86
Velocity (max)
2/04/23
CLASS OF 2023
RHP
SS
Kaleb
Zabielski
Burlington (HS) • WI
5' 10" • 175LBS
R/R • 19yr
Travel Team: Merchants Baseball Academy
5' 10" • 175LBS
R/R • 19yr
Travel Team: Merchants Baseball Academy
Rankings
2023 National
Rankings available to Premium Subscriber
2023 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
Fastball
83 - 85
Velo Range
2/04/23
2099
Spin Rate (avg)
2/04/23
Changeup
74.1 - 76
Velo Range
2/04/23
1434
Spin Rate (avg)
7/05/22
Curveball
67 - 71.3
Velo Range
2/04/23
1832
Spin Rate (avg)
2/04/23
Slider
72.1 - 74.1
Velo Range
7/05/22
1977
Spin Rate (avg)
7/05/22
87.7
Exit Velocity (max)
2/04/23
75.4
Exit Velocity (avg)
2/04/23
299
Distance (max)
2/04/23
75
Sweet Spot %
7/05/22
22.9
Hand Speed (max)
7/05/22
78
Bat Speed (max)
2/04/23
16.2
Rot. Acc (max)
7/05/22
-
Hard Hit %
7.1
60
7/05/22
3.92
30-yd
7/05/22
1.69
10-yd
7/05/22
19.3
Run speed (max)
7/05/22
84
INF Velo
2/04/23
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2023
2022
Sign in to view rankings 
Home to First
The athlete's fastest home-to-first time in the given event year. Measured from bat-on-ball to foot-on-bag, in seconds (s).
4.01
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
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.10
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.
11.9
Hitting
2023
2022
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
87.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
75.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
299
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
163
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
15.2
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).
84.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
74.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
266
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
202
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
23.7
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.
Kenosha Preseason ID
Feb 4, 2023
Trackman - Hitting
87.7
Exit Velocity (max)
75.4
Exit Velocity (avg)
163
Distance (avg)
299
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Northwest Suburban Open
Jul 5, 2022
Trackman - Hitting
84.8
Exit Velocity (max)
74.3
Exit Velocity (avg)
202
Distance (avg)
266
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2023
2022
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.1
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.0
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
78.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
70.7
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.
22.9
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
70.3
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
65.6
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.
Kenosha Preseason ID
Feb 4, 2023
Blast - Hitting
22.1
Hand Speed (max)
20.0
Hand Speed (avg)
78.0
Bat Speed (max)
70.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Northwest Suburban Open
Jul 5, 2022
Blast - Hitting
22.9
Hand Speed (max)
20.2
Hand Speed (avg)
70.3
Bat Speed (max)
65.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2023
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.7
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).
2099
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.
25.1
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).
69.2
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).
1832
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).
75.1
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).
1376
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).
72.7
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).
1899
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.8
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).
1857
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.
23.0
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).
68.2
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).
1620
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).
73.6
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).
1434
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).
73.1
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).
1977
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).
Kenosha Preseason ID
Feb 4, 2023
Trackman - Fastball
85.7
Velocity (max)
82.6 - 84.9
Velo Range
82.2
Eff Velocity (avg)
2,203
Spin Rate (max)
2,099
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
72.1
Velocity (max)
67.0 - 71.3
Velo Range
67.2
Eff Velocity (avg)
1,922
Spin Rate (max)
1,832
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
73.8
Velocity (max)
71.5 - 73.8
Velo Range
70.7
Eff Velocity (avg)
1,933
Spin Rate (max)
1,899
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
76.4
Velocity (max)
74.1 - 76.0
Velo Range
74.1
Eff Velocity (avg)
1,527
Spin Rate (max)
1,376
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Northwest Suburban Open
Jul 5, 2022
Trackman - Fastball
82.9
Velocity (max)
79.6 - 81.9
Velo Range
78.3
Eff Velocity (avg)
1,930
Spin Rate (max)
1,857
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
68.7
Velocity (max)
67.6 - 68.7
Velo Range
65.3
Eff Velocity (avg)
1,684
Spin Rate (max)
1,620
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
74.1
Velocity (max)
72.1 - 74.1
Velo Range
70.4
Eff Velocity (avg)
2,038
Spin Rate (max)
1,977
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
75.1
Velocity (max)
72.2 - 75.0
Velo Range
70.4
Eff Velocity (avg)
1,519
Spin Rate (max)
1,434
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Pitch Scores
2023
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.
