@Opdk2025 
86
Velocity (max)
7/17/24
CLASS OF 2025
LHP
OF
Owen
Klosinski
Lakes Community (HS) • IL
6' 0" • 173LBS
L/L • 19yr 1mo
Travel Team: Slammers Illinois
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
81 - 86
Velo Range
2/17/24
2232
Spin Rate (avg)
3/03/24
Changeup
75 - 78
Velo Range
3/03/24
1572
Spin Rate (avg)
2/17/24
Curveball
70 - 73
Velo Range
7/17/24
2086
Spin Rate (avg)
3/03/24
Slider
70.2 - 72
Velo Range
6/05/23
2134
Spin Rate (avg)
3/03/24
95.4
Exit Velocity (max)
3/03/24
84.9
Exit Velocity (avg)
3/12/23
335
Distance (max)
3/12/23
60
Sweet Spot %
3/12/23
22.8
Hand Speed (max)
3/03/24
76.4
Bat Speed (max)
6/05/23
17.7
Rot. Acc (max)
6/05/23
20
Hard Hit %
3/03/24
6.75
60-yd
6/05/23
3.66
30-yd
6/05/23
1.60
10-yd
6/05/23
19.9
Run speed (max)
6/05/23
-
INF Velo
92
OF Velo
3/03/24
-
C Velo
-
Pop Time
Positional Tools
2024
2023
2022
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.87
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
92.0
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.
13.9
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.75
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
89.0
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.
13.9
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.16
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
81.0
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.
12.3
Hitting
2024
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
95.4
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
82.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
331
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
195
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
22.3332
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).
93.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
80.7
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
335
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
203
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
23.4106
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.
South Milwaukee Preseason ID
Mar 3, 2024
Trackman - Hitting
95.4
Exit Velocity (max)
82.5
Exit Velocity (avg)
195
Distance (avg)
331
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Slammers Scout Day
Jun 5, 2023
Trackman - Hitting
93.8
Exit Velocity (max)
77.3
Exit Velocity (avg)
223
Distance (avg)
326
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Madison Preseason ID
Mar 12, 2023
Trackman - Hitting
87.9
Exit Velocity (max)
84.9
Exit Velocity (avg)
180
Distance (avg)
335
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Chicagoland Open
Aug 21, 2022
Trackman - Hitting
87.9
Exit Velocity (max)
79.2
Exit Velocity (avg)
172
Distance (avg)
273
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
Hitting
2024
2023
2022
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.8
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.5
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
73.6
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
70.6
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.7
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.6
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
76.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
70.3
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.
21.9
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.1
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
68.6
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.5
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.
South Milwaukee Preseason ID
Mar 3, 2024
Blast - Hitting
22.8
Hand Speed (max)
21.5
Hand Speed (avg)
73.6
Bat Speed (max)
70.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Slammers Scout Day
Jun 5, 2023
Blast - Hitting
22.7
Hand Speed (max)
21.4
Hand Speed (avg)
76.4
Bat Speed (max)
69.1
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Madison Preseason ID
Mar 12, 2023
Blast - Hitting
22.5
Hand Speed (max)
21.9
Hand Speed (avg)
74.4
Bat Speed (max)
71.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Chicagoland Open
Aug 21, 2022
Blast - Hitting
21.9
Hand Speed (max)
21.1
Hand Speed (avg)
68.6
Bat Speed (max)
66.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
2023
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.6
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).
2203
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.
26.4
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).
66.9
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).
2056
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).
76.3
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).
1534
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).
70.7
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).
2117
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).
83.3
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.7
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).
2004
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.
24.8
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).
66.9
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).
1925
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).
73.5
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).
1367
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).
69.5
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).
2003
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).
79.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
77.4
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).
2049
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.
26.5
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).
65.4
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).
1873
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).
70.6
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).
1442
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).
Cutter
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
69.3
Cutter
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).
