Prep Baseball Report

SoCal Preseason All-State: Underclass TrackMan Slider Leaderboards


Matt Monk
Manager, Operations and Content

 

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LAKE ELSINORE, CALIF. Players gathered at Temescal Canyon High School on Jan. 6 for the Underclass SoCal Preseason All-State. They were put through a traditional pro workout with running, jumping, fielding, and hitting portions. Following the workout, players participated in a scout-ball-style game with pitchers facing five batters each.

Check our socials for coverage during the event.

For all the data and information on all of the players outside of the leaderboards click here.

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Data collected by TrackMan has become significantly important for high school, Juco, and 4-year players. College programs have evolved beyond radar velocity readings, looking deeper into a pitcher's ability to spin and move the ball. In addition to velocity, TrackMan provides pitchers with valuable data points such as spin rate, spin direction, horizontal movement, vertical movement, and more. Ultimately providing feedback to college coaches, MLB scouts, and the players themselves; to enhance training and also to identify prospects of interest above and beyond simple velocity readings.

At PBR California showcases and events, amateur players now have access to the same technology shared by professionals and are able to see how their pitching arsenal compares with those across the state and the country. The TrackMan Arsenal Analysis will highlight those metrics and explain the benefits behind the numbers. 

[For a complete glossary of terms and definitions, please CLICK HERE]

Max Slider Velocity

Sliders generally are faster than most other off-speed pitches with less overall movement. This metric measures the speed of the slider when it comes out of the hand.

Rank Name State School Class Pos Velocity (max)
1 Evan Alexander CA Brentwood School 2026 RHP 78.4 mph
2 Jose Ortega CA Calexico High 2026 RHP 76.6 mph
3 J. Beckett Berg CA Notre Dame 2027 RHP 74.6 mph
4 AJ LaSota CA Notre Dame 2027 RHP 74.2 mph
5 Dominic Gutierrez CA Villa Park 2026 OF 70.1 mph
6 Kaito Takahashi CA n/a 2025 RHP 70.0 mph
7 Ryosei Kawamura CA n/a 2029 SS 61.6 mph
8 Tokuichiro Kinoshita CA n/a 2028 RHP 60.4 mph

Max Slider Spin Rate

The higher the spin rate for a horizontal pitch like the slider means that it will have more movement from right to left for a right handed pitcher. This metric measures the maximum spin rate of a pitcher's slider in rpms.

Rank Name State School Class Pos Spin Rate (max)
1 Evan Alexander CA Brentwood School 2026 RHP 2866 rpm
2 J. Beckett Berg CA Notre Dame 2027 RHP 2682 rpm
3 AJ LaSota CA Notre Dame 2027 RHP 2545 rpm
4 Jose Ortega CA Calexico High 2026 RHP 2040 rpm
5 Tokuichiro Kinoshita CA n/a 2028 RHP 1932 rpm
6 Ryosei Kawamura CA n/a 2029 SS 1253 rpm
7 Kaito Takahashi CA n/a 2025 RHP 1014 rpm

Max Slider Horizontal Movement (HM)

Rank Name State School Class Pos HM (max)
1 Evan Alexander CA Brentwood School 2026 RHP -19.2 in
2 Jose Ortega CA Calexico High 2026 RHP -17.1 in
3 AJ LaSota CA Notre Dame 2027 RHP -16.1 in
4 J. Beckett Berg CA Notre Dame 2027 RHP -12.9 in
5 Kaito Takahashi CA n/a 2025 RHP 9.4 in
6 Tokuichiro Kinoshita CA n/a 2028 RHP -7.3 in
7 Ryosei Kawamura CA n/a 2029 SS 5.9 in
8 Dominic Gutierrez CA Villa Park 2026 OF 2.6 in

UPCOMING EVENTS

Showcase State  Date  Location
NorCal Preseason All-State (Invite-Only) CA 01/27 Mission College - Santa Clara, CA

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