@JacksonKolb08 89
Velocity (max)
6/26/25
CLASS OF 2027
RHP
SS
Jackson
Kolb
White Bear North Campus Senior (HS) • MN
5' 10" • 176LBS
R/R • 16yr 11mo
Travel Team: MN Blizzard Blue
5' 10" • 176LBS
R/R • 16yr 11mo
Travel Team: MN Blizzard Blue
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
88 - 89
Velo Range
3/15/25
2405
Spin Rate (avg)
7/09/25
Changeup
81 - 82
Velo Range
6/26/25
2356
Spin Rate (avg)
3/15/25
Curveball
71.7 - 78.5
Velo Range
7/09/25
2512
Spin Rate (avg)
7/09/25
Slider
80.5 - 81.4
Velo Range
7/09/25
2483
Spin Rate (avg)
7/09/25
89.7
Exit Velocity (max)
7/09/25
81.7
Exit Velocity (avg)
7/09/25
335
Distance (max)
7/09/25
57
Sweet Spot %
10/08/23
25.3
Hand Speed (max)
3/15/25
73.6
Bat Speed (max)
3/15/25
25.1
Rot. Acc (max)
3/15/25
-
Hard Hit %
7.50
60-yd
3/15/25
4.07
30-yd
3/15/25
1.72
10-yd
3/15/25
17.9
Run speed (max)
3/15/25
88
INF Velo
3/15/25
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2025
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).
88.0
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
75.0
Hitting
2025
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
89.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
79.0
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
335
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
171
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
15.9426
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.
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
81.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
71.1
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
252
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
179
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
24.9065
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.
MN Summer ID- Minnetonka
Jul 9, 2025
Trackman - Hitting
89.7
Exit Velocity (max)
81.7
Exit Velocity (avg)
206
Distance (avg)
335
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
MN Preseason All-State (Invite Only)
Mar 15, 2025
Trackman - Hitting
85.4
Exit Velocity (max)
76.2
Exit Velocity (avg)
135
Distance (avg)
300
Distance (max)
Sweet Spot %
Fly Ball %
Ground Ball %
PBR MN Scout Day- MN Blizzard
Oct 8, 2023
Trackman - Hitting
81.2
Exit Velocity (max)
71.1
Exit Velocity (avg)
179
Distance (avg)
252
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
25.3
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
23.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
73.6
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
70.3
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.
MN Preseason All-State (Invite Only)
Mar 15, 2025
Blast - Hitting
25.3
Hand Speed (max)
23.9
Hand Speed (avg)
73.6
Bat Speed (max)
70.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
88.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
87.8
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).
2323
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).
73.0
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).
2495
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).
78.0
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).
2220
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).
80.1
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).
2464
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.6
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).
2099
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.
26.0
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
63.6
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).
2319
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).
71.2
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).
1956
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).
62.8
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).
2115
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).
MN Summer ID- Minnetonka
Jul 9, 2025
Trackman - Fastball
88.4
Velocity (max)
86.5 - 87.9
Velo Range
85.2
Eff Velocity (avg)
2,441
Spin Rate (max)
2,405
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
80.3
Velocity (max)
71.7 - 78.5
Velo Range
72.7
Eff Velocity (avg)
2,713
Spin Rate (max)
2,512
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
81.4
Velocity (max)
80.5 - 81.4
Velo Range
78.5
Eff Velocity (avg)
2,493
Spin Rate (max)
2,483
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
79.5
Velocity (max)
79.1 - 79.5
Velo Range
77.1
Eff Velocity (avg)
2,086
Spin Rate (max)
2,050
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
MN Preseason All-State (Invite Only)
Mar 15, 2025
Trackman - Fastball
88.9
Velocity (max)
87.7 - 88.9
Velo Range
87.6
Eff Velocity (avg)
2,313
Spin Rate (max)
2,264
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
71.5
Velocity (max)
70.4 - 71.5
Velo Range
69.3
Eff Velocity (avg)
2,516
Spin Rate (max)
2,471
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
79.5
Velocity (max)
78.8 - 79.5
Velo Range
78.2
Eff Velocity (avg)
2,406
Spin Rate (max)
2,406
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
77.8
Velocity (max)
76.1 - 77.7
Velo Range
75.6
Eff Velocity (avg)
2,419
Spin Rate (max)
2,356
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
PBR MN Scout Day- MN Blizzard
Oct 8, 2023
Trackman - Fastball
81.4
Velocity (max)
80.0 - 81.2
Velo Range
82.0
Eff Velocity (avg)
2,175
Spin Rate (max)
2,099
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
64.2
Velocity (max)
62.9 - 64.2
Velo Range
63.7
Eff Velocity (avg)
2,336
Spin Rate (max)
2,319
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
63.1
Velocity (max)
62.5 - 63.1
Velo Range
63.4
Eff Velocity (avg)
2,164
Spin Rate (max)
2,115
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
71.3
Velocity (max)
71.2 - 71.3
Velo Range
72.2
Eff Velocity (avg)
1,986
Spin Rate (max)
1,956
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
2025
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
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
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)
87.2
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.3
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
80.2
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.0
Game Performance
2023
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.79
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.31
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.92
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.72
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.07
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.5
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.
MN Preseason All-State (Invite Only)
Mar 15, 2025
Vald
1.72
10-yd
4.07
30-yd
7.50
60-yd
17.9
Run speed (max)
1.78
RSI (max)
18.1
Jump Height (max)
Vizual Edge
Pitch Ai
Notes
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Comments
Draft Reports
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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: SS/RHP
Body: 5-10, 176-pounds.
Delivery: Closed off start, standard leg lift, drops and fast move down slope, lands inline.
Arm Action: RH. Quick arm action, elbow drives back, seperation at footstrike, achieves horizontal elbow, high 3/4 slot.
FB: T89, 88-89 mph. T2313, 2264 average rpm.
CB: 70-71 mph. T2516, 2471 average rpm.
SL: 79-80 mph. T2406, 2406 average rpm.
CH: 76-78 mph. T2419, 2356 average rpm.
ATH: 7.50 runner in the 60. 1.72 and 4.07 in the 10 and 30 yard splits. 18.10 max vertical.
Positional Profile: SS/RHP
Body: 5-10, 176-pounds.
Hit: RHH. Slightly open, wide base Body load back, hands work back and create length, barrel works aggressive down on contact, mid/pull approach, showed hand speed, inconsistent barrel 70.3 mph bat speed with 20 G's of rotational acceleration.
Power: 85 max exit velocity, averaged 76.2 mph. 300' max distance.
Arm: RH. INF-88 mph.
Defense: Feet work around the ball, short steps, plays continuous, good shuffle to release, average hands
ATH: 7.50 runner in the 60. 1.72 and 4.07 in the 10 and 30 yard splits. 18.10 max vertical.