Prep Baseball Report

Aurora Preseason: Pitcher Data Dive


By: Gavin Smith
Illinois Scouting Staff

On Feb. 4, the PBR Illinois staff hosted the Aurora Preseason ID at Aurora Sports Dome in Aurora, Ill. This event featured over 60 prospects and allowed our staff the opportunity to get an in-depth look at the players in attendance.

Tuesday, we published our Quick Hits from the event. Earlierwe broke down the top measurable data performers from the event with our Statistical AnalysisToday, 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 Carter Schaffner IL Yorkville 2025 RHP 88.6 mph
2 Jimmy Anderson IL Joliet West 2024 SS 85.6 mph
3 Joey Guiliano IL Plainfield North 2024 SS 84.7 mph
4 Cole Harris IL Providence Catholic 2025 RHP 84.6 mph
5 Connar Temple IL Batavia 2025 RHP 83.8 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 Patrick Dillow IL Wheaton North 2024 LHP 2326 rpm
2 Carter Schaffner IL Yorkville 2025 RHP 2266 rpm
3 Joey Guiliano IL Plainfield North 2024 SS 2209 rpm
4 Seth Gilliland IL Waubonsie Valley High School 2025 LHP 2165 rpm
5 Jimmy Anderson IL Joliet West 2024 SS 2135 rpm
6 Jacob Cronshaw IL Yorkville 2024 SS 2119 rpm
7 Christian Arenibar IL St. Laurence 2024 SS 2101 rpm
8 Danny DiMartino IL Plainfield North 2024 OF 2086 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 Cayden Lohrey IL Aurora Central Catholic 2025 LHP 19.7 in
2 Charlie Albertson IL Yorkville 2024 RHP 17.6 in
3 Owen Roberts IL Waubonsie Valley 2025 SS 17.4 in
4 Jacob Perry IL York 2025 RHP 17.3 in
5 Danny DiMartino IL Plainfield North 2024 OF 16.5 in
6 Jimmy Anderson IL Joliet West 2024 SS 16.3 in
7 Tommy Georgelos IL Lyons Township 2026 OF 16.2 in
8 Cole Harris IL Providence Catholic 2025 RHP 15.9 in
9 Grant Holzwarth IL Hampshire 2024 RHP 15.9 in
10 Kyle Menelli IL Plainfield East 2026 3B 15.8 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 Tyler Lamb IL Plainfield North 2024 LHP -18.1
2 Daniel Cutting IL Carmel Catholic 2025 RHP 16.2
3 Adam Bovinett IL Collinsville 2025 3B 15.8
4 Robert Zaborowski IL Barrington 2024 LHP -15.7
5 Elijah Steinbach IL Waubonsie Valley 2025 RHP 15.5

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 Mason LaVigne IL Plainfield East 2024 RHP 100 %
2 Patrick Dillow IL Wheaton North 2024 LHP 85 %
3 Johnny OBrien IL Fremd 2026 LHP 83 %
4 Daniel Cutting IL Carmel Catholic 2025 RHP 80 %
5 Robert Zaborowski IL Barrington 2024 LHP 66 %
^ Owen Roberts IL Waubonsie Valley 2025 SS 66 %
^ Danny Paige IL Plainfield North 2025 1B 66 %
6 Carter Schaffner IL Yorkville 2025 RHP 62 %
7 Cayden Lohrey IL Aurora Central Catholic 2025 LHP 60 %

 


 

CURVEBALL

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Johnny OBrien IL Fremd 2026 LHP 2422 rpm
2 Joey Guiliano IL Plainfield North 2024 SS 2334 rpm
3 Carter Schaffner IL Yorkville 2025 RHP 2197 rpm
4 Jimmy Anderson IL Joliet West 2024 SS 2122 rpm
5 Owen Roberts IL Waubonsie Valley 2025 SS 2096 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Dylan Baker IL Oswego East 2025 RHP 11.2 in
2 Elijah Steinbach IL Waubonsie Valley 2025 RHP -9.5 in
3 Charlie Albertson IL Yorkville 2024 RHP -8.5 in
4 Owen Roberts IL Waubonsie Valley 2025 SS -7.3 in
5 Johnny OBrien IL Fremd 2026 LHP -7.2 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Carter Schaffner IL Yorkville 2025 RHP -18.0
2 Johnny OBrien IL Fremd 2026 LHP 17.6
3 Kolten Schmoll-Burton IL Geneseo 2025 RHP -15.8
4 Trent Bastas IL Joliet Catholic Academy 2026 RHP -14.1
5 Joey Guiliano IL Plainfield North 2024 SS -13.9

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Bryce Lee IL Morris Community High School 2026 3B 100 %
2 Owen Roberts IL Waubonsie Valley 2025 SS 83 %
3 Jacob Cronshaw IL Yorkville 2024 SS 80 %
4 Christian Arenibar IL St. Laurence 2024 SS 75 %
5 Riley Roberts IL Waubonsie Valley 2024 RHP 66 %
^ Jimmy Anderson IL Joliet West 2024 SS 66 %
^ Sean Cabaj IL Downers Grove North 2025 1B 66 %
6 Carter Schaffner IL Yorkville 2025 RHP 60 %
^ Charlie Albertson IL Yorkville 2024 RHP 60 %
^ Seth Gilliland IL Waubonsie Valley High School 2025 LHP 60 %