1858
Cutter
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
South Milwaukee Preseason ID
Mar 3, 2024
Trackman - Fastball
85.1
Velocity (max)
83.1 - 84.8
Velo Range
83.2
Eff Velocity (avg)
2,359
Spin Rate (max)
2,232
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
68.7
Velocity (max)
67.0 - 68.7
Velo Range
67.5
Eff Velocity (avg)
2,196
Spin Rate (max)
2,086
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
70.9
Velocity (max)
69.6 - 70.9
Velo Range
69.8
Eff Velocity (avg)
2,229
Spin Rate (max)
2,134
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
78.0
Velocity (max)
74.6 - 78.0
Velo Range
75.4
Eff Velocity (avg)
1,573
Spin Rate (max)
1,496
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
West Milwaukee Preseason ID
Feb 17, 2024
Trackman - Fastball
85.9
Velocity (max)
81.6 - 84.9
Velo Range
83.5
Eff Velocity (avg)
2,367
Spin Rate (max)
2,177
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
66.7
Velocity (max)
65.1 - 66.7
Velo Range
64.1
Eff Velocity (avg)
2,124
Spin Rate (max)
2,025
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
72.3
Velocity (max)
70.3 - 71.9
Velo Range
70.0
Eff Velocity (avg)
2,167
Spin Rate (max)
2,100
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
76.8
Velocity (max)
75.3 - 76.8
Velo Range
74.9
Eff Velocity (avg)
1,619
Spin Rate (max)
1,572
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Slammers Scout Day
Jun 5, 2023
Trackman - Fastball
82.2
Velocity (max)
78.4 - 82.0
Velo Range
79.3
Eff Velocity (avg)
2,234
Spin Rate (max)
2,018
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
68.3
Velocity (max)
67.1 - 68.1
Velo Range
65.2
Eff Velocity (avg)
2,005
Spin Rate (max)
1,979
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
72.0
Velocity (max)
70.2 - 72.0
Velo Range
69.5
Eff Velocity (avg)
2,139
Spin Rate (max)
2,076
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
76.2
Velocity (max)
74.2 - 76.0
Velo Range
73.5
Eff Velocity (avg)
1,627
Spin Rate (max)
1,412
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Madison Preseason ID
Mar 12, 2023
Trackman - Fastball
83.3
Velocity (max)
79.8 - 82.8
Velo Range
81.0
Eff Velocity (avg)
2,115
Spin Rate (max)
1,989
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
66.3
Velocity (max)
65.6 - 66.3
Velo Range
64.2
Eff Velocity (avg)
1,884
Spin Rate (max)
1,859
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
68.1
Velocity (max)
67.2 - 68.0
Velo Range
66.2
Eff Velocity (avg)
1,951
Spin Rate (max)
1,910
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
72.4
Velocity (max)
70.9 - 72.2
Velo Range
70.3
Eff Velocity (avg)
1,337
Spin Rate (max)
1,310
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Chicagoland Open
Aug 21, 2022
Trackman - Fastball
79.6
Velocity (max)
75.6 - 79.2
Velo Range
76.8
Eff Velocity (avg)
2,105
Spin Rate (max)
2,049
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
66.3
Velocity (max)
64.5 - 66.3
Velo Range
63.5
Eff Velocity (avg)
1,980
Spin Rate (max)
1,873
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - ChangeUp
71.4
Velocity (max)
70.3 - 71.1
Velo Range
70.4
Eff Velocity (avg)
1,578
Spin Rate (max)
1,442
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Cutter
71.2
Velocity (max)
67.7 - 70.9
Velo Range
68.3
Eff Velocity (avg)
1,882
Spin Rate (max)
1,858
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
2024
2023
2022
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.
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.
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.
West Milwaukee Preseason ID
Feb 17, 2024
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Slammers Scout Day
Jun 5, 2023
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Madison Preseason ID
Mar 12, 2023
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Pitching Velos
2024
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)
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)
68.8
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.2
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
70.5
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)
80.7
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.8
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.2
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.2
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)
78.3
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.8
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.
1.68
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.87
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
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.
1.60
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.66
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.75
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.
1.71
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.93
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.16
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.
Slammers Scout Day
Jun 5, 2023
Swift
1.60
10-yd
3.66
30-yd
6.75
60-yd
19.9
Run speed (max)
1,694
Jump Power (max)
31.6
Jump Height (max)
31.5
Jump Height (avg)
Madison Preseason ID
Mar 12, 2023
Swift
2.02
RSI (max)
2.02
RSI (avg)
1,598
Jump Power (max)
29.7
Jump Height (max)
29.4
Jump Height (avg)
Chicagoland Open
Aug 21, 2022
Swift
1.71
10-yd
3.93
30-yd
7.16
60-yd
19.0
Run speed (max)
8.4
Run Speed (avg)
2.64
RSI (max)
2.64
RSI (avg)
1,528
Jump Power (max)
29.4
Jump Height (max)
28.9
Jump Height (avg)
Vizual 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.
74.3
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.
53.94
Pitch Ai
2022
Arm Speed
The maximum speed, in the direction of home plate, that the wrist is traveling. Measured in meters per second (m/s)
Arm Slot
Angle of the forearm relative to the ground between maximum external rotation (MER) and ball release (BR). Which can be a powerful player comparison metric, delivered in degrees.
Knee Extension Velo
The angular velocity of the front knee straightening after foot plant, which provides indicators of velocity potential. Measured in degrees per second.
