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.
Christian Bumpus: 3B/OF, (2025) Xaverian, MA. 6-foot, 170-pound lean athletic build. Athletic and capable during batting practice, the right-handed hitter recorded an exit velocity of 80 mph. (60.1 mph bat speed average). (19.2 mph hand speed average). Started in a balanced wide stance with a small load, then used a small stride. Has a flat loose swing plane, developing bat speed and level finish. Produced loud contact and found some barrels. Line drive approach. Athletic in the infield, his best throw was recorded at 77 mph; has consistent feet, a natural exchange, and developing soft hands. Movements laterally were athletic and he fields the ball out front. Used a consistent arm action with a high ¾ slot while showing consistent accuracy to the base.
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Christian Bumpus: 3B/OF, (2025) Xaverian, MA. 6-foot, 170-pound lean athletic build. Athletic and capable during batting practice, the right-handed hitter recorded an exit velocity of 80 mph. (60.1 mph bat speed average). (19.2 mph hand speed average). Started in a balanced wide stance with a small load, then used a small stride. Has a flat loose swing plane, developing bat speed and level finish. Produced loud contact and found some barrels. Line drive approach. Athletic in the infield, his best throw was recorded at 77 mph; has consistent feet, a natural exchange, and developing soft hands. Movements laterally were athletic and he fields the ball out front. Used a consistent arm action with a high ¾ slot while showing consistent accuracy to the base.