90.4
Velocity (max)
6/04/23
CLASS OF 2024
LHP
1B
David
Roberts
Arizona State
Liberty (HS) • CA
6' 2" • 210LBS
R/L • 18yr 3mo
Travel Team: Tri County Redsox scout team
Liberty (HS) • CA
6' 2" • 210LBS
R/L • 18yr 3mo
Travel Team: Tri County Redsox scout team
Rankings
2024 National
Rankings available to Premium Subscriber
2024 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
86.8 - 89.1
Velo Range
6/04/23
1870
Spin Rate (avg)
6/04/23
Changeup
79.3 - 82.3
Velo Range
6/04/23
1261
Spin Rate (avg)
6/04/23
Slider
77.1 - 79.8
Velo Range
6/04/23
1780
Spin Rate (avg)
6/04/23
Positional Tools
Hitting
Hitting
Pitching
2023
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
90.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
87.9
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).
1870
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.
21.3
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.8
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).
1261
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).
78.5
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).
1780
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).
NorCal ProCase
Jun 4, 2023
Trackman - Fastball
90.4
Velocity (max)
86.8 - 89.1
Velo Range
86.0
Eff Velocity (avg)
1,952
Spin Rate (max)
1,870
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
79.9
Velocity (max)
77.1 - 79.8
Velo Range
76.7
Eff Velocity (avg)
1,888
Spin Rate (max)
1,780
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
83.9
Velocity (max)
79.3 - 82.3
Velo Range
79.6
Eff Velocity (avg)
1,754
Spin Rate (max)
1,261
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
Pitching Velos
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
90.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
86.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.5
Game Performance
Visual Edge
Pitch Ai
Notes
Comments
Draft Reports
Contact
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Event: NorCal ProCase
Positional Profile: LHP
Physical: 6-foot-2, 210-pounds; broad build, frame built to handle future size, strength, and muscularity.
Delivery: Hands and legs move simultaneously into a high and wide leg kick. Gets really low on his back leg before driving forward.
Arm Action: Arm goes straight behind back leg when hands break, no reach back, whips arm forward as he strides down the hill. True 3/4 arm slot.
FB: T90.4 mph, 86.8 - 89.1 mph range, 1870 avg spin; Thrives on the arm angle to make batters uncomfortable with tons of horizontal movement from release and some tail.
SL: 77.1 - 79.8 mph, 1780 avg spin; Tunnels the slider off the FB, late break with the same shape until it cuts into the back hip. Showed he can spot on the outside or go back hip against RHH.
CH: 79.3 - 82.3 mph, 1261 avg spin; circle-change grip, tails and dives away from the plate. All three pitches tunnel extremely well, appearance is the same until the ball is 1/4 of the distance from the plate.
at De La Salle; NCS D1 semi-final - St. Mary's commit; Starting pitcher, sturdy body, long sling-ish arm action, arm swings behind back toward SS on backside, 3/4 slot, ball comes out easy if inconsistent with release point due to the challenge of timing with long arm actions, when in slide step the arm action and delivery were more consistent, slider is small with a bit more lateral break vs depth/horizontal break, change-up flashed as potential plus pitch and swing/miss pitch while also showing that his feel for release is still developing. Plenty of talent here, with plenty to work on and improve.