Prep Baseball Report

Peoria Summer ID: Pitching Data Dive


Kevin Cronin
Illinois & Wisconsin Data Coordinator, Area Scout

On June 18th, the Prep Baseball Illinois staff hosted the Peoria Summer ID at East Side Complex in East Peoria, Ill. Over 30 players participated in a pro-style workout, gathering unrivaled access to data through our state-of-the-art tech partners, as well as in-depth scouting analysis from our Prep Baseball Illinois staff.

Yesterday, we looked at the top measurable data performers from the event, found in our Statistical Analysis, where we broke down the stat leaders from the more traditional categories. We also released our Quick Hits from the event, highlighting some of the event's top prospects.

Now, we will take a further in-depth look at the top pitchers with the help of our tech partnerships, broken down by the categories down below:

TRACKMAN

FASTBALL

VELOCITY (MAX)

Rank Name State School Class Pos Velocity (max)
1 Madden Johnson IL Mattoon 2025 RHP 84.3 mph
2 Matthew Darling IL Westville 2026 RHP 82.6 mph
3 Colson Welgat IL Kewanee 2025 SS 82.4 mph
4 Jacob Kenney IL Mercer County High School 2025 OF 81.9 mph
5 Luke Bonnstetter IL Charleston 2025 RHP 81.8 mph

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

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Colson Welgat IL Kewanee 2025 SS 2182 rpm
2 Isaac Perez IL Washington 2026 SS 2125 rpm
3 Hayden Bates IL St. Thomas More 2027 1B 2005 rpm
4 Braden Montgomery IL Okaw Valley High School 2026 3B 1964 rpm
5 Cameron Ahart IL Peoria Heights 2025 RHP 1956 rpm

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.

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Braden Montgomery IL Okaw Valley High School 2026 3B 16.8 in
2 Jacob Kenney IL Mercer County High School 2025 OF 16.5 in
3 Carter Reiners IL Normal Community High School 2027 1B 15.9 in
4 Cameron Ahart IL Peoria Heights 2025 RHP 14.9 in
5 August Burr IL St. Bede Academy 2026 SS 14.0 in

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. IVB is also a huge part of the vertical approach angle.

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Parker Eggenberger IL Dee-Mack 2026 2B 16.6
2 Michael Roesel IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2026 3B 16.4
3 Isaac Perez IL Washington 2026 SS 15.4
4 Hayden Bates IL St. Thomas More 2027 1B 15.4
5 Carter Reiners IL Normal Community High School 2027 1B 13.5

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.”

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Madden Johnson IL Mattoon 2025 RHP 75 %
2 Jake Williams IL Tremont High School 2028 C 66 %
^ Carter Reiners IL Normal Community High School 2027 1B 66 %
3 Hayden Bates IL St. Thomas More 2027 1B 60 %

Average MLB pitchers throw 62% strikes, and better pitchers throw strikes 65% of the time, or roughly 2:1 strikes to balls.


CURVEBALL

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Colson Welgat IL Kewanee 2025 SS 2359 rpm
2 Luke Bonnstetter IL Charleston 2025 RHP 2053 rpm
3 Carter Reiners IL Normal Community High School 2027 1B 1981 rpm
4 Braden Montgomery IL Okaw Valley High School 2026 3B 1942 rpm
5 Jacob Kenney IL Mercer County High School 2025 OF 1891 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Luke Bonnstetter IL Charleston 2025 RHP -8.1 in
2 Carter Reiners IL Normal Community High School 2027 1B -7.4 in
3 Kaden Rickey IL Washington 2026 C -5.3 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 August Burr IL St. Bede Academy 2026 SS -11.9
2 Luke Bonnstetter IL Charleston 2025 RHP -10.3
3 Kaden Rickey IL Washington 2026 C -7.7

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Jacob Kenney IL Mercer County High School 2025 OF 100 %
2 Hayden Bates IL St. Thomas More 2027 1B 50 %
^ Colson Welgat IL Kewanee 2025 SS 50 %
^ August Burr IL St. Bede Academy 2026 SS 50 %
^ Luke Bonnstetter IL Charleston 2025 RHP 50 %
^ Parker Eggenberger IL Dee-Mack 2026 2B 50 %
^ Kaden Rickey IL Washington 2026 C 50 %


SLIDER

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Colson Welgat IL Kewanee 2025 SS 2103
2 Carter Reiners IL Normal Community High School 2027 1B 2077
3 Luke Bonnstetter IL Charleston 2025 RHP 1978
4 Cameron Ahart IL Peoria Heights 2025 RHP 1939
5 Madden Johnson IL Mattoon 2025 RHP 1871

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Matthew Darling IL Westville 2026 RHP -6.2 in
2 Luke Bonnstetter IL Charleston 2025 RHP -5.6 in
3 Michael Roesel IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2026 3B 4.2 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Madden Johnson IL Mattoon 2025 RHP -17.2
2 Matthew Darling IL Westville 2026 RHP -16.5
3 Michael Roesel IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2026 3B 9.4

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Colson Welgat IL Kewanee 2025 SS 100 %
2 Nate Kaufmann IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2027 LHP 75 %
3 Luke Bonnstetter IL Charleston 2025 RHP 66 %


CHANGEUP

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Isaac Perez IL Washington 2026 SS 1864 rpm
2 Cameron Ahart IL Peoria Heights 2025 RHP 1688 rpm
3 Nate Kaufmann IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2027 LHP 1650 rpm
4 Jacob Kenney IL Mercer County High School 2025 OF 1518 rpm
5 Carter Reiners IL Normal Community High School 2027 1B 1494 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Jacob Kenney IL Mercer County High School 2025 OF 12.2 in
2 Matthew Darling IL Westville 2026 RHP 12.2 in
3 Kaden Rickey IL Washington 2026 C 11.7 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Isaac Perez IL Washington 2026 SS 18.5
2 Carter Reiners IL Normal Community High School 2027 1B 18.3
3 Parker Eggenberger IL Dee-Mack 2026 2B 13.9
4 Michael Roesel IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2026 3B 13.7
5 Nate Kaufmann IL THE HIGH SCHOOL OF SAINT THOMAS MORE 2027 LHP -13.2

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Matthew Darling IL Westville 2026 RHP 100 %
2 Jacob Kenney IL Mercer County High School 2025 OF 75 %
3 Parker Eggenberger IL Dee-Mack 2026 2B 60 %

+ CLICK HERE for a look at the complete statistics from the event.

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