The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Jaylen Velez: 1B, (2024) Sport and Medical Sciences Academy, CT. 5-foot-10, 230-pound athletic mature build. Advanced in the box, Velez had a max exit velocity of 87 mph. (67.4 mph bat speed average). (19.1 mph hand speed average). Started in an athletic closed stance with a smooth rhythmic load, then used a controlled short stride. Bat speed is electric, shows a short simple swing plane and good extension on his high finish. Produced tons of loud contact and found multiple barrels. Gap to gap line drive approach. Above average while in the infield, made throws up to 72 mph; had soft next level hands, fluid athletic footwork, and a clean quick exchange. Laterally, movements were average and fielded the ball out front. Consistent accuracy to the bag, used a ¾ slot with a short quick arm action.
Exit Velocity: 87 mph
Arm Velocity: 72 mph
30-Yard Dash: 4.40
2/05/22
5-foot-9, 214-pound solid sturdy frame. Smooth above average in the box, the left-handed hitter had a max exit velocity of 86 mph. (64.8 mph bat speed average). (18.8 mph hand speed average). Begins in a balanced athletic stance with a smooth tight load, then uses a controlled toe tap stride. Bat speed is explosive raw, exhibits a short rotational swing plane and level finish. He found multiple barrels with loud contact. Up the middle line drive approach. Projectable in the infield, his position velocity was registered at 63 mph; showed consistent sure hands, a natural exchange, and developing feet.Movements laterally were developing and he fields the ball out front. Consistent accuracy to the bag, used a short consistent arm action and a high ¾ slot.
Exit Velocity: 86 mph
Arm Velocity: 63 mph
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Jaylen Velez: 1B, (2024) Sport and Medical Sciences Academy, CT. 5-foot-10, 230-pound athletic mature build. Advanced in the box, Velez had a max exit velocity of 87 mph. (67.4 mph bat speed average). (19.1 mph hand speed average). Started in an athletic closed stance with a smooth rhythmic load, then used a controlled short stride. Bat speed is electric, shows a short simple swing plane and good extension on his high finish. Produced tons of loud contact and found multiple barrels. Gap to gap line drive approach. Above average while in the infield, made throws up to 72 mph; had soft next level hands, fluid athletic footwork, and a clean quick exchange. Laterally, movements were average and fielded the ball out front. Consistent accuracy to the bag, used a ¾ slot with a short quick arm action.
Exit Velocity: 87 mph
Arm Velocity: 72 mph
30-Yard Dash: 4.40
5-foot-9, 214-pound solid sturdy frame. Smooth above average in the box, the left-handed hitter had a max exit velocity of 86 mph. (64.8 mph bat speed average). (18.8 mph hand speed average). Begins in a balanced athletic stance with a smooth tight load, then uses a controlled toe tap stride. Bat speed is explosive raw, exhibits a short rotational swing plane and level finish. He found multiple barrels with loud contact. Up the middle line drive approach. Projectable in the infield, his position velocity was registered at 63 mph; showed consistent sure hands, a natural exchange, and developing feet.Movements laterally were developing and he fields the ball out front. Consistent accuracy to the bag, used a short consistent arm action and a high ¾ slot.
Exit Velocity: 86 mph
Arm Velocity: 63 mph