87
Velocity (max)
7/15/21
CLASS OF 2022
RHP
SS
Henry
Stempky
Kellogg Community College
Cheboygan (HS) • MI
5' 10" • 170LBS
R/R • 20yr 3mo
Travel Team: Arsenal 18U
Cheboygan (HS) • MI
5' 10" • 170LBS
R/R • 20yr 3mo
Travel Team: Arsenal 18U
Rankings
2022 National
Rankings available to Premium Subscriber
2022 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
84 - 87
Velo Range
7/15/21
2150
Spin Rate (avg)
8/11/20
Changeup
63 - 64
Velo Range
2/09/20
-
Spin Rate (avg)
Curveball
75 - 76
Velo Range
6/22/21
1837
Spin Rate (avg)
6/22/21
88.3
Exit Velocity (max)
6/22/21
82.2
Exit Velocity (avg)
6/22/21
269
Distance (max)
6/22/21
40
Sweet Spot %
6/22/21
20.2
Hand Speed (max)
6/22/21
70.2
Bat Speed (max)
6/22/21
15.4
Rot. Acc (max)
6/22/21
-
Hard Hit %
7.28
60
6/22/21
-
30-yd
-
10-yd
-
Run speed (max)
84
INF Velo
8/11/20
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2021
2020
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.28
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
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.
12.1
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.46
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
84.0
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.
11.6
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).
88.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
82.2
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).
135
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
9.5
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).
86.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
74.6
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
258
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
140
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
15.1
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.
2021 Michigan Top Prospect Games (Invite Only)
Jun 22, 2021
Trackman - Hitting
88.3
Exit Velocity (max)
82.2
Exit Velocity (avg)
135
Distance (avg)
269
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2020 Northern Michigan Prospect Games (Invite Only)
Aug 11, 2020
Trackman - Hitting
86.8
Exit Velocity (max)
74.6
Exit Velocity (avg)
140
Distance (avg)
258
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2021
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
20.2
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.3
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
70.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.4
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.
2021 Michigan Top Prospect Games (Invite Only)
Jun 22, 2021
Blast - Hitting
20.2
Hand Speed (max)
19.3
Hand Speed (avg)
70.2
Bat Speed (max)
66.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2021
2020
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
86.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
84.7
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).
1816
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.
21.4
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).
74.8
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).
1837
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).
82.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.9
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).
2150
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
67.9
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).
1802
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).
2021 Michigan Top Prospect Games (Invite Only)
Jun 22, 2021
Trackman - Fastball
86.0
Velocity (max)
83.6 - 85.8
Velo Range
84.4
Eff Velocity (avg)
1,871
Spin Rate (max)
1,816
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
75.6
Velocity (max)
73.8 - 75.6
Velo Range
73.3
Eff Velocity (avg)
1,982
Spin Rate (max)
1,837
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2020 Northern Michigan Prospect Games (Invite Only)
Aug 11, 2020
Trackman - Fastball
82.6
Velocity (max)
79.7 - 82.1
Velo Range
79.6
Eff Velocity (avg)
2,213
Spin Rate (max)
2,150
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
70.7
Velocity (max)
65.2 - 70.7
Velo Range
66.4
Eff Velocity (avg)
2,232
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 %
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
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
2021
2020
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
87.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
84.2
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.3
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.0
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
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.1
Game Performance
Visual Edge
Pitch Ai
Notes
News
- Results From 2021 Michigan Top Prospect Games - Jun 24, 2021
- 2020 Northern Michigan Prospect Games - Advanced Metrics w/Trackman and Blast Tech - Aug 14, 2020
- Results From 2020 Northern Michigan Prospect Games - Aug 12, 2020
- 6/18-6/21 Western Michigan Limited Series - Scout Blog - Jun 26, 2020
- 2020 Scout Day: Northern Michigan Dogmen - Complete Evaluations - Mar 1, 2020
- Results from 2020 Scout Day: Northern Michigan Dogmen - Feb 10, 2020
- 2020 Scout Day Spotlight: Northern Michigan Dogmen - Jan 29, 2020
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Player Spotlight
Henry Stempky: RHP/SS, (2022) Cheboygan, MI. 5-foot-10, 170-pound. During batting practice, Stempky recorded an exit velocity of 88 mph. (66.38 mph bat speed average). (19.34 mph hand speed average). While in the infield, made throws at velocities up to 81 mph. Recorded a time of 7.28 in the 60-yard dash. On the mound, sat with his fastball at 83-85 mph with a max of 86 mph. Curveball (75-76 mph).
Scout Evaluation
Henry Stempky, Cheboygan, 2022, MI
Position: RHP/SS
Body: 5-foot-10, 170-pound.
Power: 88 mph exit velocity, average 82.17 mph. 66.38 mph bat speed average. 19.34 mph hand speed average.
Arm: 81 mph infield velocity.
Speed: 7.28 (60-yard).
FB: T86. 83-85 mph. (Max spin 1871; Avg 1816).
CB: 75-76 mph. (Max spin 1981; Avg 1836).
Pitching: On the mound has a calm motion throwing taking a step left keeping his hands close to his body while throwing with a short arm action. Pounds the zone well with some arm side run on the fastball. Sits on his back leg and drives well incorporating leg drive prior to delivering. Shows a progressive break on his curve.
Henry Stempky: RHP/SS, (2022) Cheboygan, MI. 5-foot-10, 170-pound. During batting practice, Stempky had an exit velocity of 85 mph. In the infield, his best throw was registered at 84 mph. During the event, recorded a 60 time of 7.57. On the mound, sat with his fastball at 80-82 mph with a max of 82 mph. Curveball (65-70 mph).
Hitting: At the plate hitting from the right side uses a stiff front leg and slightly open stance. Lowers his back shoulder during his swing creating lift at the plate. Elevates the ball when he hits.
Fielding: In the infield moves quickly to the baseball fielding out front while he attacks the hop. Gets to every ball in the field. Throws with effort from a high three-quarter arm angle.
Pitching: On the mound sets up in the middle of the rubber working at a rapid pace arriving to his balance point throwing with some effort falling towards the first baseline. Works the lower half of the zone showed a nice spin on his breaking ball. Change up with strong with similar arms deception pass the fastball down in the zone.