TN Fall Underclass Trials - TrackMan Files

October 28, 2021
PBR TN Staff

On Sunday, October 24th, the PBR Tennessee scouting staff hosted the Fall Underclass Trials at Friendship Christian in Lebanon, TN. The event featured prospects from all high school classes from around the state.

Today, we’re continuing our post-event analysis by examining the data measured by our TrackMan units. The technology is able to capture information that’s difficult to capture by the naked eye, like pitch-by-pitch metrics and batted-ball data. We’ll explain more below:

MAX FASTBALL & PEAK SPIN RATE

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

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.

AVERAGE FASTBALL 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.”

AVERAGE SLIDER SPIN RATE

AVERAGE CURVEBALL SPIN RATE

AVERAGE CHANGEUP HORIZONTAL MOVEMENT

AVERAGE EXIT VELOCITY (HITTING)

Exit Speed: Also according to TrackMan’s own website: “The speed of the ball, measured in miles per hour, as it comes off the bat at the moment of contact.”

PEAK EXIT VELOCITY (HITTING)

PEAK ESTIMATED BATTED DISTANCE (HITTING)

Find all TrackMan stats from the event HERE