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Coach: Jeremy Sterling
Phone: (619) 838-6653
Email: jeremy.sterling@ymail.com
Website: www.powersurgewalling.com

Stella Koo #99

Positions: P OF

Bats: R Throws: R

Height:
Weight: 		Grad Year: 2031

Analytics

Analytics

Analytics shown here are certified by The Line Training

Hitting

Bat SpeedAvg.
58.0 MPH		Best
59.0 MPH
Exit VelocityAvg.
52.4 MPH		Best
62.5 MPH
Launch Angle 7.7 Deg.  

Agility

Vertical Jump 15 IN  
Broad Jump 64 IN  

Strength

Overhand Throw 46.1 MPH  
Grip Strength 48.8 / 50.8 (left / right)

Pitching

PitchVelocity
Best/Avg		Horiz. Break
Best/Avg		Vert. Break
Best/Avg		Spin Rate
Best/Avg		Spin Eff.
Best/Avg
Fastball52.3 / 51.82.7 / -2.00.5 / 0.11168 / 112433 / 33
Changeup36.8 / 36.4-5.1 / -5.55.0 / 4.51016 / 95183 / 83
Curveball51.7 / 47.4-1.9 / -3.75.0 / -1.61013 / 94299 / 99
Dropball51.4 / 51.1-2.4 / -3.31.0 / -0.11165 / 105539 / 39
Screwball51.8 / 51.4-3.1 / -4.00.4 / 0.21121 / 105544 / 44

Velocity

PitchBest/Avg
Velo
Fastball 52.3 / 51.8
Changeup 36.8 / 36.4
Curveball 51.7 / 47.4
Dropball 51.4 / 51.1
Screwball 51.8 / 51.4

Horiz. Break

PitchBest/Avg
Hor. Break
Fastball 2.7 / -2.0
Changeup -5.1 / -5.5
Curveball -1.9 / -3.7
Dropball -2.4 / -3.3
Screwball -3.1 / -4.0

Vert. Break

PitchBest/Avg
Ver. Break
Fastball 0.5 / 0.1
Changeup 5.0 / 4.5
Curveball 5.0 / -1.6
Dropball 1.0 / -0.1
Screwball 0.4 / 0.2

Spin Rate

PitchBest/Avg
Spin Rate
Fastball 1168 / 1124
Changeup 1016 / 951
Curveball 1013 / 942
Dropball 1165 / 1055
Screwball 1121 / 1055

Spin Efficiency

PitchBest/Avg
Spin Eff.
Fastball 33 / 33
Changeup 83 / 83
Curveball 99 / 99
Dropball 39 / 39
Screwball 44 / 44

High School Information

Graduation Year: 2031