Deception
The amount of time that the ball is visible to the hitter, after the instant of front foot strike. Measures in milliseconds.
Hip-Shoulder Separation
The difference in angle of between the hips and shoulders, occurring close to the foot plant. Measured in degrees.
Chicagoland Open
Aug 21, 2022
ProPlayAI - Foot Plant
Elbow Flexion (avg)
Shoulder Abduction (avg)
Hip Shoulder Seperation (avg)
ProPlayAI - MER
External Rotation (avg)
Stride Length (avg)
Horizontal Abduction (avg)
ProPlayAI - Release
Arm Speed (max)
Arm Speed (avg)
Knee Extension Velocity (max)
Knee Extension Velocity (avg)
Knee Flexion (avg)
Arm Slot (avg)
Lateral Trunk Tilt (avg)
Arm Path (avg)
Deception (avg)
Torque (avg)
Efficiency (avg)
Sequencing (avg)
Notes
News
- IHSA Diamond Notes: Week 7 - May 7, 2025
- Recruiting Roundup: Week of 11/22 - Nov 22, 2024
- South Milwaukee Preseason ID: Outfield Analysis - May 15, 2024
- West Milwaukee Preseason ID: Pitcher Analysis - Apr 29, 2024
- Slammers Scout Day: Takeaways - Jul 5, 2023
- Slammers Scout Day: Data Dive - Jun 12, 2023
- Chicagoland Open: Statistical Analysis - Aug 25, 2022
Comments
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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.
Verbally committed to Wisconsin-Stevens Point.
Owen Klosinski, Lakes Community High School (IL), 2025
Positional Profile: LHP/OF
Body: 6-0, 173-pounds. Athletic build with strength throughout.
Delivery: Stretch only, tall/fall lower-half, works in-line, simple and repeatable with a balanced finish.
Arm Action: LH. Controlled arm circle into a 3/4 slot.
FB: T85, 83-85 mph. Life out of the hand with heavy running action at times, deceptive angle to the hitter. T2359, 2232 average rpm.
CB: 67-69 mph. Sharp 1/7 shape, sweeping action. T2196, 2086 average rpm.
SL: 70-71 mph. Lateral 10/4 shape, some feel around and beneath the zone. T2229, 2134 average rpm.
CH: 75-78 mph. Thrown with intent, pulled off to arm-side at times. T1573, 1496 average rpm.
ATH: 6.87 runner in the 60. 1.68 in the 10 yard split. 32.80 max vertical.
Owen Klosinski, Lakes Community High School (IL), 2025
Positional Profile: LHP/OF
Body: 6-0, 173-pounds. Athletic build with strength throughout.
Hit: LHH. Narrow set up, early toe down to hitting position. Flat and short path with hands, centered move with lower half, well sequenced. 70.6 mph bat speed with 13 G's of rotational acceleration.
Power: 95 max exit velocity, averaged 82.5 mph. 331' max distance.
Arm: LH. OF-92 mph. 3/4 slot, quick arm, carry through the target.
Defense: One hand gather into a shuffle step.
ATH: 6.87 runner in the 60. 1.68 in the 10 yard split. 32.80 max vertical.
Owen Klosinski, Lakes Community (IL), 2025
Positional Profile: LHP/OF
Body: 6-0, 172-pounds. Sturdy build, strength throughout.
Delivery: Stretch only, tall and fall, easy mover.
Arm Action: LH. Quick arm with whip out front, high 3Q slot.
FB: T86, 81-86 mph. Jumps out of hand, drives through the catcher. T2207, 2150 average rpm.
CB: 67-67 mph. 12/6 break and shape with depth. T2042, 2042 average rpm.
CH: 75-77 mph. Falls out of zone at the plate, with arm side fade. T1619, 1572 average rpm.
LHP/OF Owen Klosinski (Lakes Community, 2025) is a 5-foot-11, 165-pound, athletic and projectable left/left pitcher and outfielder. Kosinski showed well on the mound with a loose and quick arm. His fastball sat 78-82 mph with some sink and ride through the zone. His curveball showed a sharp 11/5 shape with feel for the zone, and his slider showed slurve actions. Rounding out his four-pitch mix he showed a change-up that plays similar to the fastball. During batting practice, Klosinski showed some twitch in his swing with an uphill path through the zone. He also ran the fastest 60 of the day with a 6.75.
Positional Profile: LHP/OF
Body: 5-11, 165-pounds. Well proportioned, room to add strength.
Delivery: Stretch only, high leg lift into tall and fall delivery.
Arm Action: LH. Stab down out of glove, low 3/4 slot.
