sharp downward bite, results in somewhat more flyballs compared to other pitchers' curves and has slight glove-side movement. His change (take this with a grain of salt because he's only thrown 8 of them in 2019) comes in below hitting speed, is basically never swung at and missed compared to other pitchers' changeups, has surprising cut action, results in more flyballs compared to other pitchers' changeups and has some natural sink to it.