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.
Jake Ludwig: C/2B, (2025) Portage Central High School, MI. 5-foot-10, 165-pound. (64.8 mph bat speed average). (18.1 mph hand speed average). Begins in a wide stance with an active handsy load, then uses a toe tap stride. Created some loud contact and found some barrels. Capable while in the infield, registered his best throw across the diamond at 72 mph; had rhythmic fluid footwork, a natural exchange, and sure hands. Fielded the ball out front with athletic movement laterally. While catching, his best throw downs of the day reached a max velocity of 72 mph; showed a lengthy transfer, choppy feet, and firm hands. Has some flexibility.
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Jake Ludwig: C/2B, (2025) Portage Central High School, MI. 5-foot-10, 165-pound. (64.8 mph bat speed average). (18.1 mph hand speed average). Begins in a wide stance with an active handsy load, then uses a toe tap stride. Created some loud contact and found some barrels. Capable while in the infield, registered his best throw across the diamond at 72 mph; had rhythmic fluid footwork, a natural exchange, and sure hands. Fielded the ball out front with athletic movement laterally. While catching, his best throw downs of the day reached a max velocity of 72 mph; showed a lengthy transfer, choppy feet, and firm hands. Has some flexibility.