FB: T83, 80-83 mph. Four-seam play with slight cut, two-seam plays with run. T2115, 1989 average rpm.
CB: 66-66 mph. Plays with some depth. T1884, 1859 average rpm.
SL: 67-68 mph. Horizontal action. T1951, 1910 average rpm.
CH: 71-72 mph. Mostly straight with some fade. T1337, 1310 average rpm.
Positional Profile: LHP/OF
Body: 5-11, 165-pounds. Well proportioned, room to add strength.
Hits: LHH. Stock set up, relaxed hands, flatter barrel set up. Short to the ball with quick hands, uphill path, uses the whole field, sneaky pop off the bat.
Power: 88 max exit velocity, averaged 84.9 MPH. 335' max distance.
Arm: LH. OF-89 mph. Loose, quick arm, 3/4 slot.
Defense: One-hand gather, works towards home, in-stride.
Run: 6.84 runner in the 60.
Vizual Edge: 74.3 Edge Score
Positional Profile: LHP/OF
Body: 5-11, 165-pounds. Well proportioned, room to add strength.
Delivery: Stretch only, high leg lift into tall and fall delivery.
Arm Action: LH. Stab down out of glove, low 3/4 slot.
FB: T83, 80-83 mph. Four-seam play with slight cut, two-seam plays with run. T2115, 1989 average rpm.
CB: 66-66 mph. Plays with some depth. T1884, 1859 average rpm.
SL: 67-68 mph. Horizontal action. T1951, 1910 average rpm.
CH: 71-72 mph. Mostly straight with some fade. T1337, 1310 average rpm.
Hits: LHH. Stock set up, relaxed hands, flatter barrel set up. Short to the ball with quick hands, uphill path, uses the whole field, sneaky pop off the bat.
Power: 88 max exit velocity, averaged 84.9 MPH. 335' max distance.
Arm: LH. OF-89 mph. Loose, quick arm, 3/4 slot.
Defense: One-hand gather, works towards home, in-stride.
Run: 6.84 runner in the 60.
Vizual Edge: 74.3 Edge Score
Positional Profile: LHP/OF
Body: 5-11, 165-pounds. Well proportioned, room to add strength.
Hits: LHH. Stock set up, relaxed hands, flatter barrel set up. Short to the ball with quick hands, uphill path, uses the whole field, sneaky pop off the bat.
Power: 88 max exit velocity, averaged 84.9 MPH. 335' max distance.
Arm: LH. OF-89 mph. Loose, quick arm, 3/4 slot.
Defense: One-hand gather, works towards home, in-stride.
Run: 6.84 runner in the 60.
Vizual Edge: 74.3 Edge Score
Listed at 5-foot-10, 160-pounds with all sorts of room to add on strength in the coming years, Klosinski ran a 7.16 60 and took one of the better BP rounds on the day. He stays short and quick to the baseball and was all over the barrel in his round; 70% sweet-spot percentage and 60% line-drive percentage throughout his round. He also topped at 81 mph from the outfield with clean actions. On the mound he works with a simple operation on the mound, moving with a high leg-kick into balance point before going into a drop/drive lower-half, striding in-line with the plate and landing with a closed front foot. His arm shows looseness throughout its path, coming from a ¾ release. One of the more impressive aspects to Klosinski is his legitimate four-pitch mix, starting with his sinking fastball at 75-79 mph, T79.6 mph. To pair off his fastball he went to a sharp 1/7 curveball at 64-66 mph, a fading changeup at 70-71 mph and a cutter that plays with sharp horizontal 2/8 action, 67-71 mph.
Positional Profile: OF/LHP
Body: 5-10, 160-pounds. Room for added strength.
Delivery: Stretch only, simple operation, high leg-kick into balance point, drop/drive lower-half that remains in-line down the mound, front foot lands slightly closed.
Arm Action: LH. Loose arm swing into a 3/4 slot.
FB: T79.6, 76-79 mph. Clean out of the hand with sinking action. T2105, 2049 average rpm.
CB: 64-66 mph. Sharp 1/7 shape, feel for the zone. T1980, 1873 average rpm.
CH: 70-71 mph. Fades to the arm-side. T1578, 1442 average rpm.
CUT: 68-71 mph. Sharp horizontal 10/4 action.
Hit: LHH. Wide setup, smooth load and toe-tap stride. Stays short and quick to the ball, jumps off the barrel at times. Consistent hard contact to the middle of the field.
Power: 88 max exit velocity, averaged 79.2 mph. 273’ max distance.
Arm: LH. OF - 81 mph. Low 3/4 slot accurate on the bag.
Defense: Soft hands, clean footwork, clean exchange.
Run: 7.16 runner in the 60.