87.8
Exit Velocity (max)
4/19/25
CLASS OF 2029
OF
LHP
JJ
Herzog
NA (HS) • TX
5' 7" • 151.9LBS
L/L • 14yr 6mo
5' 7" • 151.9LBSL/L • 14yr 6mo
Commitment
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Best Of Stats
78.4
Exit Velocity (avg)
4/19/25
287
Distance (max)
4/19/25
50
Sweet Spot %
4/19/25
7.60
60-yd
4/19/25
4.27
30-yd
4/19/25
1.87
10-yd
4/19/25
18.4
Run speed (max)
4/19/25
71
INF Velo
4/19/25
75
OF Velo
4/19/25
-
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)
7.60
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
71.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield 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.
11.6
Hitting
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
87.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
78.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
287
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
199
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
23.9612
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.
2025 TX Rising Stars Games (Invite-Only)
Apr 19, 2025
Trackman - Hitting
87.8
Exit Velocity (max)
78.4
Exit Velocity (avg)
199
Distance (avg)
287
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
Pitching
Pitch Scores
Pitching Velos
Game Performance
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.87
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.26
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.6
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vizual Edge
Pitch Ai
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Contact
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Physical
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.
Positional Profile: OF/LHP LHH/OF/INF…solid bat/power combo in future. Solid defensive player, moves well on baseball field. Solid bat/power combo in future with adjustments, will take patience. Does have solid base to work from.
Body: 5-7, 152-pounds. Width to shoulders and back. Will have strength to body in future.
Hit: LHH. Upright stance, lands in good position to hit. Rotational back foot, lower 1/2 works fine in swing. Barrel/hands start in good position to hit. With start of swing, gets lead arm bar with separation at stride, dumps barrel around creating length to swing. Lead elbow flares up with swing. Work to soften elbow with stride, eliminating lead arm bar. Take direct path to zone with barrel. Lead arm/elbow can be up, don't let it flare up with swing. Adjustments will take time.
Power: 88 max exit velocity, averaged 78.4 mph. 287' max distance. Project solid bat/power combo in future with adjustments. Will take time to make adjustments, will be solid in time.
Arm: LH. INF-71 mph. OF-75 mph. OF…cutoff circle with length to backside, low slot. Would like to see development of full circle arc circle. Work to keep elbow up throwing and staying behind baseball with hand for carry to throws. 1B…arm works well with solid throws.
Defense: OF…Moves well to baseball, nice job of breaking down to field. feet. Hands set in good position, would like to see bit more out in front. 1B…Moves well to baseball, hands work fielding. Solid base to develop from, will solid infielder in future.
ATH: 7.60 runner in the 60. 1.87 and 4.26 in the 10 and 30 yard splits. Good start, good stride length. Upright runner with shoulders and head up for last 40 yards approx. Work to get lean forward with shoulders and head.