@williammahl12 86.1
Exit Velocity (max)
6/19/25
CLASS OF 2026
1B
LHP
William
Mahl
Hilton Head Christian (HS) • SC
6' 1" • 165LBS
R/L • 18yr 4mo
Travel Team: Diamond Devils 17U
6' 1" • 165LBS
R/L • 18yr 4mo
Travel Team: Diamond Devils 17U
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
78.9
Exit Velocity (avg)
6/19/25
222
Distance (max)
6/19/25
43
Sweet Spot %
6/19/25
7.06
60-yd
6/19/25
-
30-yd
-
10-yd
-
Run speed (max)
71
INF Velo
6/19/25
79
OF Velo
6/19/25
-
C Velo
-
Pop Time
Fastball
80
Velocity (max)
6/19/25
77.1 - 79.2
Velo Range
6/19/25
2105
Spin Rate (avg)
6/19/25
Changeup
68.5 - 70.2
Velo Range
6/19/25
1638
Spin Rate (avg)
5/18/24
Curveball
59 - 60.3
Velo Range
5/18/24
2071
Spin Rate (avg)
5/18/24
Slider
66.2 - 69.3
Velo Range
6/19/25
1981
Spin Rate (avg)
6/19/25
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)
7.06
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).
79.0
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.
12.2
Hitting
2025
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
86.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
78.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
222
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
120
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
9.8797
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.
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
78.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
71.6
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
90
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
69
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
4.4413
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 Prep Baseball Scout Day: Diamond Devils
Jun 19, 2025
Trackman - Hitting
86.1
Exit Velocity (max)
78.9
Exit Velocity (avg)
120
Distance (avg)
222
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Prep Baseball Scout Day: Diamond Devils
May 18, 2024
Trackman - Hitting
78.1
Exit Velocity (max)
71.6
Exit Velocity (avg)
69
Distance (avg)
90
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
Hitting
Pitching
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
79.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.1
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).
2105
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.
27.0
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).
69.4
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).
1415
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).
68.1
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).
1981
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
72.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
72.5
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).
1905
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.
26.3
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
59.7
Curveball
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).
2071
Curveball
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).
67.1
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).
1638
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).
2025 Prep Baseball Scout Day: Diamond Devils
Jun 19, 2025
Trackman - Fastball
79.6
Velocity (max)
77.1 - 79.2
Velo Range
77.1
Eff Velocity (avg)
2,159
Spin Rate (max)
2,105
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
69.3
Velocity (max)
66.2 - 69.3
Velo Range
66.8
Eff Velocity (avg)
2,051
Spin Rate (max)
1,981
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
70.2
Velocity (max)
68.5 - 70.2
Velo Range
69.2
Eff Velocity (avg)
1,480
Spin Rate (max)
1,415
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Prep Baseball Scout Day: Diamond Devils
May 18, 2024
Trackman - Fastball
72.8
Velocity (max)
72.1 - 72.8
Velo Range
71.2
Eff Velocity (avg)
1,937
Spin Rate (max)
1,905
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
60.3
Velocity (max)
59.0 - 60.3
Velo Range
58.9
Eff Velocity (avg)
2,085
Spin Rate (max)
2,071
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
67.9
Velocity (max)
66.2 - 67.9
Velo Range
65.2
Eff Velocity (avg)
1,715
Spin Rate (max)
1,638
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
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
Pitching Velos
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
78.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
73.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
59.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.0
Game Performance
Vizual Edge
Pitch Ai
Notes
News
- 2025 Prep Baseball Scout Day: Diamond Devils UpperClass: Trackman Hitting Leaders - Jun 27, 2025
- 2025 Prep Baseball Scout Day: Diamond Devils UpperClass: Data Dive - Jun 26, 2025
- Trackman Hitting Leaders: Diamond Devils Scout Day 2026 Grad Class - Jun 3, 2024
- Trackman Pitching Leaders: Diamond Devils Scout Day 2026 Grad Classes - May 28, 2024
- Diamond Devils Scout Day: Statistical Leaders - May 24, 2024
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