@Billyd174239 81.5
Velocity (max)
9/28/25
CLASS OF 2028
RHP
1B
Billy
Dillemuth
St Marys High School (HS) • NY
6' 2" • 225LBS
R/R • 16yr 6mo
6' 2" • 225LBS
R/R • 16yr 6mo
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
78.6 - 80.5
Velo Range
9/28/25
1857
Spin Rate (avg)
8/23/24
Changeup
70.9 - 73.1
Velo Range
9/28/25
1606
Spin Rate (avg)
9/28/25
Curveball
64 - 68
Velo Range
9/28/25
2056
Spin Rate (avg)
8/23/24
91.3
Exit Velocity (max)
9/28/25
81.8
Exit Velocity (avg)
9/28/25
318
Distance (max)
9/28/25
67
Sweet Spot %
8/23/24
19.9
Hand Speed (max)
8/23/24
74.2
Bat Speed (max)
9/28/25
10.8
Rot. Acc (max)
8/23/24
7
Hard Hit %
9/28/25
8.05
60-yd
9/28/25
4.31
30-yd
9/28/25
1.77
10-yd
9/28/25
16.4
Run speed (max)
9/28/25
82
INF Velo
8/23/24
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2025
2024
2023
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.05
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.
11.3
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.47
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
82.0
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.
10.3
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
Hitting
2025
2024
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
91.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
81.8
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
318
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
227
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
24.4018
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).
87.5
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
75.7
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
305
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
211
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
28.6227
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).
80.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
73.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
269
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.
29.3044
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 New York Fall Top Prospect Games
Sep 28, 2025
Trackman - Hitting
91.3
Exit Velocity (max)
81.8
Exit Velocity (avg)
227
Distance (avg)
318
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2024 Thunderwolves Scout Day (Summer)
Aug 23, 2024
Trackman - Hitting
87.5
Exit Velocity (max)
75.7
Exit Velocity (avg)
211
Distance (avg)
305
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Thunderwolves Scout Day (Summer)
Aug 11, 2023
Trackman - Hitting
80.7
Exit Velocity (max)
73.9
Exit Velocity (avg)
204
Distance (avg)
269
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
2024
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
19.5
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
18.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
74.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
68.9
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
19.9
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
18.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
71.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
65.2
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
18.3
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.5
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
63.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
61.8
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.
2025 New York Fall Top Prospect Games
Sep 28, 2025
Blast - Hitting
19.5
Hand Speed (max)
18.2
Hand Speed (avg)
74.2
Bat Speed (max)
68.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 Thunderwolves Scout Day (Summer)
Aug 23, 2024
Blast - Hitting
19.9
Hand Speed (max)
18.2
Hand Speed (avg)
71.1
Bat Speed (max)
65.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Thunderwolves Scout Day (Summer)
Aug 11, 2023
Blast - Hitting
18.3
Hand Speed (max)
17.5
Hand Speed (avg)
63.4
Bat Speed (max)
61.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.5
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
79.5
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).
1796
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.
22.6
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).
65.6
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).
1998
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).
72.0
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).
1606
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.3
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).
1857
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.
23.7
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).
63.2
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).
2056
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
74.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
74.1
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).
1561
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.
21.0
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
51.1
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).
1697
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
58.6
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).
1192
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 New York Fall Top Prospect Games
Sep 28, 2025
Trackman - Fastball
81.5
Velocity (max)
78.6 - 80.5
Velo Range
77.6
Eff Velocity (avg)
2,161
Spin Rate (max)
1,796
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
67.5
Velocity (max)
63.7 - 67.5
Velo Range
63.5
Eff Velocity (avg)
2,008
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
73.1
Velocity (max)
70.9 - 73.1
Velo Range
71.0
Eff Velocity (avg)
1,725
Spin Rate (max)
1,606
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2024 Thunderwolves Scout Day (Summer)
Aug 23, 2024
Trackman - Fastball
80.9
Velocity (max)
76.9 - 79.6
Velo Range
74.6
Eff Velocity (avg)
2,028
Spin Rate (max)
1,857
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
64.3
Velocity (max)
62.2 - 64.2
Velo Range
59.3
Eff Velocity (avg)
2,161
Spin Rate (max)
2,056
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2023 Thunderwolves Scout Day (Summer)
Aug 11, 2023
Trackman - Fastball
74.6
Velocity (max)
73.3 - 74.6
Velo Range
72.6
Eff Velocity (avg)
1,786
Spin Rate (max)
1,561
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Curveball
51.4
Velocity (max)
50.9 - 51.4
Velo Range
1,762
Spin Rate (max)
1,697
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
59.8
Velocity (max)
57.3 - 59.8
Velo Range
54.9
Eff Velocity (avg)
1,436
Spin Rate (max)
1,192
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
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
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
78.5
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
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
75.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
51.0
Changeup
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
2024
2023
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.47
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.54
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.77
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.31
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.05
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.
2025 New York Fall Top Prospect Games
Sep 28, 2025
Vald
1.77
10-yd
4.31
30-yd
8.05
60-yd
16.4
Run speed (max)
0.68
RSI (max)
15.2
Jump Height (max)
Vizual Edge
2025
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.
51.49
Pitch Ai
Notes
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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.