Prep Baseball Report

San Antonio Fall ID: Data Dive



TEXAS - On 10/1, we made our way to Cornerstone Christian HS for the San Antonio Fall ID. The day consisted of players running the 60, throwing from defensive positions, then taking BP. Both days were capped off with the pitchers throwing bullpens. Today, we take a closer look at the metrics top metrics with the help from our tech partners.

Position Players

SYNCRO ATHLETIC TESTING

60-YARD DASH

Rank Name State School Class Pos 60-yd
1 Nolan Amerman TX San Antonio Christian 2025 OF 6.93 s
2 Austin Shreve TX Pieper Ranch 2025 OF 6.98 s
3 Ethan Armbruster TX Westlake 2027 RHP 7.00 s
4 Roman Grametbauer TX Hutto 2025 OF 7.05 s
5 Cameron Benson TX Byron P Steele II 2025 OF 7.10 s

10-YARD SPLIT

Rank Name State School Class Pos 10-yd
1 Ethan Armbruster TX Westlake 2027 RHP 1.61 s
2 Nolan Amerman TX San Antonio Christian 2025 OF 1.64 s
3 Austin Shreve TX Pieper Ranch 2025 OF 1.67 s
4 Cameron Benson TX Byron P Steele II 2025 OF 1.72 s
^ Roman Grametbauer TX Hutto 2025 OF 1.72 s
5 Sabastian Garcia TX Johnson 2025 OF 1.73 s
^ Owen Kuhl TX Boerne Champion 2027 OF 1.73 s


TRACKMAN

EXIT VELOCITY (MAX)

Rank Name State School Class Pos Exit Velocity (max)
1 Roman Grametbauer TX Hutto 2025 OF 97.7 mph
2 Samuel Miller TX Boerne Champion 2025 C 92.8 mph
3 Austin Shreve TX Pieper Ranch 2025 OF 91.9 mph
4 Nolan Amerman TX San Antonio Christian 2025 OF 91.1 mph
5 Wyatt Yeatter TX Wimberley 2025 3B 90.2 mph
6 Caleb Hohon TX Bandera 2025 C 89.3 mph
7 Owen Kuhl TX Boerne Champion 2027 OF 88.7 mph
8 Derek Martinez TX Pieper 2025 C 88.0 mph
9 Sabastian Garcia TX Johnson 2025 OF 87.5 mph
10 Cameron Benson TX Byron P Steele II 2025 OF 87.1 mph

EXIT VELOCITY (AVG.)

Rank Name State School Class Pos Exit Velocity (avg)
1 Roman Grametbauer TX Hutto 2025 OF 88.7 mph
2 Samuel Miller TX Boerne Champion 2025 C 85.6 mph
3 Caleb Hohon TX Bandera 2025 C 84.2 mph

Exit Velocity: This metric measures the speed of the ball, measured in miles per hour, as it comes off the bat at the moment of contact.

BATTED BALL DISTANCE (MAX)

Rank Name State School Class Pos Distance (max)
1 Austin Shreve TX Pieper Ranch 2025 OF 342 ft
2 Wyatt Yeatter TX Wimberley 2025 3B 338 ft
3 Roman Grametbauer TX Hutto 2025 OF 326 ft
4 Caleb Hohon TX Bandera 2025 C 321 ft
5 Nolan Amerman TX San Antonio Christian 2025 OF 306 ft

SWEET SPOT%

Rank Name State School Class Pos Sweet Spot %
1 Caleb Hohon TX Bandera 2025 C 76 %
^ Sabastian Garcia TX Johnson 2025 OF 76 %
2 Thomas Playfair TX Davenport 2027 SS 75 %
3 Samuel Miller TX Boerne Champion 2025 C 66 %
^ Cameron Benson TX Byron P Steele II 2025 OF 66 %
^ Austin Shreve TX Pieper Ranch 2025 OF 66 %

Sweet Spot percentage: This metric is determined by how often the player produces a batted ball during the session with a launch angle between 8 to 32 degrees.


BLAST MOTION

HAND SPEED (AVG.)

