88
Velocity (max)
3/22/25
CLASS OF 2027
LHP
OF
Kingston
Grisolono
Kewaskum (HS) • WI
6' 0" • 190.7LBS
L/L • 16yr
Travel Team: PTA
6' 0" • 190.7LBSL/L • 16yr
Travel Team: PTA
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
85 - 88
Velo Range
3/22/25
1956
Spin Rate (avg)
3/16/24
Changeup
78.7 - 79.4
Velo Range
3/22/25
1699
Spin Rate (avg)
3/16/24
Curveball
69 - 71
Velo Range
3/22/25
2163
Spin Rate (avg)
3/16/24
Slider
70.9 - 73.4
Velo Range
3/22/25
2065
Spin Rate (avg)
3/22/25
101.1
Exit Velocity (max)
3/22/25
93.3
Exit Velocity (avg)
3/22/25
358
Distance (max)
3/22/25
56
Sweet Spot %
3/16/24
22.3
Hand Speed (max)
3/22/25
74.4
Bat Speed (max)
3/16/24
13.9
Rot. Acc (max)
3/16/24
80
Hard Hit %
3/22/25
6.93
60-yd
3/22/25
3.84
30-yd
3/22/25
1.69
10-yd
3/22/25
19.9
Run speed (max)
3/22/25
-
INF Velo
92
OF Velo
3/22/25
-
C Velo
-
Pop Time
Positional Tools
2025
2024
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.93
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
92.0
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.
14.6
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.23
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
87.0
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.
12.7
Hitting
2025
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
101.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
93.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
358
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
159
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
6.8493
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).
92.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
84.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
336
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
218
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
19.2011
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.
Milwaukee Preseason ID
Mar 22, 2025
Trackman - Hitting
101.1
Exit Velocity (max)
93.3
Exit Velocity (avg)
159
Distance (avg)
358
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Milwaukee Preseason ID
Mar 16, 2024
Trackman - Hitting
92.0
Exit Velocity (max)
84.9
Exit Velocity (avg)
218
Distance (avg)
336
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.3
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
73.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
71.6
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.8
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
74.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
71.7
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.
Milwaukee Preseason ID
Mar 22, 2025
Blast - Hitting
22.3
Hand Speed (max)
21.2
Hand Speed (avg)
73.1
Bat Speed (max)
71.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Milwaukee Preseason ID
Mar 16, 2024
Blast - Hitting
22.0
Hand Speed (max)
20.8
Hand Speed (avg)
74.4
Bat Speed (max)
71.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
87.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
86.6
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).
1952
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.
22.5
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).
69.8
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).
2160
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).
79.1
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).
1411
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).
72.2
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).
2065
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).
83.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
82.5
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).
1956
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.
23.7
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).
69.0
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).
2163
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).
69.0
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).
1699
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).
Milwaukee Preseason ID
Mar 22, 2025
Trackman - Fastball
87.7
Velocity (max)
85.4 - 87.7
Velo Range
85.9
Eff Velocity (avg)
2,169
Spin Rate (max)
1,952
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
70.7
Velocity (max)
68.6 - 70.7
Velo Range
68.1
Eff Velocity (avg)
2,415
Spin Rate (max)
2,160
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
73.5
Velocity (max)
70.9 - 73.4
Velo Range
70.6
Eff Velocity (avg)
2,253
Spin Rate (max)
2,065
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
79.4
Velocity (max)
78.7 - 79.4
Velo Range
78.6
Eff Velocity (avg)
1,492
Spin Rate (max)
1,411
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Milwaukee Preseason ID
Mar 16, 2024
Trackman - Fastball
83.8
Velocity (max)
81.6 - 83.5
Velo Range
80.5
Eff Velocity (avg)
2,046
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)
Trackman - Curveball
70.4
Velocity (max)
68.0 - 70.0
Velo Range
67.1
Eff Velocity (avg)
2,250
Spin Rate (max)
2,163
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
69.5
Velocity (max)
68.5 - 69.5
Velo Range
68.1
Eff Velocity (avg)
1,761
Spin Rate (max)
1,699
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
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
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ 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.
Milwaukee Preseason ID
Mar 22, 2025
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Pitching Velos
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
88.0
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
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
70.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
82.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.0
Changeup
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
2024
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.
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.69
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.84
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.93
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vizual Edge
2025
2024
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
73.28
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
61.97
Pitch Ai
Notes
News
- Milwaukee Preseason ID: Quick Hits - Mar 28, 2025
- Milwaukee Preseason ID: Positional Data Dive - Mar 28, 2025
- Milwaukee Preseason ID: Preview Story - Mar 20, 2025
- Wisconsin Class of 2027 Rankings: Update - Dec 11, 2024
- Prep Baseball Wisconsin Best of 2024: Top Average Bat Speed - Dec 11, 2024
- Prep Baseball Wisconsin Best of 2024: Top Max Distance - Dec 6, 2024
- Prep Baseball Wisconsin Best of 2024: Top Max Exit Velocity - Dec 4, 2024
- Prep Baseball Wisconsin Best of 2024: Top Average Changeup Horizontal Movement - Dec 3, 2024
- Prep Baseball Wisconsin Best of 2024: Top Fastball Velocity - Nov 27, 2024
- Prep Baseball Wisconsin Best of 2024: Top Outfield Velocity - Nov 22, 2024
- Midwest Premier Super 15 Scout Blog: Day 1 - Jun 20, 2024
- Milwaukee Preseason ID: Quick Hits - Mar 22, 2024
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Physical
2025
2024
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.
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: OF/LHP
Body: 5-11, 174-pounds. Athletic build with good proportions.
Delivery: Methodical delivery, gets balanced at leg lift, in-line stride downhill, simple.
Arm Action: LH. Shorter and compact action, whip out front, 3/4 slot.
FB: T84, 82-83 mph. Clean hand with jump, life to the arm side. T2046, 1956 average rpm.
CB: 68-70 mph. Sharp 12/6 action with depth, feel for the zone. T2250, 2163 average rpm.
CH: 68-70 mph. Fade to the pitch, lands it. T1761, 1699 average rpm.
ATH: 7.23 runner in the 60. 28.60 max vertical.
Positional Profile: OF/LHP
Body: 5-11, 174-pounds. Athletic build with good proportions.
Hit: LHH. Stock set up, good separation on time. Flat path, short path, line drives to all fields. 71.7 mph bat speed with 10 G's of rotational acceleration.
Power: 92 max exit velocity, averaged 84.9 mph. 336' max distance.
Arm: LH. OF-87 mph. Full arm action, throws play with carry towards the target, 3/4 slot.
Defense: Glove works, moves well laterally, clean transfers, good momentum and direction towards the target through the ball.
ATH: 7.23 runner in the 60. 28.60 max vertical.
OF/LHP Kingston Grisolono (Kewaskum, 2027) already has some strength in his 5-foot-11, 173-pound frame and offered an upside look on Saturday. During his round of BP, Grisolono consistently drove the ball to all parts of the field, with his hardest ball coming off at 92 mph and also traveled 336 feet. He also teased his arm strength during the outfield defense portion of the event when he reached an 87 mph on his hardest bullet home. On the bump, he ran his fastball up to 83.8 mph from the left-side, while playing with 17 inches of vertical break, too. His upper-60s curveball played with over 16 inches of horizontal sweep and a changeup rounded off his repertoire with some heavy fade to his arm side.