83
Velocity (max)
7/09/24
CLASS OF 2025
RHP
3B
Jackson
Kobylarczyk
Kettle Moraine Lutheran (HS) • WI
6' 0" • 205.9LBS
R/R • 17yr 4mo
Travel Team: Stiks Hybrid 17U
6' 0" • 205.9LBSR/R • 17yr 4mo
Travel Team: Stiks Hybrid 17U
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
81.7 - 82.5
Velo Range
7/09/24
1968
Spin Rate (avg)
7/09/24
Changeup
75 - 77
Velo Range
7/09/24
1566
Spin Rate (avg)
7/09/24
Curveball
67.1 - 69.4
Velo Range
7/09/24
1953
Spin Rate (avg)
7/09/24
Positional Tools
Hitting
Hitting
Pitching
2024
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
82.1
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).
1968
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.
24.0
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).
1953
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).
75.8
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).
1566
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).
Appleton Summer ID
Jul 9, 2024
Trackman - Fastball
82.7
Velocity (max)
81.7 - 82.5
Velo Range
80.9
Eff Velocity (avg)
2,036
Spin Rate (max)
1,968
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
70.0
Velocity (max)
67.1 - 69.4
Velo Range
65.8
Eff Velocity (avg)
2,035
Spin Rate (max)
1,953
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
76.9
Velocity (max)
74.6 - 76.9
Velo Range
74.1
Eff Velocity (avg)
1,789
Spin Rate (max)
1,566
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
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
2024
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)
82.0
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)
76.0
Game Performance
Visual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
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RHP Jackson Kobylarczyk (Kettle Moraine Lutheran, 2025) is a 6-foot, 205-pound right-hander that showed feel for the zone throughout his ‘pen. Kobylarczyk showed feel to repeat his delivery, working online to the plate with a quick arm out of a ¾ slot. His fastball sat in the low-80s throughout his ‘pen topping out at 82.7 mph, playing with true four-seam action averaging 17.9 inches of carry and maxing at 19.5 inches. He showed two-offspeed pitches, the first was an upper-60s curveball flashing sharp 11/5 break and a mid-70s changeup that played with slight fading action that he showed feel to land in the zone for strikes.
Positional Profile: RHP/3B
Body: 6-1, 195-pounds. Stronger build with more fill on its way.
Delivery: Balanced leg lift, online, low leg swing finish to home, repeats.
Arm Action: RH. Short arm, online, high 3/4 slot, quick arm.
FB: T83, 82-82 mph. Forward life finish with carry and some arm side run, action to arm side, can command to areas. T2036, 1968 average rpm.
CB: 67-69 mph. Sharpness to the pitch, can land, same window as fastball. T2035, 1953 average rpm.
CH: 75-77 mph. Late fade and depth at the plate. T1789, 1566 average rpm.