@ArmstrongJack13 
84
Velocity (max)
2/28/21
CLASS OF 2022
RHP
1B
Jack
Armstrong
Shiloh (HS) • IL
6' 5" • 230LBS
R/R • 21yr 3mo
Travel Team: Decatur Commodores
Rankings
2022 National
Rankings available to Premium Subscriber
2022 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
83 - 84
Velo Range
2/28/21
2048
Spin Rate (avg)
2/28/21
Changeup
75.5 - 78
Velo Range
2/28/21
1675
Spin Rate (avg)
2/28/21
Curveball
72.9 - 73.5
Velo Range
2/28/21
2153
Spin Rate (avg)
2/28/21
Positional Tools
Hitting
Hitting
Pitching
2021
Sign in to view rankings 
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.5
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).
2048
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.
24.5
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).
73.2
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).
2153
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).
76.8
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).
1675
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).
Chicago Preseason I.D.
Feb 28, 2021
Trackman - Fastball
83.9
Velocity (max)
83.1 - 83.9
Velo Range
84.5
Eff Velocity (avg)
2,129
Spin Rate (max)
2,048
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
73.6
Velocity (max)
72.9 - 73.5
Velo Range
72.5
Eff Velocity (avg)
2,226
Spin Rate (max)
2,153
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
78.2
Velocity (max)
75.5 - 78.0
Velo Range
76.9
Eff Velocity (avg)
1,737
Spin Rate (max)
1,675
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
2021
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
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)
83.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
77.0
Game Performance
Vizual Edge
Pitch Ai
Notes
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Positional Profile: RHP/1B
Body: 6-5, 230-pounds.
Delivery: Tall and fall delivery, smooth tempo, slow leg lift, strong front side, repeatable, lands square, works in line to target.
Arm Action: R/R. Long arm action, 3/4 arm slot.
FB: T84, 83-84 mph. Mostly straight, thrown for strikes. T2128, 2048 average rpm.
CB: 73-73 mph. 11/5 shape, sweeping action. T2225, 2153 average rpm.
CH: 76-78 mph. Arm side run, arm speed similar to fastball. T1737, 1674 average rpm.