Durham ID: Data Dive Pitchers
September 2, 2026
Last Chance Summer ID: Durham
On Wednesday, August 19th, Prep Baseball North Carolina hosted the Last Chance Summer ID: Durham at historic Durham Athletic Park. The event featured 30 players from the 2027-2030 grad classes, giving our scouting staff another opportunity to evaluate players while collecting updated statistics, advanced metrics, and video as the summer schedule winds down.
The day began with athletic testing powered by VALD, including the vertical jump, RSI jump, and a laser-timed 60-yard dash. The testing provided verified measurements of each player's speed and explosiveness. Players also completed Vizual Edge testing, providing additional insight into the visual skills used by hitters to track and process the game.
Offensive evaluations followed with multiple rounds of batting practice. TrackMan captured ball-flight and batted-ball data throughout BP, while BLAST Motion collected swing metrics. Players then transitioned to defensive workouts from their primary positions, giving the Prep Baseball scouting staff an opportunity to evaluate athleticism, actions, footwork, hands, arm strength, and overall defensive ability.
The event concluded with controlled bullpens for pitchers and catchers. Pitchers threw with TrackMan collecting pitch velocity, movement, spin, and additional ball-flight data, while the bullpen setting also provided an extended look at catchers and their receiving ability behind the plate.
All statistics, analytics, video, and evaluations collected throughout the day will be added to each player's Prep Baseball profile. In the coming days, Prep Baseball NC will break down the Last Chance Summer ID with statistical leaderboards, data analysis, scouting notes, and player highlights from the event.
Click Here for the full roster, stats, and analytics from the event.
DATA DIVE PITCHERS - DURHAM 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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