Salt Lake Fall ID: Pitching Data Dive
September 8, 2025
This past Saturday, the Prep Baseball Utah staff hosted the Salt Lake Fall ID at Riverton HS. The event featured players from the 2026–2029 classes and gave prospects the chance to go through a full pro-style workout. Players recorded lasered 60-yard dash times with splits, defensive work with position velocities, and batting practice tracked by TrackMan.
Each player received video footage (to be edited and added to profiles in 2–3 weeks) along with verified stats, helping them continue to build their recruiting presence. Fall ID events also serve as identifiers for future invite-only events such as the West Coast Games, Utah Top Prospect Games, Future Games, and more.
Yesterday we broke down the overall statistical analysis. Today, we’ll take a deeper dive into the pitching data.
To register for the Northern Utah Fall ID, click here.
To register for the St. George Summer ID, click here.
To request an invite to the 2025 West Coast Games, click here.
To request an invite to the Utah Fall Top Prospect Games, click here.
FASTBALL
MAX VELOCITY
Max Fastball Velocity: This metric calculates the speed of the pitch as it’s released from the pitcher’s hand.
HIGHEST AVG. SPIN RATE
Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.
HIGHEST AVG. IVB
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, and it’s also important to consider the pitch’s velocity as well as its release height when evaluating IVB measurements against each other.
HIGHEST AVG. HORIZONTAL MOVEMENT
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.”
HIGHEST STRIKE ZONE RATE%
For some context, in 2023 MLB pitchers averaged an In Zone% of around 49 percent in live game settings measured across all pitch types, according to Statcast.
CURVEBALL
HIGHEST AVG. SPIN RATE
HIGHEST AVG. IVB
HIGHEST AVG. HORIZONTAL MOVEMENT
HIGHEST STRIKE ZONE RATE%
SLIDER
HIGHEST AVG. SPIN RATE
HIGHEST AVG. IVB
HIGHEST AVG. HORIZONTAL MOVEMENT
HIGHEST STRIKE ZONE RATE%
CHANGEUP
AVG CHANGEUP SPIN RATE (RPM)
HIGHEST AVG. IVB
HIGHEST AVG. HORIZONTAL MOVEMENT
HIGHEST STRIKE ZONE RATE%
Upcoming Events
| Showcase | State | Date | Location |
| Northern Utah Fall ID | UT | 09/13 | Ridgeline High School |
| St. George Fall ID | UT | 09/20 | Dixie High School - St. George, UT |
| 2025 West Coast Super Sophomore Games (Invite-Only) | UT | 09/26 | University of Oregon / Bushnell University |
| 2025 West Coast Games | UT | 10/03 | Loyola Marymount University - Page Stadium |
| Utah Fall Top Prospect Games (Invite-Only) | UT | 11/01 | Utah Valley University |