23
Hand Speed (max)
2/17/24
CLASS OF 2025
C
3B
Chaz
Kosko
South Fayette (HS) • PA
5' 11" • 211LBS
R/R • 17yr 11mo
Travel Team: Pittsburgh Stars
5' 11" • 211LBSR/R • 17yr 11mo
Travel Team: Pittsburgh Stars
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
66.6
Bat Speed (max)
2/17/24
15.4
Rot. Acc (max)
2/17/24
-
Hard Hit %
86.5
Exit Velocity (max)
2/17/24
76.2
Exit Velocity (avg)
2/17/24
289
Distance (max)
2/17/24
70
Sweet Spot %
2/12/22
8.53
60
2/12/22
4.28
30-yd
2/17/24
-
10-yd
14.3
Run speed (max)
2/17/24
-
INF Velo
-
OF Velo
76
C Velo
2/17/24
2.09 - 2.13
Pop Time
2/17/24
Fastball
74.3
Velocity (max)
6/12/22
70 - 74
Velo Range
5/28/22
1721
Spin Rate (avg)
6/12/22
Curveball
60.6 - 63
Velo Range
6/12/22
1551
Spin Rate (avg)
6/12/22
Positional Tools
2024
2022
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Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
2.09 - 2.13
Catcher Velocity
The athlete's maximum throwing velocity from the catcher position in the given event year. Measured in miles per hour (MPH).
76.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.53
Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
2.22 - 2.29
Catcher Velocity
The athlete's maximum throwing velocity from the catcher position in the given event year. Measured in miles per hour (MPH).
69.0
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.
9.0
Hitting
2024
2022
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
86.5
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
76.2
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
289
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
218
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
31.4
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).
76.4
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
70.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
248
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
161
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
18.3
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.
2024 PA Preseason ID: Southwest (Session 2)
Feb 17, 2024
Trackman - Hitting
86.5
Exit Velocity (max)
76.2
Exit Velocity (avg)
218
Distance (avg)
289
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
2022 Preseason All-State - Southwest (Morning Session)
Feb 12, 2022
Trackman - Hitting
76.4
Exit Velocity (max)
70.3
Exit Velocity (avg)
161
Distance (avg)
248
Distance (max)
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.
23.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
66.6
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
63.6
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.
2024 PA Preseason ID: Southwest (Session 2)
Feb 17, 2024
Blast - Hitting
23.0
Hand Speed (max)
20.9
Hand Speed (avg)
66.6
Bat Speed (max)
63.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
74.3
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
73.1
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).
1721
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.
23.6
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).
61.8
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).
1551
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).
2022 PA State Games (Session 1)
Jun 12, 2022
Trackman - Fastball
74.3
Velocity (max)
72.2 - 74.0
Velo Range
72.2
Eff Velocity (avg)
1,824
Spin Rate (max)
1,721
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
63.9
Velocity (max)
60.6 - 63.0
Velo Range
60.1
Eff Velocity (avg)
1,638
Spin Rate (max)
1,551
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
Pitching Velos
2022
2021
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
74.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
71.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
58.0
Game Performance
2024
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.28
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.
Visual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
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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.
Physical: Compact, durable 5-foot-11, 185lb frame with even proportions.
Pitching: RHP - Starts from the windup off the middle of the rubber; repeatable, simple delivery that finds balance at stack position. Late downward chest angle at release helps create some groundballs in the low-to-mid 70’s. Added 62-64 mph CB with gradual sweep across the plate for strikes.
Physical: 5-foot-11, 185 pounds; Sturdy, proportional build. 8.53 runner in the 60.
Offensively: RHH. Open setup, with feet just outside his shoulders; bat positioned at a 45 degree angle. Short take back with the hands with a slight leg-kick for timing. Stays behind the ball while showing an average effort from the legs. Showed a flat swing path with a two handed finish. More line drives than flyballs and groundballs with a peak exit velocity of 76 MPH via Trackman.
Defensively: Starts with a balanced setup; utilizing a traditional primary position while staying in an elevated position. Hands are firm with a clean transfer. Short take back from a high 3/4 arm slot. 2.22-2.28 pop times. C - 69 MPH.