@jaxlettenberger 74
Velocity (max)
3/15/26
CLASS OF 2027
LHP
OF
Jaxon
Lettenberger
St Johns Northwestern Academy (HS) • WI
5' 10" • 139.3LBS
L/L • 17yr 9mo
Travel Team: GRB-Stiks
5' 10" • 139.3LBSL/L • 17yr 9mo
Travel Team: GRB-Stiks
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
Fastball
72.1 - 73.5
Velo Range
3/15/26
1862
Spin Rate (avg)
3/15/26
Changeup
60.5 - 62.2
Velo Range
3/15/26
1146
Spin Rate (avg)
3/10/24
Curveball
57 - 61
Velo Range
6/21/24
1723
Spin Rate (avg)
3/15/26
Slider
61 - 63
Velo Range
3/15/26
1739
Spin Rate (avg)
3/15/26
76.2
Exit Velocity (max)
3/10/24
64.5
Exit Velocity (avg)
3/11/23
212
Distance (max)
3/11/23
71
Sweet Spot %
3/11/23
18.5
Hand Speed (max)
3/11/23
59.2
Bat Speed (max)
3/10/24
15
Rot. Acc (max)
3/11/23
-
Hard Hit %
8.26
60-yd
3/11/23
-
30-yd
-
10-yd
-
Run speed (max)
-
INF Velo
65
OF Velo
3/11/23
-
C Velo
-
Pop Time
Positional Tools
2024
2023
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.52
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
64.0
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.
8.9
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
8.26
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
65.0
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.
8.5
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).
76.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
63.8
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
209
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
104
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
21.8178
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).
69.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
64.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
212
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
176
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
25.9556
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.
Madison Preseason ID
Mar 10, 2024
Trackman - Hitting
76.2
Exit Velocity (max)
63.8
Exit Velocity (avg)
104
Distance (avg)
209
Distance (max)
Sweet Spot %
Fly Ball %
Ground Ball %
Madison Rising Stars ID
Mar 11, 2023
Trackman - Hitting
69.8
Exit Velocity (max)
64.5
Exit Velocity (avg)
176
Distance (avg)
212
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Hitting
2024
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
18.4
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.4
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
59.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
56.7
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.
18.5
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.5
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
55.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
54.5
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.
Madison Preseason ID
Mar 10, 2024
Blast - Hitting
18.4
Hand Speed (max)
17.4
Hand Speed (avg)
59.2
Bat Speed (max)
56.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Madison Rising Stars ID
Mar 11, 2023
Blast - Hitting
18.5
Hand Speed (max)
17.5
Hand Speed (avg)
55.2
Bat Speed (max)
54.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2026
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
73.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
72.8
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).
1862
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.
25.6
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).
59.3
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).
1723
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).
61.9
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).
1739
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).
Knuckleball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
61.4
Knuckleball
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).
68.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
66.5
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).
1312
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.
19.7
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).
51.5
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).
1602
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).
58.8
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).
1146
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).
54.0
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).
1619
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).
Knuckleball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
53.8
Knuckleball
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).