 


 

SLIDER

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Robert Zaborowski IL Barrington 2024 LHP 2387
2 Patrick Dillow IL Wheaton North 2024 LHP 2332
3 Daniel Cutting IL Carmel Catholic 2025 RHP 2121
4 Justin Lange IL Oswego East 2024 LHP 2062
5 Connar Temple IL Batavia 2025 RHP 2052

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Dylan Baker IL Oswego East 2025 RHP 11.2 in
2 Elijah Steinbach IL Waubonsie Valley 2025 RHP -9.5 in
3 Charlie Albertson IL Yorkville 2024 RHP -8.5 in
4 Owen Roberts IL Waubonsie Valley 2025 SS -7.3 in
5 Johnny OBrien IL Fremd 2026 LHP -7.2 in

 

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Carter Schaffner IL Yorkville 2025 RHP -18.0
2 Johnny OBrien IL Fremd 2026 LHP 17.6
3 Kolten Schmoll-Burton IL Geneseo 2025 RHP -15.8
4 Trent Bastas IL Joliet Catholic Academy 2026 RHP -14.1
5 Joey Guiliano IL Plainfield North 2024 SS -13.9

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Connar Temple IL Batavia 2025 RHP 60 %
^ Christian Arenibar IL St. Laurence 2024 SS 60 %
2 Kolten Schmoll-Burton IL Geneseo 2025 RHP 50 %
3 Bryce Lee IL Morris Community High School 2026 3B 40 %
^ Justin Lange IL Oswego East 2024 LHP 40 %
^ Daniel Cutting IL Carmel Catholic 2025 RHP 40 %
^ Patrick Dillow IL Wheaton North 2024 LHP 40 %

 


 

CHANGEUP

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Grant Holzwarth IL Hampshire 2024 RHP 17.0
2 Bryce Lee IL Morris Community High School 2026 3B 15.3
3 Elijah Steinbach IL Waubonsie Valley 2025 RHP 14.7
4 Connar Temple IL Batavia 2025 RHP 14.4
5 Cole Harris IL Providence Catholic 2025 RHP 14.3

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Connar Temple IL Batavia 2025 RHP 60 %
^ Danny Paige IL Plainfield North 2025 1B 60 %
^ Robert Zaborowski IL Barrington 2024 LHP 60 %
^ Riley Roberts IL Waubonsie Valley 2024 RHP 60 %
2 Owen Roberts IL Waubonsie Valley 2025 SS 50 %
^ Tyler Lamb IL Plainfield North 2024 LHP 50 %
3 Danny DiMartino IL Plainfield North 2024 OF 40 %
^ Dylan Baker IL Oswego East 2025 RHP 40 %

 


 

PROPLAY AI

ARM SPEED (AVG.)

Rank Name State School Class Pos Arm Speed (avg)
1 Carter Schaffner IL Yorkville 2025 RHP 29 m/s
2 Justin Garcia Hernandez IL St. Patrick 2025 3B 28 m/s
3 Elijah Steinbach IL Waubonsie Valley 2025 RHP 27 m/s
4 Trent Bastas IL Joliet Catholic Academy 2026 RHP 26 m/s
^ Adam Bovinett IL Collinsville 2025 3B 26 m/s

Measuring arm speed helps identify the athletes who both generate velocity now and have the potential to generate more in the future. A player's arm speed can help determine the pitcher's outlook for enduring prolonged outings when examined in conjunction with his stride length and extension, for example. And if the player is inefficiently transferring his energy into his release, yet still measuring above-average arm speed rates, then that can signal the potential for an even brighter future, should he learn how to become a more efficient mover.

HIP-TO-SHOULDER SEPARATION (AVG.)

Rank Name State School Class Pos Hip Shoulder Seperation (avg)
1 Joey Guiliano IL Plainfield North 2024 SS -31 degrees
2 Justin Garcia Hernandez IL St. Patrick 2025 3B 17 degrees
3 Mason LaVigne IL Plainfield East 2024 RHP 20 degrees
4 Sean Cabaj IL Downers Grove North 2025 1B 23 degrees

Hip-to-shoulder separation is a critical moment that takes place in a pitcher's delivery, and this measurement indicates the degrees of separation between the pelvis and the trunk at the point in time just before the player's lead leg strikes the ground. It is one of the most noteworthy indicators of determining a player's ability to reach high throwing velocity in an efficient way that can lead to less injury risk long-term.

DECEPTION (AVG.)

Rank Name State School Class Pos Deception (avg)
1 Cole Harris IL Providence Catholic 2025 RHP 123 ms
2 Sean Cabaj IL Downers Grove North 2025 1B 121 ms
^ Cayden Lohrey IL Aurora Central Catholic 2025 LHP 121 ms
3 Grant Holzwarth IL Hampshire 2024 RHP 112 ms
4 Adam Bovinett IL Collinsville 2025 3B 108 ms
5 Joey Guiliano IL Plainfield North 2024 SS 100 ms

According to ProPlayAI, the deception metric represents the amount of time, in units of milliseconds, a hitter would be able to see a ball from behind the pitcher’s body. Of course, throwing with higher velocities, better tunnelling, and taking advantage of seam shifted wake could also take advantage of these factors.

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

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