North Austin Summer ID: Pitcher Data Dive
July 10, 2025
On Wednesday, July 2nd, the PB Texas staff traveled to Legacy Ranch High School in Liberty Hill, TX, to host the North Austin Summer ID, an open event for the class of 2026-2028.
14 players made their way to Legacy Ranch this past weekend and participated in a pro-style workout, gathering unrivaled access to data through our state-of-the-art tech partners, as well as in-depth scouting analysis from our Prep Baseball Texas staff.
We've already posted a Statistical Analysis from the event, highlighting more of the traditional statistical categories. We also highlighted some of the top positional players within this Data Dive story.
Today, we will be looking at the top measurable data performers from the event, found below.
Trackman
FASTBALL
VELOCITY (MAX)
INDUCED VERTICAL BREAK (AVG.)
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 efficiencies. 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 vertical approach angle.
HORIZONTAL MOVEMENT (AVG.)
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.”
STRIKE ZONE RATE%
Average MLB pitchers throw 62% strikes, and better pitchers throw strikes 65% of the time, or roughly 2:1 strikes to balls.
CURVEBALL
INDUCED VERTICAL BREAK (AVG.)
HORIZONTAL MOVEMENT (AVG.)
STRIKE ZONE RATE%
SLIDER
SPIN RATE (AVG.)
INDUCED VERTICAL BREAK (AVG.)
HORIZONTAL MOVEMENT (AVG.)
CHANGEUP
Spin Rate (AVG.)
INDUCED VERTICAL BREAK (AVG.)
HORIZONTAL MOVEMENT (AVG.)
+ CLICK HERE for a look at the complete statistics from the event.
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