@kolbygrinbsball 22.9
Hand Speed (max)
10/28/25
CLASS OF 2026
C
OF
Kolby
Grinsteiner
Edmond North (HS) • OK
6' 3" • 205LBS
R/R • 17yr 7mo
Travel Team: Express
6' 3" • 205LBSR/R • 17yr 7mo
Travel Team: Express
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
72.1
Bat Speed (max)
10/28/25
17
Rot. Acc (max)
10/28/25
50
Hard Hit %
10/28/25
98.1
Exit Velocity (max)
10/28/25
90.6
Exit Velocity (avg)
10/28/25
311
Distance (max)
5/27/25
57
Sweet Spot %
5/27/25
6.87
60-yd
5/27/25
3.70
30-yd
5/27/25
1.48
10-yd
5/27/25
19.7
Run speed (max)
10/28/25
-
INF Velo
82
OF Velo
10/28/25
73
C Velo
10/28/25
1.90 - 2.00
Pop Time
5/27/25
Fastball
79
Velocity (max)
5/27/25
75 - 78
Velo Range
5/27/25
1906
Spin Rate (avg)
5/27/25
Changeup
71 - 73
Velo Range
5/27/25
1383
Spin Rate (avg)
5/27/25
Curveball
67.2 - 69.3
Velo Range
5/27/25
1956
Spin Rate (avg)
5/27/25
Positional Tools
2025
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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
Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
1.90 - 2.20
Catcher Velocity
The athlete's maximum throwing velocity from the catcher position in the given event year. Measured in miles per hour (MPH).
73.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
82.0
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.
14.3
Hitting
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
98.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
84.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
311
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
186
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
18.9789
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.
OKC Fall ID
Oct 28, 2025
Trackman - Hitting
98.1
Exit Velocity (max)
90.6
Exit Velocity (avg)
99
Distance (avg)
281
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Oklahoma Express Scout Day
May 27, 2025
Trackman - Hitting
88.6
Exit Velocity (max)
79.2
Exit Velocity (avg)
260
Distance (avg)
311
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Hitting
2025
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.9
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.7
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
72.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
68.4
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.
OKC Fall ID
Oct 28, 2025
Blast - Hitting
22.9
Hand Speed (max)
21.7
Hand Speed (avg)
72.1
Bat Speed (max)
68.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
78.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.5
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).
1906
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.
24.9
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.3
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).
1956
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).
71.8
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).
1383
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).
Oklahoma Express Scout Day
May 27, 2025
Trackman - Fastball
78.6
Velocity (max)
75.2 - 77.9
Velo Range
74.3
Eff Velocity (avg)
1,950
Spin Rate (max)
1,906
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
69.3
Velocity (max)
67.2 - 69.3
Velo Range
64.6
Eff Velocity (avg)
1,961
Spin Rate (max)
1,956
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
72.6
Velocity (max)
70.6 - 72.6
Velo Range
70.2
Eff Velocity (avg)
1,440
Spin Rate (max)
1,383
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
Pitching Velos
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
79.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Game Performance
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.48
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.7
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.
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.
OKC Fall ID
Oct 28, 2025
Vald
1.61
10-yd
3.86
30-yd
6.97
60-yd
19.7
Run speed (max)
1.98
RSI (max)
26.1
Jump Height (max)
Vizual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
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Physical
2025
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.
Positional Profile: C/OF
Body: 6-3, 205-pounds. Tall athletic build with some physicality.
Hit: RHH. Crouched even setup with a wide base, weight slightly shifted to the back side, and some bat movement pre pitch. Uses a short leg lift trigger. Compact uphill path through the zone, some barrels, power present. 68.4 mph bat speed with 13 G's of rotational acceleration.
Power: 98 max exit velocity, averaged 90.6 mph. 281' max distance.
Arm: RH. C-73 mph. OF-82 mph. OF: Long stroke from a high 3/4 slot. C: Short stroke from a high 3/4 slot.
Defense: 2.09-2.20 pop times. Confident athletic actions defensively.
ATH: 6.97 runner in the 60. 1.61 and 3.86 in the 10 and 30 yard splits.