81.4
Velocity (max)
4/10/24
CLASS OF 2028
RHP
1B
Jack
Postma
Barrington (HS) • IL
6' 3" • 180LBS
R/R • 14yr 7mo
Travel Team: Sparks North
6' 3" • 180LBS
R/R • 14yr 7mo
Travel Team: Sparks North
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
77 - 80
Velo Range
6/06/24
1694
Spin Rate (avg)
4/10/24
Changeup
68 - 69
Velo Range
6/06/24
1492
Spin Rate (avg)
4/10/24
Curveball
60 - 64
Velo Range
6/06/24
1650
Spin Rate (avg)
4/10/24
92.3
Exit Velocity (max)
7/24/24
84.5
Exit Velocity (avg)
7/24/24
307
Distance (max)
7/24/24
57
Sweet Spot %
7/24/24
21.6
Hand Speed (max)
7/24/24
76
Bat Speed (max)
7/24/24
10.9
Rot. Acc (max)
7/24/24
-
Hard Hit %
7.7
60
7/24/24
4.15
30-yd
7/24/24
1.7
10-yd
7/24/24
17.3
Run speed (max)
7/24/24
79
INF Velo
7/24/24
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2024
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.70
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
79.0
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
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
92.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
84.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
307
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
201
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
17.3
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.
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Trackman - Hitting
92.3
Exit Velocity (max)
84.5
Exit Velocity (avg)
201
Distance (avg)
307
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.6
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.7
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
76.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
72.9
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.
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Blast - Hitting
21.6
Hand Speed (max)
19.7
Hand Speed (avg)
76.0
Bat Speed (max)
72.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.4
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).
1694
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.
21.7
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).
60.0
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).
1650
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).
66.4
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).
1492
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).
Lockport Rising Stars ID
Apr 10, 2024
Trackman - Fastball
81.4
Velocity (max)
76.3 - 79.7
Velo Range
77.5
Eff Velocity (avg)
1,840
Spin Rate (max)
1,694
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
61.2
Velocity (max)
59.2 - 60.8
Velo Range
59.2
Eff Velocity (avg)
1,733
Spin Rate (max)
1,650
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
67.8
Velocity (max)
65.4 - 67.5
Velo Range
66.5
Eff Velocity (avg)
1,580
Spin Rate (max)
1,492
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
2024
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
2024
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)
78.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
60.0
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
Game Performance
2024
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.70
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.15
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.70
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.
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Swift
1.70
10-yd
4.15
30-yd
7.70
60-yd
17.3
Run speed (max)
2.02
RSi (max)
25.0
Jump Height (max)
Visual Edge
Pitch Ai
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Physical
2024
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: RHP/1B
Body: 6-3, 180-pounds. High-waisted, long-limbed frame, projectable.
Delivery: Slow, controlled, medium leg-lift into balance point, tall/fall lower half.
Arm Action: RH. Long draw out of the glove, releases by ear.
FB: T81, 76-80 mph. Firm out of the hand, plays with some sink, heavy arm-side run at times. T1840, 1694 average rpm.
CB: 59-61 mph. Gradual 11/5 action, has feel for the zone. Got better as the 'pen went on. T1733, 1650 average rpm.
CH: 65-67 mph. Arm-side fade, lands consistently to the arm side. Best of the offspeed offerings. T1580, 1492 average rpm.