@DeanKostaM26 89.1
Velocity (max)
3/01/25
CLASS OF 2026
RHP
Dean
Miller
Glenbrook North (HS) • IL
6' 2" • 178LBS
R/R • 17yr 3mo
Travel Team: ITB-MARUCCI
6' 2" • 178LBS
R/R • 17yr 3mo
Travel Team: ITB-MARUCCI
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
85.8 - 89.1
Velo Range
3/01/25
2103
Spin Rate (avg)
3/01/25
Changeup
80 - 83
Velo Range
3/01/25
1277
Spin Rate (avg)
3/01/25
Slider
76 - 78
Velo Range
3/01/25
2536
Spin Rate (avg)
3/01/25
Positional Tools
Hitting
Hitting
Pitching
2025
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
89.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
87.5
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).
2103
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.
24.0
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).
81.6
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).
1277
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).
76.9
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).
2536
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).
Preseason All-State: Upperclass (Invite-Only)
Mar 1, 2025
Trackman - Fastball
89.1
Velocity (max)
85.8 - 89.1
Velo Range
87.5
Eff Velocity (avg)
2,329
Spin Rate (max)
2,103
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
77.8
Velocity (max)
76.3 - 77.5
Velo Range
75.8
Eff Velocity (avg)
2,664
Spin Rate (max)
2,536
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
82.5
Velocity (max)
80.5 - 82.5
Velo Range
80.6
Eff Velocity (avg)
1,384
Spin Rate (max)
1,277
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
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
89.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
87.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
81.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
77.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
81.5
Game Performance
Vizual Edge
Pitch Ai
Notes
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Uncommitted, currently ranked No. 78 in the state. 6-foot-2, 175-pounds, long and loose limbs with more room to add strength. Got the start on the mound and showed a dynamic fastball and slider that has some potential. Deceptive delivery, long-levered, drop/drive and stays in-line, arm plays up and out of the glove quickly, whippy ¾ release. Creates natural sink on the fastball and sat 85-87 mph, touching 88 mph on his best bullet, control wavered a bit but he’s building up currently after not pitching for a while. The slider showed some sweeping action and occasionally backed up on him, but looks like a potential out-pitch when he gets it low and away to righties with depth, 77-78 mph.
RHP Dean Miller (Glenbrook North, 2026) stands in an intriguing 6-foot-2, 175-pound frame with plenty of room for added strength. He’s a loose, athletic mover on the mound with a long, loose arm action out of a lower slot. His fastball sat 86-89 mph in this ‘pen with heavy arm-side action throughout. He showed feel for both his off-speed offerings, throwing his changeup with fastball intent while generating fade and downer action (avg. 11.9” HM; -9.0” IVB). Miller rounded out his three-pitch mix with a 76-78 mph slider that played with sharp, sweeping actions, while averaging a 2536 rpm spin rate. He came away a winner having made his Prep Baseball showcase debut in the process, and he’s established himself as an uncommitted arm-to-know.
Positional Profile: RHP
Body: 6-3, 180-pounds. Athletic build, skinny with room to add.
Delivery: Loose, easy mover, high leg lift with tuck and coil, extends down the mound.
Arm Action: RH. Long, loose arm action, low 3/4 slot.
FB: T89, 86-89 mph. Plays with arm-side run at times. T2329, 2103 average rpm.
SL: 76-78 mph. 10/4 shape, sharp action, can land. T2664, 2536 average rpm.
CH: 80-83 mph. Heavy fade and sink, feel for strikes. T1384, 1277 average rpm.
Uncommitted. Got the start for the Spartans and showed some intrigue from the right side. Miller is a long-limbed, fluid mover down the mound with a low ¾ release. His fastball played in the 80-83 mph range with sink, while going to a 75-76 mph breaking ball that played with some downer action to it while showing some feel to spin at 2300+ rpm. He attacked the zone throughout his start, and is a sophomore to continue to monitor going forward.