Charlotte ID: Data Dive - Pitchers
June 24, 2026
On Tuesday, June 2nd, Prep Baseball North Carolina hosted the Charlotte Summer ID at UNC Charlotte's Robert & Mariam Hayes Stadium. Featuring players from the 2027-2029 grad classes from both North Carolina and South Carolina, the event provided an opportunity for athletes to update their player profiles while competing in a data-rich showcase environment designed to identify top talent across the region.
The day began with individual assessments, including height, weight, and grip strength testing, before players moved into offensive evaluations. Hitters participated in multiple rounds of batting practice with TrackMan technology capturing batted ball data and performance metrics, while BLAST Motion provided additional swing analytics. Players also had the opportunity to complete Vizual Edge testing during the offensive portion of the workout, adding another layer of player evaluation focused on visual performance and processing.
Following batting practice, players worked through defensive evaluations from their primary positions, allowing the Prep Baseball scouting staff to evaluate athletic actions, footwork, hands, arm strength, and overall defensive ability. Timed 60-yard dashes were then conducted to collect running metrics before the event concluded with controlled bullpen sessions. Pitchers threw in front of TrackMan technology while video captured each bullpen, providing detailed insight into velocity, pitch movement, spin characteristics, and overall arsenal effectiveness.
Over the coming days, Prep Baseball NC will release scouting notes, statistical leaderboards, and player reports from the Charlotte Summer ID as we break down the top performers and standout prospects from the event.
More information, including the full roster and event leaderboards, can be found here:
DATA DIVE : PITCHERS - CHARLOTTE SUMMER ID
FASTBALL
MAX FASTBALL 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.
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.”
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
SLIDER
HIGHEST AVG. SPIN RATE
HIGHEST AVG. IVB
HIGHEST AVG. HORIZONTAL MOVEMENT
CHANGEUP
HIGHEST AVG. HORIZONTAL MOVEMENT
HIGHEST AVG. IVB
HIGHEST STRIKE ZONE RATE%
+ Click here to view the event statistics in its entirety.
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