-
Hand Speed (max)
CLASS OF 2028
SS
RHP
Mason
Stehling
Ctd - Buena (HS) • AZ
5' 9" • 133.6LBS
R/R • 16yr 7mo
Travel Team: Buena Colts
5' 9" • 133.6LBSR/R • 16yr 7mo
Travel Team: Buena Colts
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
-
Bat Speed (max)
-
Rot. Acc (max)
10
Hard Hit %
8/07/26
91.2
Exit Velocity (max)
8/07/26
79.7
Exit Velocity (avg)
8/07/26
300
Distance (max)
8/07/26
70
Sweet Spot %
8/07/26
7.33
60-yd
8/07/26
4.10
30-yd
8/07/26
1.75
10-yd
1/11/26
19.0
Run speed (max)
8/07/26
81
INF Velo
8/07/26
-
OF Velo
-
C Velo
-
Pop Time
Fastball
81
Velocity (max)
8/07/26
76.3 - 79.4
Velo Range
8/07/26
1858
Spin Rate (avg)
1/11/26
Changeup
69.4 - 72.2
Velo Range
8/07/26
1663
Spin Rate (avg)
8/07/26
Curveball
67 - 69
Velo Range
8/07/26
1926
Spin Rate (avg)
1/11/26
Slider
62.9 - 64.1
Velo Range
1/11/26
1802
Spin Rate (avg)
1/11/26
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).
81.0
Hitting
2026
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
91.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
79.2
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
300
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
170
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
14.6599
Hard Hit %
Percentage of batted balls with exit velocities over 90 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.
Arizona State Games (Invite-Only)
Aug 7, 2026
Trackman - Hitting
91.2
Exit Velocity (max)
79.7
Exit Velocity (avg)
185
Distance (avg)
300
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Southern Arizona Preseason ID
Jan 11, 2026
Trackman - Hitting
87.4
Exit Velocity (max)
78.7
Exit Velocity (avg)
154
Distance (avg)
279
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
Pitching
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.7
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
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).
1855
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.
23.8
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).
67.0
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).
1851
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).
70.2
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).
1657
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).
63.5
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).
1802
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).
Arizona State Games (Invite-Only)
Aug 7, 2026
Trackman - Fastball
80.7
Velocity (max)
76.3 - 79.4
Velo Range
77.3
Eff Velocity (avg)
1,963
Spin Rate (max)
1,856
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
69.9
Velocity (max)
66.7 - 69.0
Velo Range
66.4
Eff Velocity (avg)
1,970
Spin Rate (max)
1,814
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
73.0
Velocity (max)
69.4 - 72.2
Velo Range
69.7
Eff Velocity (avg)
1,775
Spin Rate (max)
1,663
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Southern Arizona Preseason ID
Jan 11, 2026
Trackman - Fastball
79.1
Velocity (max)
78.5 - 79.1
Velo Range
76.8
Eff Velocity (avg)
1,946
Spin Rate (max)
1,858
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
66.0
Velocity (max)
64.0 - 65.8
Velo Range
62.1
Eff Velocity (avg)
2,048
Spin Rate (max)
1,926
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
64.1
Velocity (max)
62.9 - 64.1
Velo Range
60.2
Eff Velocity (avg)
1,886
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 - ChangeUp
69.9
Velocity (max)
66.9 - 69.7
Velo Range
66.0
Eff Velocity (avg)
1,744
Spin Rate (max)
1,641
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
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
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Pitching Velos
2026
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)
78.2
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.5
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
Game Performance
2026
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.83
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.09
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.33
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.
Arizona State Games (Invite-Only)
Aug 7, 2026
Vald
1.83
10-yd
4.10
30-yd
7.33
60-yd
19.0
Run speed (max)
1.52
RSI (max)
23.0
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.
83.96
Pitch Ai
Notes
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.
Positional Profile: SS/RHP
Body: 5-8, 131-pounds.
Delivery: Hands come set at the belt line and break with the leg, creating a quick and athletic delivery. Moves down the mound with intent and does a good job staying on line to the target while working downhill consistently.
Arm Action: RH. Works from a 3/4 arm slot with a loose, whippy arm action. Shows good arm speed and healthy deceleration, allowing the arm to work freely through release.
FB: T79, 79-79 mph. Shows a flatter look through the zone with some life when located. Plays best when he stays down the mound and lets the arm speed work, giving it a chance to get on hitters quickly. T1946, 1858 average rpm.
CB: 64-66 mph. Shows moderate depth with a smoother breaking action. Can be used to change speeds and eye levels, though consistency will be important for it to play more often. T2048, 1926 average rpm.
SL: 63-64 mph. Shows more lateral movement and can be landed in the zone. Gives him a distinct breaking look from the curveball and can create awkward swings when thrown with intent. T1886, 1802 average rpm.
CH: 67-70 mph. Shows separation off the fastball with arm side action. Works well when kept down and adds another usable option to keep hitters from sitting on the fastball. T1744, 1641 average rpm.
ATH: 7.80 runner in the 60. 1.75 and 4.23 in the 10 and 30 yard splits.
Positional Profile: SS/RHP
Body: 5-8, 131-pounds.
Hit: RHH. Narrow stance with a tall posture and open setup. Hands are held even with the shoulder, giving him a simple look in the box. Uses a slow, controlled leg lift into the stride and finishes square to slightly open. Swing shows a flatter path that works around the ball, leading to a pull side approach. Lower half involvement is limited, and adding more engagement could help the swing play more consistently.
Power: 87 max exit velocity, averaged 78.7 mph. 279' max distance.
Arm: RH. INF-73 mph. Long arm action with modest arm strength. Throws show limited carry but he is able to stay on line and make the routine play with consistency.
Defense: Reliable defender with steady glove work and controlled footwork. Moves well enough laterally and shows some athleticism in his actions, giving him a dependable defensive foundation to build on as he continues to develop.
ATH: 7.80 runner in the 60. 1.75 and 4.23 in the 10 and 30 yard splits.
Vizual Edge: 68.65 Edge Score