@Jack_klump 82
Velocity (max)
2/16/26
CLASS OF 2028
RHP
SS
Jack
Klump
Jefferson (Festus) (HS) • MO
5' 11" • 149.7LBS
R/R • 16yr 5mo
Travel Team: Festus 253 Legion
5' 11" • 149.7LBSR/R • 16yr 5mo
Travel Team: Festus 253 Legion
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
80 - 82
Velo Range
2/16/26
2019
Spin Rate (avg)
2/16/26
Changeup
76 - 77
Velo Range
2/16/26
2022
Spin Rate (avg)
2/16/26
Curveball
61 - 65
Velo Range
6/23/25
-
Spin Rate (avg)
Slider
64.5 - 67.1
Velo Range
2/16/26
1998
Spin Rate (avg)
2/16/26
81
Exit Velocity (max)
6/23/25
64.3
Exit Velocity (avg)
6/23/25
244
Distance (max)
6/23/25
33
Sweet Spot %
6/23/25
7.57
60-yd
6/23/25
-
30-yd
-
10-yd
-
Run speed (max)
75
INF Velo
6/23/25
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2025
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.57
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
75.0
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.
10.7
Hitting
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
81.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
64.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
244
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
175
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
39.2358
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
American Legion Scout Day (St. Louis)
Jun 23, 2025
Trackman - Hitting
81.0
Exit Velocity (max)
64.3
Exit Velocity (avg)
175
Distance (avg)
244
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Hitting
Pitching
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
81.0
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).
2019
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.
24.9
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).
76.3
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).
2022
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).
65.8
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).
1998
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).
St. Louis Preseason ID
Feb 16, 2026
Trackman - Fastball
81.8
Velocity (max)
80.3 - 81.8
Velo Range
77.9
Eff Velocity (avg)
2,113
Spin Rate (max)
2,019
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
67.3
Velocity (max)
64.5 - 67.1
Velo Range
63.0
Eff Velocity (avg)
2,144
Spin Rate (max)
1,998
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
76.8
Velocity (max)
75.6 - 76.8
Velo Range
74.3
Eff Velocity (avg)
2,094
Spin Rate (max)
2,022
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
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)
81.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
63.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.0
Game Performance
Vizual Edge
Pitch Ai
Notes
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Draft Reports
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Physical
2026
2025
Grip Strgth (LH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (RH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (LH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (RH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.