On June 7, the PBR Illinois staff kicked off our summer tour with the Underclass Open, held at Triton College in River Grove, Ill. Previously touted as the Underclass Trials, this event has been a staple on our summer calendar since 2014. It routinely provides us an opportunity to check see prospects prior to the summer circuit kicking off, and this year’s event featured players from the 2024-2026 grad classes.

Last week we published Quick Hits highlighting the top prospects of the event by class. We also rolled out a Statistical Analysis pointing out the top recorded stats by category.

Now we'll continue to roll out the data we gathered from this event, starting with the analytics we have at our disposal from our TrackMan units. Below we'll look at which players had noteworthy batted ball and pitch metric data.

MAX FASTBALL & PEAK SPIN RATE

Rank	Name	State	School	Class	Pos	Max FB
1	Bryce Koch	IL	Barrington	2024	RHP	88 mph
2	Aiden Elliott	IL	Champaign Central	2025	SS	82 mph
^	Beau McBride	IL	New Trier	2024	LHP	82 mph
3	Peter Mulhern	IL	Palatine	2025	3B	81 mph
^	Jack Wilson	IL	New Trier	2024	RHP	81 mph
4	Jacob Parr	IL	Lemont	2025	OF	80 mph
^	Owen Walsh	IL	Saint Ignatius	2025	RHP	80 mph
5	Alexander Schiefer	IL	Kaneland	2024	RHP	78 mph
^	Eddie Olszta	IL	Providence Catholic	2025	SS	78 mph
^	Caleb Ochs	IL	St. Joseph-Ogden	2024	RHP	78 mph
6	Clancy Rogers	IL	Glenbrook South	2026	3B	76 mph

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)

For a complete look at each of the statistics measured at this showcase, CLICK HERE.

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