@koo758042 82.4
Velocity (max)
3/21/26
CLASS OF 2028
LHP
OF
Ethan
Koo
Whitnall (HS) • WI
5' 8" • 145.7LBS
L/L • 15yr 6mo
Travel Team: Midwest Halos
5' 8" • 145.7LBSL/L • 15yr 6mo
Travel Team: Midwest Halos
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
77 - 81.2
Velo Range
3/21/26
2272
Spin Rate (avg)
3/21/26
Curveball
63.7 - 66.5
Velo Range
3/21/26
1906
Spin Rate (avg)
3/22/25
Slider
61.8 - 68.4
Velo Range
3/21/26
2081
Spin Rate (avg)
3/21/26
Positional Tools
Hitting
Hitting
Pitching
2026
2025
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
79.1
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2272
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
28.7
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
65.1
Curveball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1862
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
65.1
Slider
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2081
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
75.5
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
74.2
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2082
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
28.1
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
57.5
Curveball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1906
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
57.0
Slider
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1851
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Milwaukee Preseason ID
Mar 21, 2026
Trackman - Fastball
82.4
Velocity (max)
77.0 - 81.2
Velo Range
78.7
Eff Velocity (avg)
2,433
Spin Rate (max)
2,272
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
66.5
Velocity (max)
63.7 - 66.5
Velo Range
63.4
Eff Velocity (avg)
2,012
Spin Rate (max)
1,862
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
70.1
Velocity (max)
61.8 - 68.4
Velo Range
63.5
Eff Velocity (avg)
2,202
Spin Rate (max)
2,081
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Milwaukee Preseason ID
Mar 22, 2025
Trackman - Fastball
75.5
Velocity (max)
73.3 - 75.1
Velo Range
72.3
Eff Velocity (avg)
2,143
Spin Rate (max)
2,082
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
59.3
Velocity (max)
56.3 - 58.6
Velo Range
55.4
Eff Velocity (avg)
1,968
Spin Rate (max)
1,906
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
58.4
Velocity (max)
56.2 - 57.7
Velo Range
54.4
Eff Velocity (avg)
1,948
Spin Rate (max)
1,851
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
Pitching Velos
2026
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
75.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
57.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
57.0
Game Performance
2026
2025
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vizual Edge
Pitch Ai
Notes
Comments
Draft Reports
Contact
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Positional Profile: LHP/OF
Body: 5-7, 130-pounds. Small, light and athletic build.
Delivery: High leg tuck, explodes off back side, lands in-line, balanced.
Arm Action: LH. Full circle, quick arm, high 3/4 slot.
FB: T75, 73-75 mph. Has life. T2143, 2082 average rpm.
CB: 56-59 mph. Strong vertical movement, 11/5 break. T1968, 1906 average rpm.
SL: 56-58 mph. Possesses some sweep. T1948, 1851 average rpm.
ATH: 21.30 max vertical.