AJ
Hemmelgarn

8/3/14
6-foot-1, 160-pound thin body frame. From the mound his delivery requires regular effort, he uses quick armspeed coming from an upper ¾ arm slot. His fastball was between 79-82 mph. Curveball showed sharp downward break at 70-73 mph. He also threw a straight changeup using fastball armspeed at 73-74 mph.

6/2/14
6-foot, 155-pound prospect with thin, athletic frame. Throws with some quickness through a high 3/4 arm slot. Long arm action. Fastball shows ASR at 80-82 mph. Showed two types of breaking balls. A 66-68 mph curveball with 12/6 type action and a harder 72-74 mph slider with later break to it. Also uses a 74 mph changeup.

2/23/14
6-foot, 155-pound prospect with long, lanky frame. Projects best as a pitcher at the next level. Throws with long, loose arm action through high ¾ arm slot. Regular effort to his delivery. Fastball sat at 79-81 mph mph with arm side run. Breaking ball shows 11/5 action at 64-67 mph. Good two-plane movement. Chnageup is thrown near fastball arm speed at 70-71 mph with similar movement to his fastball. Across the infield, he reached a top velocity of 75 mph through a low ¾ to ¾ arm slot. Average hands and feet. At the plate, he starts from an open stance with a bitch of a crouch. Short stride. Slight uphill path to the ball. Top exit velocity of 74 mph. Ran a 7.44.

9/22/13
6-foot-0, 150 pounds with a slim, athletic frame. Two way player.  In the field, he shows above average hands and average arm strength.  Took good routes to the ball.  Topped out at 72 mph across the infield.  At the plate, he uses a straight on stance with short stride.  Smooth load.  Showed the ability to drive the ball to all fields.  Linedrive/contact type hitter.  On the mound, he throws from a high 3/4 slot with short arm action.  Somewhat quick delivery.  His fastball offers some arm-side run while sitting at 74-77 mph.  Also used a 64-69 mph curveball that showed gradual 11/5 movement.

Hemmelgarn is a long and lanky prospect. In the field, he needs to improve his footwork and play through the baseball. He registered a top velocity of 68 mph while throwing off his back leg. At the plate, the right-handed hitter is a contact hitter that lacks overall power due to his size and strength. He registered a 7.97 60-yard dash.