Although he has not thrown an MLB pitch in 2015, Wily Peralta threw 6,822 pitches that were tracked by the PITCHf/x system between 2011 and 2014, including pitches thrown in the MLB Regular Season and Spring Training. In 2014, he relied primarily on his Fourseam Fastball (96mph), Sinker (97mph) and Slider (86mph), also mixing in a Change (85mph).
Basic description of 2014 pitches compared to other RHP:
His fourseam fastball results in many more groundballs compared to other pitchers' fourseamers and has well above average velo. His sinker is thrown at a speed that's borderline unfair, generates a very high amount of groundballs compared to other pitchers' sinkers, has less armside run than typical and has little sinking action compared to a true sinker. His slider generates a very high amount of groundballs compared to other pitchers' sliders, has less than expected depth and has primarily 12-6 movement. His change generates more whiffs/swing compared to other pitchers' changeups, has slight cut action, has a lot of backspin and results in somewhat more flyballs compared to other pitchers' changeups.