23.5
Hand Speed (max)
7/25/23
CLASS OF 2028
C
RHP
Jackson
Vondersaar
Olentangy Berlin High School (HS) • OH
5' 9" • 150LBS
R/R • 14yr 11mo
Travel Team: Ohio Hit Dogs-Kerins
5' 9" • 150LBS
R/R • 14yr 11mo
Travel Team: Ohio Hit Dogs-Kerins
Rankings
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
88.1
Bat Speed (max)
2/25/24
15
Rot. Acc (max)
7/25/23
-
Hard Hit %
90.3
Exit Velocity (max)
6/12/24
81.9
Exit Velocity (avg)
2/25/24
341
Distance (max)
2/25/24
50
Sweet Spot %
2/26/23
7.22
60
6/12/24
4.23
30-yd
7/25/23
1.83
10-yd
7/25/23
17.7
Run speed (max)
7/25/23
-
INF Velo
78
OF Velo
7/18/23
76
C Velo
6/12/24
1.93 - 1.96
Pop Time
6/12/24
Fastball
82
Velocity (max)
5/10/24
79 - 82
Velo Range
5/10/24
2339
Spin Rate (avg)
6/12/24
Changeup
67 - 69
Velo Range
5/10/24
1398
Spin Rate (avg)
6/12/24
Curveball
69.4 - 72.6
Velo Range
2/25/24
2398
Spin Rate (avg)
2/25/24
Slider
68.7 - 69.6
Velo Range
2/25/24
2151
Spin Rate (avg)
2/25/24
Positional Tools
2024
2023
Sign in to view rankings 
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.22
Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
1.93 - 1.99
Catcher Velocity
The athlete's maximum throwing velocity from the catcher position in the given event year. Measured in miles per hour (MPH).
76.0
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.
12.5
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.60
Pop Time
The athlete's fastest pop time in the given event year. Measured from glove to glove, in seconds (s).
2.13 - 2.21
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).
78.0
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.
11.6
Hitting
2024
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
90.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
81.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
341
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.
16.5
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).
87.9
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
76.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
302
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
177
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
20.2
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.
2024 Ohio Future 50 (Invite Only)
Jun 12, 2024
Trackman - Hitting
90.3
Exit Velocity (max)
81.8
Exit Velocity (avg)
183
Distance (avg)
290
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2024 Central Ohio Rising Stars ID
Feb 25, 2024
Trackman - Hitting
89.9
Exit Velocity (max)
81.9
Exit Velocity (avg)
172
Distance (avg)
341
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
JFG Workout MI/OH
Jul 25, 2023
Trackman - Hitting
87.9
Exit Velocity (max)
78.1
Exit Velocity (avg)
229
Distance (avg)
302
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
PBR Junior Future Games
Jul 25, 2023
Trackman - Hitting
87.9
Exit Velocity (max)
78.1
Exit Velocity (avg)
229
Distance (avg)
302
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Ohio Junior State Games (Invite Only)
Jul 18, 2023
Trackman - Hitting
84.8
Exit Velocity (max)
75.4
Exit Velocity (avg)
166
Distance (avg)
294
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Central Ohio Rising Stars ID
Feb 26, 2023
Trackman - Hitting
82.9
Exit Velocity (max)
75.8
Exit Velocity (avg)
127
Distance (avg)
301
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2024
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.1
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.1
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
88.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
69.7
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
23.5
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.
75.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.1
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.
2024 Ohio Future 50 (Invite Only)
Jun 12, 2024
Blast - Hitting
21.1
Hand Speed (max)
20.6
Hand Speed (avg)
72.1
Bat Speed (max)
66.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 Central Ohio Rising Stars ID
Feb 25, 2024
Blast - Hitting
19.8
Hand Speed (max)
19.4
Hand Speed (avg)
88.1
Bat Speed (max)
74.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
PBR Junior Future Games
Jul 25, 2023
Blast - Hitting
23.5
Hand Speed (max)
22.3
Hand Speed (avg)
75.4
Bat Speed (max)
68.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
JFG Workout MI/OH
Jul 25, 2023
Blast - Hitting
23.5
Hand Speed (max)
22.3
Hand Speed (avg)
75.4
Bat Speed (max)
68.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Ohio Junior State Games (Invite Only)
Jul 18, 2023
Blast - Hitting
22.8
Hand Speed (max)
22.0
Hand Speed (avg)
68.6
Bat Speed (max)
66.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Central Ohio Rising Stars ID
Feb 26, 2023
Blast - Hitting
21.4
Hand Speed (max)
20.4
Hand Speed (avg)
65.7
Bat Speed (max)
62.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
79.4
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).
