06/05/2018 - 2018 Under Armour Showcase: Baseball Factory's National South Mack is an athletic RHP who is a prospect on the mound. Delivery is sound/repeatable as he shows good tempo through a strong balance point, allowing his arm action to work quick and free to the plate. Fastball shows a range of 88-91 mph with arm side run. Breaking ball displays 11/5 shape with late break. He maintains arm speed on his changeup, showing a plus feel for the pitch with sinking action. Off speed stuff show as quality pitches that will get outs at the next level. Command/control is tremendous as he locates well to both sides of the plate. Mack has big upside on the mound, getting looks from pro scouts with his abilities on the bump and should be a solid 2019 draft guy.