82.3
Velocity (max)
2/18/24
CLASS OF 2027
RHP
1B
Jayden
Kieler
Leo (HS) • IN
6' 2" • 187LBS
R/R • 15yr 7mo
Travel Team: OPS
6' 2" • 187LBS
R/R • 15yr 7mo
Travel Team: OPS
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
79 - 81
Velo Range
2/18/24
1847
Spin Rate (avg)
6/11/24
Changeup
75 - 77
Velo Range
2/18/24
1522
Spin Rate (avg)
2/18/24
Curveball
72.6 - 74.2
Velo Range
2/18/24
2118
Spin Rate (avg)
2/18/24
Slider
61.4 - 65.3
Velo Range
6/11/24
1978
Spin Rate (avg)
6/11/24
89.9
Exit Velocity (max)
6/11/24
81.4
Exit Velocity (avg)
6/11/24
306
Distance (max)
6/11/24
33
Sweet Spot %
6/11/24
21.1
Hand Speed (max)
6/11/24
71
Bat Speed (max)
6/11/24
11
Rot. Acc (max)
6/11/24
-
Hard Hit %
7.71
60
6/11/24
-
30-yd
-
10-yd
-
Run speed (max)
76
INF Velo
6/11/24
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
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)
7.71
Infield Velocity
The athlete's maximum throwing velocity from an infield 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.
11.7
Hitting
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
89.9
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
81.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
306
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
225
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
30.6
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.
Top Prospect Games: Underclass (Invite Only)
Jun 11, 2024
Trackman - Hitting
89.9
Exit Velocity (max)
81.4
Exit Velocity (avg)
225
Distance (avg)
306
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2024
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.
19.4
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
71.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
67.7
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.
Top Prospect Games: Underclass (Invite Only)
Jun 11, 2024
Blast - Hitting
21.1
Hand Speed (max)
19.4
Hand Speed (avg)
71.0
Bat Speed (max)
67.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.3
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
77.0
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).
1818
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.
23.6
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).
73.4
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).
2118
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).
75.7
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).
1522
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).
63.4
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).
1978
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).
Top Prospect Games: Underclass (Invite Only)
Jun 11, 2024
Trackman - Fastball
78.7
Velocity (max)
74.2 - 77.7
Velo Range
75.2
Eff Velocity (avg)
1,970
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 %
Spin Efficiency % (avg)
Trackman - Slider
65.6
Velocity (max)
61.4 - 65.3
Velo Range
62.4
Eff Velocity (avg)
2,035
Spin Rate (max)
1,978
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Northeast Indiana Preseason ID
Feb 18, 2024
Trackman - Fastball
82.3
Velocity (max)
79.2 - 80.9
Velo Range
79.8
Eff Velocity (avg)
1,937
Spin Rate (max)
1,732
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
74.4
Velocity (max)
72.6 - 74.2
Velo Range
72.5
Eff Velocity (avg)
2,176
Spin Rate (max)
2,118
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
76.9
Velocity (max)
74.8 - 76.6
Velo Range
74.9
Eff Velocity (avg)
1,636
Spin Rate (max)
1,522
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
2024
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
2024
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)
77.7
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
63.0
Game Performance
Visual Edge
Pitch Ai
Notes
Comments
2/22/24
I like the upside that '27 RHP Jayden Kieler (Leo) showed during his bullpen session. A big-bodied, 6-foot-3, 205 pounder that will mature into more strength to improve his overall body composition - Kieler was up to 82 mph on the fastball with plenty left in the tank. The arm works clean with a more compact circle to a 3/4 release point, and he was able to get in the zone with all three of his offerings. Kieler showed a slurvey breaking ball at 72-74 mph, but I liked his fading, 75-77 mph changeup as his best off-speed pitch. The front leg swings open at landing causing a bit of inconsistency, however this is a small mechanical adjustment that is easily fixable and should clean up his overall command and improve his velocity. Kieler shows shades of a younger Jack Grunkemeyer, a current SR signed to Northwestern University, and established himself as a '27 follow after his performance this weekend.
Draft Reports
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