@jdub_brown 21.4
Hand Speed (max)
1/11/26
CLASS OF 2027
1B
RHP
Jon Walker
Brown
Lassiter (HS) • GA
6' 2" • 207.5LBS
L/R • 17yr 6mo
Travel Team: 643 DP 17u Jags
6' 2" • 207.5LBSL/R • 17yr 6mo
Travel Team: 643 DP 17u Jags
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
71.8
Bat Speed (max)
1/11/26
19.4
Rot. Acc (max)
1/11/26
78
Hard Hit %
6/09/26
102
Exit Velocity (max)
6/09/26
93.7
Exit Velocity (avg)
6/09/26
394
Distance (max)
6/09/26
60
Sweet Spot %
1/11/26
7.28
60-yd
6/09/26
4.02
30-yd
6/09/26
1.72
10-yd
6/09/26
18.8
Run speed (max)
6/09/26
83
INF Velo
1/11/26
-
OF Velo
-
C Velo
-
Pop Time
Fastball
89
Velocity (max)
5/22/26
86 - 89
Velo Range
5/29/26
2101
Spin Rate (avg)
6/09/26
Changeup
81 - 81
Velo Range
4/09/26
-
Spin Rate (avg)
Curveball
69 - 73
Velo Range
4/09/26
-
Spin Rate (avg)
Slider
73 - 75.9
Velo Range
6/09/26
2321
Spin Rate (avg)
6/09/26
Positional Tools
2026
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Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
83.0
Hitting
2026
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
102.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
92.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
394
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
270
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
26.909
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 9, 2026
Trackman - Hitting
102.0
Exit Velocity (max)
93.7
Exit Velocity (avg)
260
Distance (avg)
394
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Preseason All-State: Upperclass (Invite-Only)
Jan 11, 2026
Trackman - Hitting
99.0
Exit Velocity (max)
91.4
Exit Velocity (avg)
279
Distance (avg)
386
Distance (max)
Hard Hit %
Barrel %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2026
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.4
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.6
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
71.8
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
70.0
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.
Preseason All-State: Upperclass (Invite-Only)
Jan 11, 2026
Blast - Hitting
21.4
Hand Speed (max)
20.6
Hand Speed (avg)
71.8
Bat Speed (max)
70.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
88.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
86.5
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).
2101
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.
24.3
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
74.5
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).
2321
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).
Top Prospect Games: Upperclass (Invite-Only)
Jun 9, 2026
Trackman - Fastball
88.8
Velocity (max)
85.3 - 87.6
Velo Range
86.5
Eff Velocity (avg)
2,449
Spin Rate (max)
2,101
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
76.3
Velocity (max)
73.0 - 75.9
Velo Range
73.6
Eff Velocity (avg)
2,589
Spin Rate (max)
2,321
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
2026
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
2026
2024
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
89.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
86.3
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.0
Changeup
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
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)
79.2
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
69.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
58.5
Game Performance
2026
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.72
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.02
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.28
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 9, 2026
Vald
1.72
10-yd
4.02
30-yd
7.28
60-yd
18.8
Run speed (max)
1.87
RSI (max)
22.4
Jump Height (max)
Vizual Edge
2026
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.
80.59
Pitch Ai
Notes
News
- Prep Baseball Showdown: Scout Blog - Jun 1, 2026
- Prep Baseball Georgia Scout Blog: Week 9 - Apr 13, 2026
- 2027 Uncommitted Check-In: Infielders - Mar 19, 2026
- Preseason All-State Upperclass: Quick Hits, Infielders - Jan 16, 2026
- Georgia Class of 2027 Rankings: Top Uncommitted - Dec 18, 2025
- Georgia Class of 2027 Rankings: Risers and New Additions - Dec 17, 2025
- Upperclass Fall World Series: Scout Blog - Oct 1, 2025
Comments
Draft Reports
Contact
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Physical
2026
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.
Jon Walker Brown, Lassiter (GA), 2027
Positional Profile: 1B/RHP
Body: 6-2, 211-pounds.
Hit: LHH. Open stance, hands tight by ears, bat coiled towards 2B. Cross step toe tap. Quick hands, drop on ball well. Violent hacks each time. 70 mph bat speed with 17 G's of rotational acceleration.
Power: 99 max exit velocity, averaged 91.4 mph. 386' max distance.
Arm: RH. INF-83 mph. Upper 3/4 - over the top arm slot. Strong throws.
Defense: Good mover, solid feet below him.
ATH: 1.80 and 4.22 in the 10 and 30 yard splits.
Vizual Edge: 63.62 Edge Score