Peoria Summer ID: Pitching Data Dive
June 21, 2024
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 | THE HIGH SCHOOL OF SAINT THOMAS MORE | 2027 | 1B | 2005 rpm |
4 | Braden Montgomery | IL | Okaw Valley | 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 | 2026 | 3B | 16.8 in |
2 | Jacob Kenney | IL | Mercer County High School | 2025 | OF | 16.5 in |
3 | Carter Reiners | IL | Normal Community | 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 | St. Thomas More | 2026 | 3B | 16.4 |
3 | Isaac Perez | IL | Washington | 2026 | SS | 15.4 |
4 | HAYDEN BATES | IL | THE HIGH SCHOOL OF SAINT THOMAS MORE | 2027 | 1B | 15.4 |
5 | Carter Reiners | IL | Normal Community | 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 | 2027 | 1B | 66 % |
3 | HAYDEN BATES | IL | THE HIGH SCHOOL OF SAINT 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 | 2027 | 1B | 1981 rpm |
4 | Braden Montgomery | IL | Okaw Valley | 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 | 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 | THE HIGH SCHOOL OF SAINT 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 | 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 | St. 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 | St. 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 | St. 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 | St. Thomas More | 2027 | LHP | 1650 rpm |
4 | Jacob Kenney | IL | Mercer County High School | 2025 | OF | 1518 rpm |
5 | Carter Reiners | IL | Normal Community | 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 | 2027 | 1B | 18.3 |
3 | Parker Eggenberger | IL | Dee-Mack | 2026 | 2B | 13.9 |
4 | Michael Roesel | IL | St. Thomas More | 2026 | 3B | 13.7 |
5 | Nate Kaufmann | IL | St. 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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