Large frame with thick lower half and long limbs; Room for strength on upper half.
Semi-windup with 3/4 arm slot; Long in back with full arm circle; Average arm speed with extension out front; Recoil in follow through with slight crossfire to landing; Tendency to over-rotate and fall off mound to 3rd. In stretch, mechanics take a step backward with inconsistent hand separation and rushes to plate.
Average velocity with arm-side run and down plane; Inconsistencies with delivery and long limbs lead to below average command but flashes ability to spot to both corners and up in zone when everything is right; Plenty of swing and miss to the pitch, gets on hitters quickly despite velocity.
2/8 shape that flashes late bite; Tends to get around pitch leaving it flat in zone; Still a work in progress but has a plan with the pitch and can throw it to both sides.
Present fringe offering; Inconsistent arm speed; Down action when thrown with authority; Lacks confidence in pitch.
Perdomo's size forces you to take notice of him when he steps on the mound. Command will be the determining factor with his ceiling. At times he will flash the ability to command the baseball to both sides of the plate and others he will lose it with his front shoulder flying open and arm dragging behind. When mechanics are in sync, he attacks hitters with his fastball/slider combination that induces strikeouts and weak contact. 2016 is a big developmental year for Perdomo and if the 21 year old can limit his walks while still striking out over a batter an inning, he could be in line for a promotion to High-A midsummer.