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.
Kenosha Preseason ID
Feb 4, 2023
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Pitching Velos
2023
2022
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)
84.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.0
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)
81.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.0
Game Performance
2024
2023
2022
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.69
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.92
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.10
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.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.77
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.01
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.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.69
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.92
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.10
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.
Kenosha Preseason ID
Feb 4, 2023
Swift
1.77
10-yd
4.01
30-yd
18.3
Run speed (max)
1.64
RSi (max)
2.08
RSi (avg)
1,512
Jump Power (max)
27.0
Jump Height (max)
20.6
Jump Height (avg)
Northwest Suburban Open
Jul 5, 2022
Swift
1.69
10-yd
3.92
30-yd
7.10
60-yd
19.3
Run speed (max)
8.4
Run Speed (avg)
1.68
RSi (max)
1.68
RSi (avg)
1,385
Jump Power (max)
24.5
Jump Height (max)
24.4
Jump Height (avg)
Visual Edge
2023
2022
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
71.67
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
66.58
Pitch Ai
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Comments
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Zabielski is a two-way prospect who performed well at the showcase on Saturday. First, at the plate, Zabielski used his mechanically sound swing to spray line drives all over the field with a max EV in the high-80s. He continued his strong showing in the infield with his soft hands and quick feet to field through the ball and make accurate throws through first base. On the mound, Zabileski showcased an athletic repeatable delivery and a fastball up to 85.7 mph through areas of the zone for strikes. He also used his bigger lateral breaking curveball both in the zone for strikes and expanding below to get chase’s and swing and miss. His slider was a shorter, quicker lateral breaking ball and he flashed a potential weapon in his change-up with late depth and fade.
Positional Profile: RHP/SS
Body: 5-10, 175-pounds. Strong well proportioned frame with broad shoulders
Delivery: Meidum online tuck, online land, medium leg swing finish through home
Arm Action: RH. Medium online arc, up on time, quick arm, 3Q slot
FB: T86, 83-85 mph. Carry and finish through areas T2203, 2099 average rpm.
CB: 67-71 mph. Bigger lateral breaker, can land and get below zone T1922, 1832 average rpm.
SL: 72-74 mph. Shorter quick lateral breaker, can land T1933, 1899 average rpm.
CH: 74-76 mph. Fade and depth with sell, developing feel, potential weapon T1527, 1376 average rpm.
Positional Profile: RHP/SS
Body: 5-10, 175-pounds. Strong well proportioned frame with broad shoulders
Hits: RHH. Stock set up, relaxed hands Little gather back gets to storng hitting position, direct with quick hands and length through the ball, can drive the ball to both gaps
Power: 88 max exit velocity, averaged 75.4 MPH. 299' max distance.
Arm: RH. INF-84 mph.High 3Q slot, shows multiple arm angles
Defense: Quick feet, fields through ball, funnels, out front,
Vizual Edge: 71.67 Edge Score
Positional Profile: RHP/SS
Body: 5-10, 170-pounds. Athletic body.
Delivery: Uptempo, short point of balance, shoulders close off to home, remains in-line to the plate.
Arm Action: RH. Short, quick arm action, 3/4 slot.
FB: T82.9, 79.6-81.9 mph. Heavy, some sink. T1930, 1857 average rpm.
CB: 67.6-68.7 mph. Loose spin, 11/5 break, developing shape. T1683, 1620 average rpm.
SL: 72.1-74.1 mph. Tight spin at times with 10/4 shape. T2037, 1976 average rpm.
CH: 72.2-75.0 mph. Downer action. T1518, 1433 average rpm.
Hit: RHH. Wide base, high hands, balanced start position. Loose arms, short to the ball with extension through the zone, uphill path, used the whole field.
Power: 84.8 max exit velocity, averaged 74.3 mph. 265’ max distance.
Arm: RH. INF - 79 mph. Short, quick arm action
Defense: Plays aggressively through the ball, sure-handed, clean transfer on turns.
Run: 7.10 runner in the 60. Forward-lean, athletic mover.