@Jdizzlehertzog 
20.3
Hand Speed (max)
2/18/24
CLASS OF 2025
C
2B
John David (JD)
Hertzog
ASU Mountain Home
Stuttgart (HS) • AR
5' 8" • 156LBS
R/R • 18yr 6mo
Stuttgart (HS) • AR
5' 8" • 156LBSR/R • 18yr 6mo
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
71
Bat Speed (max)
2/18/24
11.7
Rot. Acc (max)
6/12/24
-
Hard Hit %
89.2
Exit Velocity (max)
6/12/24
81.6
Exit Velocity (avg)
6/12/24
335
Distance (max)
6/12/24
58
Sweet Spot %
6/12/24
7.87
60-yd
2/18/24
4.24
30-yd
2/18/24
1.85
10-yd
6/12/24
17.1
Run speed (max)
2/18/24
-
INF Velo
-
OF Velo
76
C Velo
6/12/24
1.93 - 2.02
Pop Time
6/12/24
Positional Tools
2024
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Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
1.93 - 2.15
Catcher Velocity
The athlete's maximum throwing velocity from the catcher position in the given event year. Measured in miles per hour (MPH).
76.0
Hitting
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
89.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
79.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
335
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
204
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
21.9
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.
Top Prospect Games: Upperclass (Invite-Only)
Jun 12, 2024
Trackman - Hitting
89.2
Exit Velocity (max)
81.6
Exit Velocity (avg)
231
Distance (avg)
335
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Preseason All-State (Invite-Only)
Feb 18, 2024
Trackman - Hitting
84.3
Exit Velocity (max)
78.0
Exit Velocity (avg)
174
Distance (avg)
301
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
20.3
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
71.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
64.5
Rotational Acceleration Max
The highest Rotational Acceleration of any swing in the given event year.
Rotational Acceleration Avg
The average Rotational Acceleration for all swings in the given event year.
On-Plane Efficiency Max
The highest On-Plane Efficiency of any swing in the given event year.
On-Plane Efficiency Avg
The average On-Plane Efficiency for all swings in the given event year.
Top Prospect Games: Upperclass (Invite-Only)
Jun 12, 2024
Blast - Hitting
18.6
Hand Speed (max)
17.8
Hand Speed (avg)
66.9
Bat Speed (max)
64.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Preseason All-State (Invite-Only)
Feb 18, 2024
Blast - Hitting
20.3
Hand Speed (max)
17.9
Hand Speed (avg)
71.0
Bat Speed (max)
64.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
Pitch Scores
Pitching Velos
Game Performance
2024
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.85
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.24
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.87
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
RSi
The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Top Prospect Games: Upperclass (Invite-Only)
Jun 12, 2024
Swift
1.85
10-yd
4.29
30-yd
7.97
60-yd
17.0
Run speed (max)
1.43
RSI (max)
27.4
Jump Height (max)
Vizual Edge
2024
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
73.94
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
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Physical
2024
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.
Positional Profile: C/2B
Body: 5-8, 156-pounds. Lean frame with room for added strength.
Hit: RHH. Balanced setup with quiet hands, uses toe tap for timing. Short uphill path through the zone, mostly barrels, potential to leave the yard. 64.6 mph bat speed with 9 G's of rotational acceleration.
Power: 89 max exit velocity, averaged 81.6 mph. 335' max distance.
Arm: RH. C-76 mph. Short arm stroke from an over the top slot.
Defense: 1.93-2.02 pop times. Polished athletic actions defensively.
ATH: 7.97 runner in the 60. 1.85 and 4.29 in the 10 and 30 yard splits. 27.40 max vertical.