82.7
Velocity (max)
9/30/23
CLASS OF 2025
LHP
OF
Kieran
Kostanoski
CBA-Albany (HS) • NY
6' 3" • 170LBS
L/L • 17yr 9mo
Travel Team: South Troy Dodgers
6' 3" • 170LBS
L/L • 17yr 9mo
Travel Team: South Troy Dodgers
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
77.9 - 81.2
Velo Range
9/30/23
1996
Spin Rate (avg)
9/30/23
Curveball
69.8 - 70.4
Velo Range
9/30/23
2488
Spin Rate (avg)
9/30/23
90.7
Exit Velocity (max)
9/30/23
-
Exit Velocity (avg)
-
Distance (max)
-
Sweet Spot %
21.8
Hand Speed (max)
9/30/23
75.4
Bat Speed (max)
9/30/23
16.4
Rot. Acc (max)
9/30/23
-
Hard Hit %
78
INF Velo
9/30/23
83
OF Velo
9/30/23
-
C Velo
-
Pop Time
Positional Tools
2023
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Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
78.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
83.0
Hitting
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
90.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
79.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
316
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
250
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
31.0
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.
2023 NY Fall Top Prospect Games
Sep 30, 2023
Trackman - Hitting
90.7
Exit Velocity (max)
79.9
Exit Velocity (avg)
250
Distance (avg)
316
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Hitting
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.8
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.7
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
75.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
67.0
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.
2023 NY Fall Top Prospect Games
Sep 30, 2023
Blast - Hitting
21.8
Hand Speed (max)
20.7
Hand Speed (avg)
75.4
Bat Speed (max)
67.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2023
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).
79.5
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).
1996
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).
70.1
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).
2488
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).
Sinker
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.1
Sinker
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).
1904
Sinker
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
2023 NY Fall Top Prospect Games
Sep 30, 2023
Trackman - Fastball
82.7
Velocity (max)
77.9 - 81.2
Velo Range
78.6
Eff Velocity (avg)
2,173
Spin Rate (max)
1,996
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
70.4
Velocity (max)
69.8 - 70.4
Velo Range
68.5
Eff Velocity (avg)
2,512
Spin Rate (max)
2,488
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Sinker
76.7
Velocity (max)
73.7 - 76.6
Velo Range
74.4
Eff Velocity (avg)
2,031
Spin Rate (max)
1,904
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
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
Sinker
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.
Sinker
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.
Sinker
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
Pitching Velos
Game Performance
Visual Edge
Pitch Ai
Notes
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