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.
Bobby Rapp, Loyola High School (CA), 2026 Positional Profile: SS/2B Body: 5-10, 160-pounds. Wirey frame with room to add strength. Hit: RHH. Slightly open stance with hands by his back shoulder. Small toe tap before firing through the zone. Higher launch angle that produces a lot of fly balls. 64.8 mph bat speed with 8 G's of rotational acceleration. Power: 90 max exit velocity, averaged 79.4 mph. 297' max distance. Consistent fly ball hitter projects as gap to gap power with added strength. Arm: RH. INF-80 mph. Low three quarters release. Short arm path. Defense: Athletic footwork throughout the play. ATH: Steady body control throughout. 23.10 max vertical.
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Positional Profile: SS/2B
Body: 5-10, 160-pounds. Wirey frame with room to add strength.
Hit: RHH. Slightly open stance with hands by his back shoulder. Small toe tap before firing through the zone. Higher launch angle that produces a lot of fly balls. 64.8 mph bat speed with 8 G's of rotational acceleration.
Power: 90 max exit velocity, averaged 79.4 mph. 297' max distance. Consistent fly ball hitter projects as gap to gap power with added strength.
Arm: RH. INF-80 mph. Low three quarters release. Short arm path.
Defense: Athletic footwork throughout the play.
ATH: Steady body control throughout. 23.10 max vertical.