78
Velocity (max)
8/08/23
CLASS OF 2024
RHP
1B
Derek
Vlietstra
Minisink Valley (HS) • NY
6' 5" • 190LBS
R/R • 17yr 11mo
Travel Team: Newburgh Redstorm
6' 5" • 190LBS
R/R • 17yr 11mo
Travel Team: Newburgh Redstorm
Rankings
2024 National
Rankings available to Premium Subscriber
2024 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
74.7 - 76.8
Velo Range
10/22/23
2042
Spin Rate (avg)
7/17/23
Curveball
63 - 64.6
Velo Range
10/22/23
758
Spin Rate (avg)
10/22/23
Slider
64.9 - 68.3
Velo Range
10/22/23
2005
Spin Rate (avg)
10/22/23
87.2
Exit Velocity (max)
7/17/23
77.1
Exit Velocity (avg)
7/17/23
289
Distance (max)
7/17/23
23
Sweet Spot %
7/17/23
23.9
Hand Speed (max)
7/17/23
72.7
Bat Speed (max)
7/17/23
15.5
Rot. Acc (max)
7/17/23
-
Hard Hit %
72
INF Velo
7/17/23
-
OF Velo
-
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).
72.0
Hitting
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
87.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.1
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).
125
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
10.6
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 Newburgh Red Storm Scout Day
Jul 17, 2023
Trackman - Hitting
87.2
Exit Velocity (max)
77.1
Exit Velocity (avg)
125
Distance (avg)
289
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
23.9
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.
72.7
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
65.4
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 Newburgh Red Storm Scout Day
Jul 17, 2023
Blast - Hitting
23.9
Hand Speed (max)
21.5
Hand Speed (avg)
72.7
Bat Speed (max)
65.5
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).
77.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.1
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).
1987
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).
63.9
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).
758
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
65.5
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).
1893
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).
2023 Last Chance Open: East
Oct 22, 2023
Trackman - Fastball
77.9
Velocity (max)
74.7 - 76.8
Velo Range
75.4
Eff Velocity (avg)
2,073
Spin Rate (max)
1,993
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
64.6
Velocity (max)
63.0 - 64.6
Velo Range
62.8
Eff Velocity (avg)
758
Spin Rate (max)
758
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
68.7
Velocity (max)
64.9 - 68.3
Velo Range
65.3
Eff Velocity (avg)
2,074
Spin Rate (max)
2,005
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Northeast Senior Games
Aug 8, 2023
Trackman - Fastball
77.6
Velocity (max)
73.8 - 76.2
Velo Range
75.7
Eff Velocity (avg)
2,116
Spin Rate (max)
1,960
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
67.0
Velocity (max)
62.9 - 66.9
Velo Range
64.3
Eff Velocity (avg)
1,891
Spin Rate (max)
1,820
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Newburgh Red Storm Scout Day
Jul 17, 2023
Trackman - Fastball
76.3
Velocity (max)
74.0 - 75.5
Velo Range
76.1
Eff Velocity (avg)
2,134
Spin Rate (max)
2,042
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
67.0
Velocity (max)
64.4 - 66.8
Velo Range
65.4
Eff Velocity (avg)
1,971
Spin Rate (max)
1,874
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
2023
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
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.
Pitching Velos
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
78.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.8
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.2
Game Performance
Visual Edge
Pitch Ai
Notes
Comments
Draft Reports
Contact
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Physical: 6-6, 180 pounds; Long, slight build.
Pitching: Uses a glove side setup working primarily from the stretch. Belt high leg drive with a slight lean over the belt. Has a long stride while landing slightly closed. Moderate arm swing while showing some scap load; low 3/4 slot. Spins off 1B side with finish. FB: Peak velo of 77 MPH, while sitting 73-77 MPH; arm side run with sink. SL: 62-67 MPH; short action.