Prep Baseball Report

PBR Preseason ProCase: Pitcher Data Dive


Kevin Cronin
Tech Analyst, Area Scout

On Feb. 1, the PBR Illinois staff hosted the PBR Preseason ProCase at Rhino Sports Academy in Shorewood, Ill. This event featured 22 prospects, most of whom are Illinois natives, and allowed it our staff as well as the MLB scouts in attendance the opportunity to get an in-depth look at the players in attendance.

 Friday, we published our Scouting Reports from the positional players from the event. Monday, we broke down the top measurable data performers from the event with our Statistical Analysis. Today, 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 Dimitrios Bourmas IL Harvard 2023 RHP 93.0 mph
2 Jarron Thompson IL Waubonsie Valley 2023 RHP 91.0 mph
3 Maksymilian Pierga IL Barrington 2023 RHP 90.6 mph
4 Cal Sefcik IL Marist 2023 SS 90.4 mph
5 Hank Liss IL Evanston 2023 RHP 90.3 mph
6 Zachary Kwasny IL Lincoln-Way East 2023 RHP 90.2 mph
7 Ryan Anderson IL Minooka 2024 RHP 90.1 mph
8 Colin Miller IL Hampshire 2023 RHP 89.5 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 Dimitrios Bourmas IL Harvard 2023 RHP 2538 rpm
2 Ryan Anderson IL Minooka 2024 RHP 2315 rpm
3 Zachary Kwasny IL Lincoln-Way East 2023 RHP 2253 rpm
4 Hank Liss IL Evanston 2023 RHP 2169 rpm
5 Colin Miller IL Hampshire 2023 RHP 2159 rpm
6 Jarron Thompson IL Waubonsie Valley 2023 RHP 2097 rpm
7 Cal Sefcik IL Marist 2023 SS 2080 rpm
8 Maksymilian Pierga IL Barrington 2023 RHP 1986 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 Colin Miller IL Hampshire 2023 RHP 14.9 in
2 Maksymilian Pierga IL Barrington 2023 RHP 14.2 in
3 Hank Liss IL Evanston 2023 RHP 13.6 in
4 Cal Sefcik IL Marist 2023 SS 12.3 in
5 Zachary Kwasny IL Lincoln-Way East 2023 RHP 12.2 in
6 Dimitrios Bourmas IL Harvard 2023 RHP 11.9 in
7 Ryan Anderson IL Minooka 2024 RHP 11.1 in
8 Jarron Thompson IL Waubonsie Valley 2023 RHP 10.3 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 efficiencies. 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 vertical approach angle.

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Dimitrios Bourmas IL Harvard 2023 RHP 16.1
2 Jarron Thompson IL Waubonsie Valley 2023 RHP 15.7
3 Colin Miller IL Hampshire 2023 RHP 14.7
4 Ryan Anderson IL Minooka 2024 RHP 7.8
5 Hank Liss IL Evanston 2023 RHP 6.2
6 Maksymilian Pierga IL Barrington 2023 RHP 5.6
7 Zachary Kwasny IL Lincoln-Way East 2023 RHP 5.2
8 Cal Sefcik IL Marist 2023 SS 1.7

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 Zachary Kwasny IL Lincoln-Way East 2023 RHP 85 %
2 Colin Miller IL Hampshire 2023 RHP 71 %
3 Maksymilian Pierga IL Barrington 2023 RHP 50 %
^ Ryan Anderson IL Minooka 2024 RHP 50 %


CURVEBALL

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Hank Liss IL Evanston 2023 RHP 2620 rpm
2 Dimitrios Bourmas IL Harvard 2023 RHP 2508 rpm
3 Jarron Thompson IL Waubonsie Valley 2023 RHP 2139 rpm
4 Cal Sefcik IL Marist 2023 SS 2043 rpm
5 Maksymilian Pierga IL Barrington 2023 RHP 1960 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Cal Sefcik IL Marist 2023 SS -6.8 in
2 Maksymilian Pierga IL Barrington 2023 RHP -5.6 in
3 Hank Liss IL Evanston 2023 RHP -4.8 in
4 Dimitrios Bourmas IL Harvard 2023 RHP -3.4 in
5 Jarron Thompson IL Waubonsie Valley 2023 RHP 0.0 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Hank Liss IL Evanston 2023 RHP -12.9
2 Cal Sefcik IL Marist 2023 SS -11.1
3 Maksymilian Pierga IL Barrington 2023 RHP -6.5
4 Dimitrios Bourmas IL Harvard 2023 RHP -4.6
5 Jarron Thompson IL Waubonsie Valley 2023 RHP -4.5

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Cal Sefcik IL Marist 2023 SS 100 %
2 Hank Liss IL Evanston 2023 RHP 50 %
3 Jarron Thompson IL Waubonsie Valley 2023 RHP 40 %


SLIDER

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Hank Liss IL Evanston 2023 RHP 2537
2 Ryan Anderson IL Minooka 2024 RHP 2316
3 Zachary Kwasny IL Lincoln-Way East 2023 RHP 2111
4 Colin Miller IL Hampshire 2023 RHP 1908

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Zachary Kwasny IL Lincoln-Way East 2023 RHP -6.1 in
2 Ryan Anderson IL Minooka 2024 RHP 2.6 in
3 Hank Liss IL Evanston 2023 RHP -2.5 in
4 Colin Miller IL Hampshire 2023 RHP 0.7 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Ryan Anderson IL Minooka 2024 RHP -14.8
2 Zachary Kwasny IL Lincoln-Way East 2023 RHP -12.4
3 Hank Liss IL Evanston 2023 RHP -8.8
4 Colin Miller IL Hampshire 2023 RHP -7.8

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Ryan Anderson IL Minooka 2024 RHP 60 %
2 Zachary Kwasny IL Lincoln-Way East 2023 RHP 40 %


CHANGEUP

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Dimitrios Bourmas IL Harvard 2023 RHP 17.4
2 Colin Miller IL Hampshire 2023 RHP 16.9
3 Cal Sefcik IL Marist 2023 SS 15.6
4 Maksymilian Pierga IL Barrington 2023 RHP 15.0
5 Zachary Kwasny IL Lincoln-Way East 2023 RHP 14.0

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Maksymilian Pierga IL Barrington 2023 RHP 60 %
2 Dimitrios Bourmas IL Harvard 2023 RHP 25 %
^ Zachary Kwasny IL Lincoln-Way East 2023 RHP 25 %
3 Cal Sefcik IL Marist 2023 SS 20 %

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

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