20.6
Hand Speed (max)
2/02/25
CLASS OF 2028
1B
LHP
Pierson
Stefani
Arapahoe (HS) • CO
6' 2" • 216LBS
L/L • 15yr 9mo
Travel Team: Colorado Yard Dawgs - Bates
6' 2" • 216LBSL/L • 15yr 9mo
Travel Team: Colorado Yard Dawgs - Bates
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
70.7
Bat Speed (max)
2/15/26
15.8
Rot. Acc (max)
2/02/25
13
Hard Hit %
2/15/26
92.1
Exit Velocity (max)
2/02/25
85
Exit Velocity (avg)
2/15/26
352
Distance (max)
2/15/26
38
Sweet Spot %
2/15/26
8.09
60-yd
2/15/26
4.40
30-yd
2/15/26
1.90
10-yd
2/15/26
16.6
Run speed (max)
2/15/26
78
INF Velo
2/15/26
-
OF Velo
-
C Velo
-
Pop Time
Fastball
83.2
Velocity (max)
2/15/26
82 - 83
Velo Range
2/15/26
2202
Spin Rate (avg)
2/15/26
Changeup
72 - 73
Velo Range
2/15/26
1289
Spin Rate (avg)
2/02/25
Curveball
67.3 - 69.3
Velo Range
2/15/26
1951
Spin Rate (avg)
2/15/26
Slider
68 - 69
Velo Range
2/15/26
1854
Spin Rate (avg)
2/15/26
Positional Tools
2026
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.09
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
78.0
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.
11.3
Hitting
2026
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
91.5
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
85.0
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
352
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
157
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
10.7069
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).
92.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
80.5
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).
154
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
15.1929
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.
Denver Preseason ID
Feb 15, 2026
Trackman - Hitting
91.5
Exit Velocity (max)
85.0
Exit Velocity (avg)
157
Distance (avg)
352
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Denver Preseason ID
Feb 2, 2025
Trackman - Hitting
92.1
Exit Velocity (max)
80.5
Exit Velocity (avg)
154
Distance (avg)
305
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2026
2025
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.
17.6
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
70.7
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
68.1
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.
20.6
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.1
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
69.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.9
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.
Denver Preseason ID
Feb 15, 2026
Blast - Hitting
19.5
Hand Speed (max)
17.6
Hand Speed (avg)
70.7
Bat Speed (max)
68.1
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Denver Preseason ID
Feb 2, 2025
Blast - Hitting
20.6
Hand Speed (max)
19.1
Hand Speed (avg)
69.1
Bat Speed (max)
66.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2026
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.2
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
82.5
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).
2202
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.
26.7
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).
68.3
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).
1951
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).
72.3
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).
955
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.4
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).
1854
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).
77.3
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.2
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).
2021
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.
26.6
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
66.3
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).
1289
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).
65.1
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).
1681
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).
Denver Preseason ID
Feb 15, 2026
Trackman - Fastball
83.2
Velocity (max)
82.1 - 83.0
Velo Range
81.8
Eff Velocity (avg)
2,302
Spin Rate (max)
2,202
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
69.3
Velocity (max)
67.3 - 69.3
Velo Range
66.7
Eff Velocity (avg)
2,030
Spin Rate (max)
1,951
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
68.7
Velocity (max)
68.0 - 68.7
Velo Range
67.1
Eff Velocity (avg)
1,892
Spin Rate (max)
1,854
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
72.7
Velocity (max)
71.8 - 72.7
Velo Range
1,107
Spin Rate (max)
955
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Denver Preseason ID
Feb 2, 2025
Trackman - Fastball
77.3
Velocity (max)
75.3 - 77.0
Velo Range
75.7
Eff Velocity (avg)
2,194
Spin Rate (max)
2,021
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
66.9
Velocity (max)
63.6 - 66.6
Velo Range
63.6
Eff Velocity (avg)
1,818
Spin Rate (max)
1,681
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
67.7
Velocity (max)
65.4 - 67.3
Velo Range
65.7
Eff Velocity (avg)
1,520
Spin Rate (max)
1,289
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
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
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
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
82.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.5
Game Performance
2026
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.9
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.4
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.09
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
2.0
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.69
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.
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.
71.62
Pitch Ai
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Physical
2026
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.
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: 1B/LHP
Body: 5-9, 192-pounds. Sturdy build.
Delivery: Drop and drive delivery with a deliberate tempo. Uses a moderate leg lift before striding straight down the mound into a balanced landing, sometimes falling off after landing.
Arm Action: LH. Long loose arm action from a 3/4 slot.
FB: T77, 75-77 mph. Mostly strikes, moderate spin, arm side run. T2194, 2021 average rpm.
SL: 64-67 mph. Some strikes, rolling left to right break. T1818, 1681 average rpm.
CH: 65-67 mph. Some strikes, some gradual sink. T1520, 1289 average rpm.
ATH: 2.00 and 4.69 in the 10 and 30 yard splits.
Positional Profile: 1B/LHP
Body: 5-9, 192-pounds. Sturdy build.
Hit: LHH. Upright balanced setup with front foot open, weight starts on back side, movement throughout. Uses a short leg lift trigger. Long flat path through the zone, some barrels, power present with high exit velocity. 66.9 mph bat speed with 11 G's of rotational acceleration.
Power: 92 max exit velocity, averaged 80.5 mph. 305' max distance.
Arm: LH.
Defense: Moderate stroke from a 3/4 slot. pop times. Confident movements defensively.
ATH: 2.00 and 4.69 in the 10 and 30 yard splits.
Vizual Edge: 71.62 Edge Score