2292
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.
28.9
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).
71.1
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).
2295
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).
75.9
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).
1398
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).
69.1
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).
2151
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).
77.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.6
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).
2107
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.
27.5
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).
69.2
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).
2155
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
61.7
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).
1619
Cutter
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.1
Cutter
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
Cutter
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Splitter
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
64.2
Splitter
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).
1066
Splitter
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
2024 Ohio Future 50 (Invite Only)
Jun 12, 2024
Trackman - Fastball
80.3
Velocity (max)
78.2 - 80.0
Velo Range
76.3
Eff Velocity (avg)
2,525
Spin Rate (max)
2,339
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
72.3
Velocity (max)
70.1 - 72.1
Velo Range
68.0
Eff Velocity (avg)
2,439
Spin Rate (max)
2,256
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
75.9
Velocity (max)
73.1
Eff Velocity (avg)
1,398
Spin Rate (max)
1,398
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2024 Central Ohio Rising Stars ID
Feb 25, 2024
Trackman - Fastball
80.9
Velocity (max)
79.9 - 80.9
Velo Range
78.1
Eff Velocity (avg)
2,249
Spin Rate (max)
2,152
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
72.6
Velocity (max)
69.4 - 72.6
Velo Range
68.5
Eff Velocity (avg)
2,482
Spin Rate (max)
2,398
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
69.6
Velocity (max)
68.7 - 69.6
Velo Range
67.0
Eff Velocity (avg)
2,188
Spin Rate (max)
2,151
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Ohio Junior State Games (Invite Only)
Jul 18, 2023
Trackman - Fastball
77.6
Velocity (max)
76.1 - 77.2
Velo Range
74.8
Eff Velocity (avg)
2,306
Spin Rate (max)
2,190
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
71.0
Velocity (max)
67.9 - 70.5
Velo Range
66.4
Eff Velocity (avg)
2,361
Spin Rate (max)
2,155
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Cutter
77.5
Velocity (max)
74.8 - 77.3
Velo Range
73.9
Eff Velocity (avg)
2,317
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)
2023 Central Ohio Rising Stars ID
Feb 26, 2023
Trackman - Fastball
77.3
Velocity (max)
76.0 - 77.1
Velo Range
74.0
Eff Velocity (avg)
2,018
Spin Rate (max)
1,837
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
62.4
Velocity (max)
61.1 - 62.4
Velo Range
1,877
Spin Rate (max)
1,619
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Splitter
66.2
Velocity (max)
62.3 - 66.2
Velo Range
947
Spin Rate (max)
1,066
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
2024
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
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.
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
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.
Pitching Velos
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
80.5
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)
68.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.5
Game Performance
2023
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.83
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.22
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.69
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Visual Edge
Pitch Ai
Notes
News
- Results From 2024 Central Ohio Rising Stars ID - Feb 26, 2024
- 2023 Ohio Junior State Games Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Jul 20, 2023
- 2023 Ohio Junior State Games Advanced Metrics: Hitting Leaderboard - Jul 20, 2023
- 2023 Ohio Junior State Games - Quick Hits - Jul 19, 2023
- Results From 2023 Ohio Junior State Games - Jul 19, 2023
- 2023 Central Ohio Rising Stars ID - Quick Hits - Mar 6, 2023
- Results From 2023 Central Ohio Rising Stars ID - Feb 27, 2023
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Physical
2024
2023
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.
Wow type tools for the '28 class. Explosive bat speed (75mph) and upper 80s type EV. Ball looks different off the barrel, just missing leaving the yard a few times to pull side.
Jackson Vondersaar: RHP/C, (2028) Olentangy Berlin, OH. 5-foot-9, 140-pound. (66.3 mph bat speed average). (22.0 mph hand speed average). Started in a balanced stance with a controlled quick load, then used a small leg kick. Bat speed is explosive, uses a level swing plane and balanced finish. He barreled up lots of balls with a lot of loud contact. Gap to gap approach. Recorded an outfield position velocity of 78 mph. During the event, clocked a 60 time of 7.66. Projectable advanced on the mound, showing quick arm speed he had a short consistent arm action and an over-the-top arm angle. Drop-and-drive type pitcher and shows some effort. Showed strong balance point and downhill shoulders. Lands closed with recoil finish. (Max spin 2306; Avg 2190).