83
Velocity (max)
7/16/25
CLASS OF 2026
RHP
SS
KJ
Stronks
Holy Trinity Catholic (HS) • ON
6' 2" • 150LBS
R/R • 18yr 6mo
Travel Team: Ontario Nationals 17U
6' 2" • 150LBS
R/R • 18yr 6mo
Travel Team: Ontario Nationals 17U
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
79 - 83
Velo Range
7/16/25
2159
Spin Rate (avg)
4/07/23
Changeup
70 - 73
Velo Range
7/16/25
1586
Spin Rate (avg)
4/07/23
Curveball
64 - 67
Velo Range
7/16/25
-
Spin Rate (avg)
Slider
63 - 66
Velo Range
9/25/22
2218
Spin Rate (avg)
4/07/23
83.7
Exit Velocity (max)
9/16/23
77.3
Exit Velocity (avg)
9/16/23
266
Distance (max)
9/16/23
38
Sweet Spot %
9/25/22
20.2
Hand Speed (max)
2/18/22
56.4
Bat Speed (max)
2/18/22
10.8
Rot. Acc (max)
2/18/22
-
Hard Hit %
7.84
60-yd
9/16/23
4.35
30-yd
9/16/23
1.88
10-yd
9/16/23
17.6
Run speed (max)
9/16/23
82
INF Velo
9/16/23
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2023
2022
2019
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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).
82.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.94
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
80.0
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.
10.1
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
60.0
Hitting
2023
2022
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
83.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
266
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
110
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
5.4651
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).
80.5
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
69.2
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
227
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
118
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
12.9677
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.
2023 Ontario Nationals Scout Day
Sep 16, 2023
Trackman - Hitting
83.7
Exit Velocity (max)
77.3
Exit Velocity (avg)
110
Distance (avg)
266
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
2022 Ontario Nationals Scout Day
Sep 25, 2022
Trackman - Hitting
80.5
Exit Velocity (max)
70.5
Exit Velocity (avg)
113
Distance (avg)
190
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2022 Future Games Frenzy
Jun 29, 2022
Trackman - Hitting
77.0
Exit Velocity (max)
68.1
Exit Velocity (avg)
123
Distance (avg)
227
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2022
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
20.2
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.8
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
56.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
53.6
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.
Junior Future Game Trials (SOLD OUT)
Feb 18, 2022
Blast - Hitting
20.2
Hand Speed (max)
17.8
Hand Speed (avg)
56.4
Bat Speed (max)
53.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2023
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
79.6
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).
2148
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.
27.0
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).
69.1
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).
1574
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).
63.9
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).
2087
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).
77.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.2
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).
1894
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.
24.8
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).
67.1
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).
1290
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).
64.0
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).
2020
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).
2023 Ontario Nationals Scout Day
Sep 16, 2023
Trackman - Fastball
80.4
Velocity (max)
79.0 - 80.2
Velo Range
79.4
Eff Velocity (avg)
2,260
Spin Rate (max)
2,140
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
65.2
Velocity (max)
62.9 - 65.0
Velo Range
63.2
Eff Velocity (avg)
2,063
Spin Rate (max)
2,022
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
68.9
Velocity (max)
68.3 - 68.8
Velo Range
68.2
Eff Velocity (avg)
1,644
Spin Rate (max)
1,561
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Spring Future Games Trials
Apr 7, 2023
Trackman - Fastball
80.2
Velocity (max)
79.2 - 80.0
Velo Range
77.7
Eff Velocity (avg)
2,220
Spin Rate (max)
2,159
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
64.4
Velocity (max)
63.2 - 64.4
Velo Range
61.5
Eff Velocity (avg)
2,277
Spin Rate (max)
2,218
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
70.0
Velocity (max)
69.4 - 70.0
Velo Range
67.7
Eff Velocity (avg)
1,647
Spin Rate (max)
1,586
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2022 Ontario Nationals Scout Day
Sep 25, 2022
Trackman - Fastball
77.8
Velocity (max)
76.9 - 77.8
Velo Range
2,070
Spin Rate (max)
1,959
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
66.1
Velocity (max)
63.7 - 65.9
Velo Range
63.8
Eff Velocity (avg)
2,167
Spin Rate (max)
2,124
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
67.7
Velocity (max)
66.5 - 67.7
Velo Range
64.5
Eff Velocity (avg)
1,353
Spin Rate (max)
1,290
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2022 Future Games Frenzy
Jun 29, 2022
Trackman - Fastball
76.5
Velocity (max)
74.5 - 76.0
Velo Range
71.9
Eff Velocity (avg)
1,919
Spin Rate (max)
1,839
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
63.2
Velocity (max)
62.0 - 63.2
Velo Range
59.3
Eff Velocity (avg)
1,901
Spin Rate (max)
1,847
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
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
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.
Pitching Velos
2025
2022
2019
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)
81.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.5
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)
75.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.8
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
63.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
61.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
59.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
51.0
Game Performance
2023
2022
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.88
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.35
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.84
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.
2022 Ontario Nationals Scout Day
Sep 25, 2022
Swift
1.74
RSI (max)
1.74
RSI (avg)
926
Jump Power (max)
21.7
Jump Height (max)
21.3
Jump Height (avg)
2022 Future Games Frenzy
Jun 29, 2022
Swift
1.50
RSI (max)
1.50
RSI (avg)
963
Jump Power (max)
22.4
Jump Height (max)
22.3
Jump Height (avg)
Vizual Edge
Pitch Ai
Notes
News
- Ontario Nationals Scout Day: Statistical Analysis - Sep 16, 2023
- Ontario Nationals Scout Day: Statistical Analysis - Sep 28, 2022
- Ontario Nationals Scout Day: TrackMan Files (Pitching) - Sep 27, 2022
- Ontario Nationals Scout Day: Quick Hits - Sep 27, 2022
- Results From 2022 Future Games Frenzy - Jul 1, 2022
- Jr. Future Games Trials: Top Performers - Feb 25, 2022
- Jr. Future Games Trials: Quick Hits - Feb 23, 2022
- Results From 2022 Junior Future Games - Feb 21, 2022
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2026 RHP/SS KJ Stronks jumped to our staff at the Jr Future Games Trials in February with his actions on the infield and he was no doubt one of the top underclassmen again. Stronks started his day with a strong showing on the infield where his actions, footwork and arm strength set him apart. The arm translates to the mound where he sat 76-77 with the fastball and worked with a sharp slider that had high spin for his age, along with 13.9 inches of vertical break. Still young with lots of development to come but the 6-foot-1, 145-pound prospect has lots to like on the mound.
Stronks, 6-foot-1, 135-pounds, impressed as a 2-way talent at the JFG Trials. Defensively, he is a slick-fielder with soft hands with athletic actions in the field. He was sure handed, and finished with a 71 INF velo. At the dish, Stronks showed bat on ball ability and kept his bat on plane throughout his swing. On the mound, Stronks attacked the zone with all 3 pitches. The long, lengthy RHP topped at 77 mph with his fastball, spun his curveball in at 62-64 mph, and had some nice fade on his 64-66 mph changeup. Stronks is a very intriguing 2025 grad prospect.