@masonkelley23 
23
Hand Speed (max)
10/18/20
CLASS OF 2022
3B
RHP
Mason
Kelley
Sumner (HS) • WA
6' 2" • 190LBS
R/R • 21yr 5mo
Travel Team: Spokane Crew
Rankings
2022 National
Rankings available to Premium Subscriber
2022 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
74.5
Bat Speed (max)
3/11/21
14.1
Rot. Acc (max)
10/18/20
-
Hard Hit %
97
Exit Velocity (max)
3/11/21
-
Exit Velocity (avg)
-
Distance (max)
-
Sweet Spot %
7.91
60-yd
10/18/20
-
30-yd
-
10-yd
-
Run speed (max)
82
INF Velo
3/11/21
-
OF Velo
-
C Velo
-
Pop Time
Fastball
82.2
Velocity (max)
3/11/21
78.4 - 81.9
Velo Range
3/11/21
2192
Spin Rate (avg)
3/11/21
Changeup
70 - 72
Velo Range
10/18/20
-
Spin Rate (avg)
Curveball
64.9 - 69.2
Velo Range
3/11/21
1929
Spin Rate (avg)
3/11/21
Slider
62 - 65
Velo Range
10/18/20
1714
Spin Rate (avg)
10/18/20
Positional Tools
2021
2020
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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).
82.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.91
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
72.0
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.
12.0
Hitting
2021
2020
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
97.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
84.7
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
328
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
203
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
17.0
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).
95.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
81.1
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
329
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
236
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
29.0
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.
Diamond Sports Workout
Mar 11, 2021
Trackman - Hitting
97.0
Exit Velocity (max)
84.7
Exit Velocity (avg)
203
Distance (avg)
328
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Arizona Uncommitted Upperclass
Oct 18, 2020
Trackman - Hitting
95.1
Exit Velocity (max)
81.3
Exit Velocity (avg)
224
Distance (avg)
321
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Washington Summer Kickoff
Jul 8, 2020
Trackman - Hitting
91.8
Exit Velocity (max)
80.9
Exit Velocity (avg)
245
Distance (avg)
329
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2021
2020
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.1
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
74.5
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
69.7
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.
23.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.9
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.
68.2
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.
Diamond Sports Workout
Mar 11, 2021
Blast - Hitting
22.0
Hand Speed (max)
20.1
Hand Speed (avg)
74.5
Bat Speed (max)
69.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
Arizona Uncommitted Upperclass
Oct 18, 2020
Blast - Hitting
23.0
Hand Speed (max)
20.9
Hand Speed (avg)
74.2
Bat Speed (max)
68.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Washington Summer Kickoff
Jul 8, 2020
Blast - Hitting
23.5
Hand Speed (max)
20.8
Hand Speed (avg)
77.7
Bat Speed (max)
68.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
Pitching
2021
2020
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.2
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.2
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).
2192
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.
27.3
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).
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).
1929
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).
71.9
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).
1491
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).
82.0
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
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).
1977
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.
25.3
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).
57.6
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).
1625
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).
68.9
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).
1498
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).
63.4
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).
1714
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).
Diamond Sports Workout
Mar 11, 2021
Trackman - Fastball
82.2
Velocity (max)
78.4 - 81.9
Velo Range
80.3
Eff Velocity (avg)
2,331
Spin Rate (max)
2,192
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
69.4
Velocity (max)
64.9 - 69.2
Velo Range
66.6
Eff Velocity (avg)
2,066
Spin Rate (max)
1,929
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
74.8
Velocity (max)
68.7 - 74.8
Velo Range
72.6
Eff Velocity (avg)
1,665
Spin Rate (max)
1,491
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Arizona Uncommitted Upperclass
Oct 18, 2020
Trackman - Fastball
82.0
Velocity (max)
78.6 - 81.5
Velo Range
79.5
Eff Velocity (avg)
2,219
Spin Rate (max)
2,125
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
64.7
Velocity (max)
61.9 - 64.7
Velo Range
62.6
Eff Velocity (avg)
1,754
Spin Rate (max)
1,714
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
74.9
Velocity (max)
68.9 - 73.9
Velo Range
70.2
Eff Velocity (avg)
1,643
Spin Rate (max)
1,517
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Washington Summer Kickoff
Jul 8, 2020
Trackman - Fastball
76.8
Velocity (max)
75.3 - 76.5
Velo Range
76.9
Eff Velocity (avg)
1,984
Spin Rate (max)
1,828
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
59.8
Velocity (max)
56.1 - 59.2
Velo Range
56.3
Eff Velocity (avg)
1,739
Spin Rate (max)
1,625
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
66.9
Velocity (max)
64.0 - 66.9
Velo Range
65.6
Eff Velocity (avg)
1,630
Spin Rate (max)
1,475
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
2020
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
2021
2020
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
77.8
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
55.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.2
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
Game Performance
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6-foot-2, 180 pounds with a long, lanky frame. Uses a wide, slightly open set-up in the box with subtle bend in his lower half. Athletic posture with slight rhythm in hands before using a low leg lift and “knee knock” move with his lower half. Low hand placement gets barrel on plane early & allows him to work quick/direct the ball. Weight stays centered as he rotates thru core and holds finish thru contact. Creates bat speed easily into a high, lofted finish. Defensively, shows a balanced pre-pitch set up with a quick hop prior to taking his first step. Adjusts posture to receive ball on the outside of his glove-arm side, then comes thru with steady momentum/tempo. Funnels ball deep into stance. Occasional ‘tap’ action on the exchange into throwing motion. Short, bent arm action with a high ¾ release & consistent ball flight. On the mound, uses a smooth, quick paced delivery with repeatable actions. Works from the left-side of the rubber. Stays tall with a high, athletic leg kick. Slight coil into back hip before breaking hands and getting down the mound. Back leg has some flexion into stride while keeping a level shoulder plane. Full, continuous arm action into high ¾ release. Lands under control with extension out front and a balanced finish thru release. Stays on top of the ball with all of his offerings and keeps everything around the zone.