Although he has not thrown an MLB pitch in 2019, Scott Atchison threw 4,593 pitches that were tracked by the PITCHf/x system between 2007 and 2015, including pitches thrown in the MLB Regular Season and Spring Training. In 2015, he relied primarily on his Slider (86mph) and Fourseam Fastball (91mph), also mixing in a Curve (79mph).
Basic description of 2015 pitches compared to other RHP:
His slider generates fewer whiffs/swing compared to other pitchers' sliders, results in more flyballs compared to other pitchers' sliders and has less than expected depth. His fourseam fastball is basically never swung at and missed compared to other pitchers' fourseamers, is an extreme flyball pitch compared to other pitchers' fourseamers and has slightly below average velo. His curve results in more flyballs compared to other pitchers' curves and has a sharp downward bite.