The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
82.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
78.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.30
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
80.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
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 Kelleher: OF, (2026) St Sebastian’s School, MA. 5-foot-8, 158-pound athletic lean build. Capable and projectable in the box, Kelleher's best exit velocity was 84 mph. (68.2 mph bat speed average). (21.3 mph hand speed average). Started in a balanced athletic stance with a small load, then used a toe tap stride. Bat speed is developing, exhibits a flat long swing plane and good extension on his finish. Had loud contact and found some barrels. Gap to gap approach. Projectable athletic from the outfield, he showed the ability to throw at velocities up to 78 mph; has a natural exchange, consistent athletic feet, and developing soft hands. Fields the ball out front, movements laterally were athletic. Had a consistent arm action and a high ¾ slot with consistent accuracy to the base. (Max spin ; Avg ).
8/02/22
Jack Kelleher: OF, (2026) St Sebastian’s School, MA. 5-foot-8, 155-pound lean athletic frame. Projectable and athletic during batting practice, Kelleher's best exit velocity was 83 mph. (59.9 mph bat speed average). (17.6 mph hand speed average). Started in a balanced open stance with a controlled load, then used a closed small stride. Bat speed is developing, has a flat loose swing plane and level finish. He barreled up multiple balls with a lot of loud contact. Gap to gap approach. Athletic and capable in the outfield, his throws to the bases were maxed out at 80 mph; shows athletic developing feet, soft developing hands, and a clean developing exchange. Movements laterally were developing, athletic and he fields the ball out front. Showed consistent accuracy to the bag with a high ¾ slot and a loose arm action. In the 60-yard dash, recorded a time of 7.3. (Max spin ; Avg ).
2/21/22
Jack Kelleher: OF, (2026) out of St Sebastian ½ School, MA. is a 5-foot-8, 155-pound outfield prospect. At the plate, the left-handed hitter's best exit velocity was 85 MPH with a (65.6 mph bat speed average) and (20.4 mph hand speed average). He sets up in a wide, balanced stance with the hands set just off the back shoulder. A small leg kick triggers a swing that takes a simple, flat path through the hitting zone. Kelleher also showed quick hands and the ability to use the middle of the field.From the outfield, his best throws reached 77 MPH while showing he had sure hands, a clean exchange, and consistent, smooth footwork during the defensive workout.
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Jack Kelleher: OF, (2026) St Sebastian’s School, MA. 5-foot-8, 158-pound athletic lean build. Capable and projectable in the box, Kelleher's best exit velocity was 84 mph. (68.2 mph bat speed average). (21.3 mph hand speed average). Started in a balanced athletic stance with a small load, then used a toe tap stride. Bat speed is developing, exhibits a flat long swing plane and good extension on his finish. Had loud contact and found some barrels. Gap to gap approach. Projectable athletic from the outfield, he showed the ability to throw at velocities up to 78 mph; has a natural exchange, consistent athletic feet, and developing soft hands. Fields the ball out front, movements laterally were athletic. Had a consistent arm action and a high ¾ slot with consistent accuracy to the base. (Max spin ; Avg ).
Jack Kelleher: OF, (2026) St Sebastian’s School, MA. 5-foot-8, 155-pound lean athletic frame. Projectable and athletic during batting practice, Kelleher's best exit velocity was 83 mph. (59.9 mph bat speed average). (17.6 mph hand speed average). Started in a balanced open stance with a controlled load, then used a closed small stride. Bat speed is developing, has a flat loose swing plane and level finish. He barreled up multiple balls with a lot of loud contact. Gap to gap approach. Athletic and capable in the outfield, his throws to the bases were maxed out at 80 mph; shows athletic developing feet, soft developing hands, and a clean developing exchange. Movements laterally were developing, athletic and he fields the ball out front. Showed consistent accuracy to the bag with a high ¾ slot and a loose arm action. In the 60-yard dash, recorded a time of 7.3. (Max spin ; Avg ).
Jack Kelleher: OF, (2026) out of St Sebastian ½ School, MA. is a 5-foot-8, 155-pound outfield prospect. At the plate, the left-handed hitter's best exit velocity was 85 MPH with a (65.6 mph bat speed average) and (20.4 mph hand speed average). He sets up in a wide, balanced stance with the hands set just off the back shoulder. A small leg kick triggers a swing that takes a simple, flat path through the hitting zone. Kelleher also showed quick hands and the ability to use the middle of the field.From the outfield, his best throws reached 77 MPH while showing he had sure hands, a clean exchange, and consistent, smooth footwork during the defensive workout.