Boston Costley
Boston Costley




Inderkum (HS) • CA
5-9 • 150LBS • R/R
Travel Team: Downtown Baseball
2025 National

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2025 State

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Positional Profile: OF
Body: 5-9, 150-pounds. Lean strength and twitchy composition on medium sized body.
Hit: RHH. Tall set-up, medium width feet in even stance, bat held vertical off chest to start, smooth knee lift out to fairly firm stride foot landing, medium depth load. Lowers hands a bit from set-up position before firing to the ball, best when staying flat with top hand above the ball, can drive the ball, finishes in a reverse coil with weight shifting to his backside in a high two hand finish.
Power: 86 max exit velocity, 65.4 max bat speed, 20.6 max hand speed.
Arm: RH. OF - 88 mph. Powerful arm with release coming from compact backside arm action, gets lower body into the throw and drives back hip through.
Defense: Aggressive to the ball, gets in position to get ball underway with his top arm strength, footspeed clearly indicates range potential, makes decisive moves to the ball.
Run: 6.79 runner in the 60.


Bay Area World Series Underclass (6/4/21-6/6/21)

Offensive notes: Tall posture with high foot lift utilizing reciprocal kick back with direct hands on upward path. Aggressive swing and willing to let it fly. Able to backspin balls to LF and more the bottom hand worked better direction of the barrel. Showed similar aggressive approach with swings in game. Very twitchy attributes. 60-yard - 6.67 / EV mph - 86

Defensive notes: Athletic and bouncy with good footwork and ability to get to the baseball quickly and cleanly. Quick arm, compact and showed online throws with life. Tools to be a strong OF showed up in game with strong 1st step range. Best runner at the event. OF mph - 84

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