07/20/2015 - 2015 Under Armour Showcase: Baseball Factory's National West Walker showed only on the mound where he has improved his abilities with a tremendous upside. Command / control are tremendous as he attacks hitters, throwing a lot of strikes as he works to get ahead of hitters through a quick tempo and polished delivery. Arm action is loose and quick, working well to the plate. Arm strength has improved, showing at a pro level as he topped out at 90 mph. Fastball showed range of 87-90 mph with arm side run. Breaking ball displays 11/5 shape with late / sharp break and shows as an outstanding pitch that will get outs at the next level. He shows off his athletic abilities on holding runners as he controls the running game. Nathan will get looks from the top collegiate coaches with his abilities on the mound with makings of a solid draft type guy in 2016.