Prep Baseball Report

SoCal Uncommitted Games: Pitcher Data Dive


By: Gavin Smith
Manager, Content & Operations

On Sunday, October 12th, the Prep Baseball California team hosted the SoCal Uncommitted Games at Cypress College in Cypress, Cal. This was an open event for high school classes (2026-2027), and gave our staff an ample look at the area's top prospects.

Over 40 players made their way to Cypress College and 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 California staff.

Today, we will be looking at the top measurable data performers from the event, found below.

Trackman

FASTBALL

VELOCITY (MAX)

Rank Name State School Class Pos Velocity (max)
1 Zander Friedman CA de Toledo 2027 RHP 88.4 mph
2 Hudson December CA El Camino Real Charter High 2027 RHP 87.2 mph
3 Grant Thomas CA Rancho Cucamonga High 2027 1B 86.7 mph
4 Paxton Czubek CA South Hills 2027 OF 85.6 mph
5 Gabriel Casillas CA Venice Senior High 2027 RHP 83.4 mph

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Gabriel Casillas CA Venice Senior High 2027 RHP 2224 rpm
2 Eric Tani CA Harvard-Westlake 2027 SS 2220 rpm
3 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 2206 rpm
4 Grant Thomas CA Rancho Cucamonga High 2027 1B 2068 rpm
5 Zander Friedman CA de Toledo 2027 RHP 2051 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 Eric Tani CA Harvard-Westlake 2027 SS 18.1 in
2 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 17.9 in
3 Grant Thomas CA Rancho Cucamonga High 2027 1B 17.0 in
4 Kane Clark CA Servite High School 2027 OF 16.4 in
5 Zander Friedman CA de Toledo 2027 RHP 16.1 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 Elsa Becher CA Helix 2027 2B 16.6
2 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP -15.4
3 Isaac Lulich CA Mira Costa High 2027 OF -14.3
4 Grant Thomas CA Rancho Cucamonga High 2027 1B 12.6
5 Jonas Jusay Jr CA Vista Murrieta 2026 LHP -12.5

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 Grant Thomas CA Rancho Cucamonga High 2027 1B 52 %
2 Elsa Becher CA Helix 2027 2B 50 %
3 Isaac Lulich CA Mira Costa High 2027 OF 47 %

 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 Grant Thomas CA Rancho Cucamonga High 2027 1B 2223 rpm
2 Eric Tani CA Harvard-Westlake 2027 SS 2160 rpm
3 Paxton Czubek CA South Hills 2027 OF 2110 rpm
4 Kane Clark CA Servite High School 2027 OF 2082 rpm
5 Isaac Lulich CA Mira Costa High 2027 OF 2018 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Jonas Jusay Jr CA Vista Murrieta 2026 LHP -8.5 in
2 Paxton Czubek CA South Hills 2027 OF -6.9 in
3 Eric Tani CA Harvard-Westlake 2027 SS -6.1 in
4 Kane Clark CA Servite High School 2027 OF -3.8 in
5 Gabriel Casillas CA Venice Senior High 2027 RHP 2.1 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Paxton Czubek CA South Hills 2027 OF -13.9
2 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 13.6
3 Eric Tani CA Harvard-Westlake 2027 SS -12.5
4 Kane Clark CA Servite High School 2027 OF 9.9
5 Baron Chirba CA Oaks Christian 2026 RHP -8.8

SLIDER

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP 2130
2 Zander Friedman CA de Toledo 2027 RHP 2022
3 Hudson December CA El Camino Real Charter High 2027 RHP 1848

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Hudson December CA El Camino Real Charter High 2027 RHP 4.9 in
2 Zander Friedman CA de Toledo 2027 RHP -1.0 in
3 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP 0.6 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Zander Friedman CA de Toledo 2027 RHP -8.1
2 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP 5.1
3 Hudson December CA El Camino Real Charter High 2027 RHP -2.7

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Zander Friedman CA de Toledo 2027 RHP 43 %
2 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP 25 %
3 Hudson December CA El Camino Real Charter High 2027 RHP 16 %

CHANGEUP

Spin Rate (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Paxton Czubek CA South Hills 2027 OF 1944 rpm
2 Eric Tani CA Harvard-Westlake 2027 SS 1862 rpm
3 Gabriel Casillas CA Venice Senior High 2027 RHP 1758 rpm
4 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 1698 rpm
5 Griffin Tagliaferri CA St. John Bosco High School 2027 LHP 1636 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Baron Chirba CA Oaks Christian 2026 RHP 15.3 in
2 Isaac Lulich CA Mira Costa High 2027 OF 10.9 in
3 Zander Friedman CA de Toledo 2027 RHP 10.9 in
4 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 10.7 in
5 Gabriel Casillas CA Venice Senior High 2027 RHP 8.5 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Paxton Czubek CA South Hills 2027 OF 20.3
2 Eric Tani CA Harvard-Westlake 2027 SS 17.7
3 Grant Thomas CA Rancho Cucamonga High 2027 1B 17.4
4 Zander Friedman CA de Toledo 2027 RHP 16.8
5 Gabriel Casillas CA Venice Senior High 2027 RHP 15.1

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Grant Thomas CA Rancho Cucamonga High 2027 1B 100 %
^ Zander Friedman CA de Toledo 2027 RHP 100 %
2 Jonas Jusay Jr CA Vista Murrieta 2026 LHP 87 %
3 Eric Tani CA Harvard-Westlake 2027 SS 66 %
4 Baron Chirba CA Oaks Christian 2026 RHP 50 %
5 Kane Clark CA Servite High School 2027 OF 42 %

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

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