877
Knuckleball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Madison Preseason ID
Mar 15, 2026
Trackman - Fastball
73.6
Velocity (max)
72.1 - 73.5
Velo Range
70.9
Eff Velocity (avg)
1,910
Spin Rate (max)
1,862
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Curveball
60.4
Velocity (max)
58.4 - 60.2
Velo Range
56.6
Eff Velocity (avg)
1,791
Spin Rate (max)
1,723
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Slider
62.5
Velocity (max)
61.2 - 62.5
Velo Range
59.7
Eff Velocity (avg)
1,763
Spin Rate (max)
1,739
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Knuckleball
62.2
Velocity (max)
60.5 - 62.2
Velo Range
59.4
Eff Velocity (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Zone %
Madison Preseason ID
Mar 10, 2024
Trackman - Fastball
68.1
Velocity (max)
65.5 - 67.4
Velo Range
65.6
Eff Velocity (avg)
1,414
Spin Rate (max)
1,312
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
52.9
Velocity (max)
50.5 - 52.5
Velo Range
50.3
Eff Velocity (avg)
1,651
Spin Rate (max)
1,602
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
55.6
Velocity (max)
52.6 - 55.3
Velo Range
52.5
Eff Velocity (avg)
1,657
Spin Rate (max)
1,619
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
61.0
Velocity (max)
57.1 - 60.5
Velo Range
57.6
Eff Velocity (avg)
1,761
Spin Rate (max)
1,146
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Splitter
77.4
Velocity (max)
75.2 - 77.2
Velo Range
74.4
Eff Velocity (avg)
706
Spin Rate (max)
748
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Knuckleball
54.1
Velocity (max)
53.6 - 54.0
Velo Range
52.2
Eff Velocity (avg)
877
Spin Rate (max)
877
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
2026
2024
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.
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.
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.
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.
Madison Preseason ID
Mar 15, 2026
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Madison Preseason ID
Mar 10, 2024
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Pitching Velos
2026
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
74.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
59.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
62.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
68.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
66.3
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
55.7
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
58.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
54.0
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.
Vizual Edge
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.
57.85
Pitch Ai
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Physical
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.
Positional Profile: LHP/OF
Body: 5-10, 139-pounds. Athletic, well proportioned.
Delivery: Works on third base side of the mound, quick knee lift into tall/fall, coils over back leg.
Arm Action: LH. Higher 3/4 slot, full arm circle.
FB: T74, 72-73 mph. Natural arm side run, sinking action, works arm side. T1910, 1862 average rpm.
CB: 58-60 mph. Gradual break, 12/6 shape, buries. T1791, 1723 average rpm.
SL: 61-63 mph. Tight spin, short break. T1763, 1739 average rpm.
KN: 61-62 mph. Kills spin, wrinkle, true feel.
Positional Profile: LHP/OF
Body: 5-10, 139-pounds. Athletic, well proportioned.
Hit: LHH
Arm: LH.
Positional Profile: LHP/OF
Body: 5-8, 124-pounds. High waist, lean with long limbs.
Delivery: Works in-line to home, repeats it.
Arm Action: LH. Full arm loop, 3/4 slot.
FB: T68, 66-67 mph. Plays downhill through areas in the zone. T1414, 1312 average rpm.
CB: 51-52 mph. Gradual break, 11/5 shape. T1651, 1602 average rpm.
SL: 53-55 mph. 10/4 shape, with depth. T1657, 1619 average rpm.
CH: 57-60 mph. Slight cutting action, and depth. T1761, 1146 average rpm.
KN: 54-54 mph. Knuckle action with some drop.
ATH: 8.52 runner in the 60. 17.60 max vertical.
Positional Profile: LHP/OF
Body: 5-8, 124-pounds. High waist, lean with long limbs.
Hit: LHH. Upright set up, simple move to hitting position with toe tap back. Downhill path with the ability to back spin line drives through both gaps. 56.7 mph bat speed with 10 G's of rotational acceleration.
Power: 76 max exit velocity, averaged 63.8 mph. 209' max distance.
Arm: LH. OF-64 mph. 3/4 slot, full arm action.
Defense: Aggressive, one hand gather, shuffle to throw.
ATH: 8.52 runner in the 60. 17.60 max vertical.
Positional Profile: OF/1B
Body: 5-7, 105-pounds. Wiry frame, high waist, more fill coming.
Hits: LHH. Upright, slightly open, preloaded hands. Starts with hands pre-loaded, flat path to the ball, stays up the middle of the field.
Power: 70 max exit velocity, averaged 64.5 MPH. 212' max distance.
Arm: LH. OF-65 mph. Short, 3/4 slot.
Defense: One-hand gather, shuffle step crow hop, works in-line, moves well side-to-side.
Run: 8.26 runner in the 60.