74
Velocity (max)
6/10/25
CLASS OF 2028
LHP
1B
Mason
Stueber
Chesterton Senior (HS) • IN
6' 1" • 170LBS
L/L • 16yr
Travel Team: Indiana Bulls North
6' 1" • 170LBS
L/L • 16yr
Travel Team: Indiana Bulls North
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
72 - 74
Velo Range
6/10/25
1802
Spin Rate (avg)
6/10/25
Changeup
67 - 68
Velo Range
6/10/25
1532
Spin Rate (avg)
6/10/25
Curveball
63 - 64
Velo Range
6/10/25
1815
Spin Rate (avg)
6/10/25
Slider
66.5 - 67.5
Velo Range
6/10/25
1913
Spin Rate (avg)
6/10/25
86.5
Exit Velocity (max)
6/10/25
83.1
Exit Velocity (avg)
6/10/25
292
Distance (max)
6/10/25
33
Sweet Spot %
6/10/25
8.30
60-yd
6/10/25
4.49
30-yd
6/10/25
1.84
10-yd
6/10/25
16.1
Run speed (max)
6/10/25
73
INF Velo
6/10/25
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2025
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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).
73.0
Hitting
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
86.5
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
83.1
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
292
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
137
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
8.2146
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.
Indiana Bulls Scout Day
Jun 10, 2025
Trackman - Hitting
86.5
Exit Velocity (max)
83.1
Exit Velocity (avg)
137
Distance (avg)
292
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
Pitching
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
73.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
72.6
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).
1802
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.
24.8
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).
63.1
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).
1815
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).
67.4
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).
1532
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).
67.0
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).
1913
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).
Indiana Bulls Scout Day
Jun 10, 2025
Trackman - Fastball
73.8
Velocity (max)
71.6 - 73.7
Velo Range
72.5
Eff Velocity (avg)
1,847
Spin Rate (max)
1,802
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
63.6
Velocity (max)
62.7 - 63.6
Velo Range
62.2
Eff Velocity (avg)
1,866
Spin Rate (max)
1,815
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
67.5
Velocity (max)
66.5 - 67.5
Velo Range
66.2
Eff Velocity (avg)
1,935
Spin Rate (max)
1,913
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
67.8
Velocity (max)
67.0 - 67.8
Velo Range
67.4
Eff Velocity (avg)
1,571
Spin Rate (max)
1,532
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
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
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
74.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
63.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.5
Game Performance
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.84
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.49
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.3
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vizual Edge
Pitch Ai
Notes
News
Comments
6/10/25
Lean, projectable 6-foot-1, 165-pound frame with plenty of room for added strength. On the mound, the left-hander works 72–74, T74 with his fastball (1802 avg rpm), showing easy arm action and strike-throwing ability. Spins two breaking balls – a curveball at 63–64 (1815 avg rpm) and a slider at 66–67 (1913 avg rpm) – both developing with flashes of shape, while the changeup (67–68, 1532 avg rpm) offers separation with some feel. Delivery is clean and should allow for future jumps in velocity. At the plate, left-handed hitter with a strong, connected swing that produces firm contact (87 mph max EV / 292’ peak, 83.1 avg). Gap-to-gap approach now with emerging power as the frame fills out. Defensively, arm works at 73 mph across the diamond, projecting best at 1B. Athletically, an 8.30 runner with limited footspeed, but bat and left-handed arm give him follow value.
Draft Reports
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