@karstonc28 77.5
Velocity (max)
5/27/25
CLASS OF 2027
RHP
OF
Karston
Coffey
Vandegrift (HS) • TX
5' 9" • 175LBS
R/R • 17yr 3mo
Travel Team: Texas Twelve CapCity
5' 9" • 175LBS
R/R • 17yr 3mo
Travel Team: Texas Twelve CapCity
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
75.7 - 77
Velo Range
5/27/25
1872
Spin Rate (avg)
5/27/25
Changeup
71.2 - 71.8
Velo Range
5/27/25
1447
Spin Rate (avg)
5/27/25
Slider
68 - 69.3
Velo Range
5/27/25
1740
Spin Rate (avg)
5/27/25
7.30
60-yd
5/27/25
-
30-yd
-
10-yd
-
Run speed (max)
Positional Tools
Hitting
Hitting
Pitching
2025
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.5
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.3
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).
1872
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.
24.5
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
71.5
Changeup
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).
1447
Changeup
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).
68.6
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).
1740
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).
2025 GPS Scout Day
May 27, 2025
Trackman - Fastball
77.5
Velocity (max)
75.7 - 77.0
Velo Range
75.0
Eff Velocity (avg)
1,922
Spin Rate (max)
1,872
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
69.5
Velocity (max)
68.0 - 69.3
Velo Range
67.8
Eff Velocity (avg)
1,769
Spin Rate (max)
1,740
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
72.0
Velocity (max)
71.2 - 71.8
Velo Range
70.9
Eff Velocity (avg)
1,497
Spin Rate (max)
1,447
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
2025
Fastball
Hop+
A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
Fastball
Rise+
A fastball with rise has a high percentage of backspin. When thrown up in the zone, it is more likely to generate a higher fly ball percentage. Rise+ of 100 is MLB average
Slider
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Slider
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Pitching Velos
Game Performance
2025
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.3
Vizual Edge
Pitch Ai
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