Rank Name State School Class Pos Hand Speed (avg)
1 Austin Shreve TX Pieper Ranch 2025 OF 21.8 mph
2 Nolan Amerman TX San Antonio Christian 2025 OF 21.7 mph
3 Cameron Benson TX Byron P Steele II 2025 OF 21.5 mph
4 Wyatt Yeatter TX Wimberley 2025 3B 21.5 mph
5 Jacob Aguilar TX Cornerstone Christian 2026 SS 21.1 mph

Hand Speed: The observed speed as measured on the handle of the bat (measured six inches from the knob of the bat). Peak Hand Speed will occur prior to the moment of impact, very close to the commit time in the swing when the wrists unhinge.

BAT SPEED (AVG.)

Rank Name State School Class Pos Bat Speed (avg)
1 Samuel Miller TX Boerne Champion 2025 C 69.3 mph
2 Alexander (AJ) Cantu TX Harlan 2024 C 69.2 mph
3 Roman Grametbauer TX Hutto 2025 OF 67.6 mph
4 Wyatt Yeatter TX Wimberley 2025 3B 67.4 mph
5 Austin Shreve TX Pieper Ranch 2025 OF 67.3 mph

Bat Speed: The observed speed of the sweet spot of the bat at impact. The sweet spot of the bat is measured six inches from the tip of the bat.

ROTATIONAL ACCELERATION (AVG.)

Rank Name State School Class Pos Rot. Acc (avg)
1 Austin Shreve TX Pieper Ranch 2025 OF 23.2 g
2 Roman Grametbauer TX Hutto 2025 OF 18.1 g
3 Nolan Amerman TX San Antonio Christian 2025 OF 15.0 g

Body Rotation: A swing that has the appropriate relative contributions of body and bat rotations is an efficient and Powerful swing that maintains proper sequencing. An efficient baseball swing is one in which the body creates the initial movements, which is then transferred to the arms and out to the bat, thereby maximizing Bat Speed through this proximal-to-distal kinematic sequencing movement pattern.

Pitchers

FASTBALL

MAX VELOCITY (MPH)

Rank Name State School Class Pos Velocity (max)
1 Aiden Shreve TX Pieper Ranch 2026 RHP 86.3 mph
2 Ethan Armbruster TX Westlake 2027 RHP 85.2 mph
3 Jackson Melanson TX Boerne Champion 2025 RHP 82.3 mph

Max Fastball Velocity: This metric calculates the speed of the pitch as it’s released from the pitcher’s hand.

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Ethan Armbruster TX Westlake 2027 RHP 15.2 in
2 Cameron Benson TX Byron P Steele II 2025 OF 14.9 in

Induced Vertical Break: Used in short form as "IVB," this metric is most important on fastballs for creating rise and on curveballs for creating depth – it can also have some use when measuring sliders and cutters as well. Sliders tend to be closer to zero inches while cutters are generally between 5 and 15 inches. Usually fastballs and curveballs with large IVB have higher spin efficiencies as well. Sliders generally have very little (closer to zero) IVB and very low spin efficiency. You could also categorize IVB into spin rate as this is part of the “useful movement” you’re looking for. IVB is also a huge part of the vertical approach angle.

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Jackson Melanson TX Boerne Champion 2025 RHP 15.7
2 Matthew Heredia TX Liberty Christian 2028 SS 14.5
3 Reed Blumhoff TX Clemens 2025 RHP 13.0

Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”


CURVEBALL

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Jackson Melanson TX Boerne Champion 2025 RHP 2187 rpm
2 Matthew Heredia TX Liberty Christian 2028 SS 2120 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Jackson Melanson TX Boerne Champion 2025 RHP -8.2 in
2 Cameron Benson TX Byron P Steele II 2025 OF 7.0 in
3 Matthew Heredia TX Liberty Christian 2028 SS -6.8 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Ethan Armbruster TX Westlake 2027 RHP -10.6
2 Reed Blumhoff TX Clemens 2025 RHP -9.8
3 Ryder Brill TX Wagner 2025 LHP 9.2


CHANGEUP

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Jackson Melanson TX Boerne Champion 2025 RHP 17.0
2 Aiden Shreve TX Pieper Ranch 2026 RHP 13.0
3 Matthew Heredia TX Liberty Christian 2028 SS 12.1

CLICK HERE for a look at the complete statistics from the event.


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