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.
Jack Johnson: C/1B, (2025) Bishop Feehan, MA. 5-foot-11, 200-pound solid athletic frame. Athletic and projectable during batting practice, the right-handed hitter had an exit velocity of 85 mph. (67.3 mph bat speed average). (20.9 mph hand speed average). Began in a balanced athletic stance with a small load, then used a small stride. Bat speed is developing, shows a flat long swing plane and good extension on his finish. In the round he found multiple barrels with loud contact. Gap to gap aggressive approach. While catching, his best recorded velocity during throw downs was clocked at 71 mph; shows developing consistent feet, a clean natural transfer, and developing soft hands. Showed a high ¾ slot and consistent accuracy to the bag.
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Jack Johnson: C/1B, (2025) Bishop Feehan, MA. 5-foot-11, 200-pound solid athletic frame. Athletic and projectable during batting practice, the right-handed hitter had an exit velocity of 85 mph. (67.3 mph bat speed average). (20.9 mph hand speed average). Began in a balanced athletic stance with a small load, then used a small stride. Bat speed is developing, shows a flat long swing plane and good extension on his finish. In the round he found multiple barrels with loud contact. Gap to gap aggressive approach. While catching, his best recorded velocity during throw downs was clocked at 71 mph; shows developing consistent feet, a clean natural transfer, and developing soft hands. Showed a high ¾ slot and consistent accuracy to the bag.
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