Event is sold out

NorCal Underclass Games (Invite Only)


This event is by invite-only. Please choose the option below to proceed:

9/17/21 Update: Event is sold out


The PBR Northern California Underclass Games are coming to Islanders Field, the premier privately owned facility in the region. This showcase is designed to attract the top underclass talent from all over Northern California, allowing players to workout for college coaches and pro scouts against other top talents from the region.  The event is open to all invited players from the 2024 and 2025 classes. 

With the talent base in Northern California, we expect to see a roster full of high end talents on the field at Islanders.

Players will run through a full pre-game workout, utilizing Blast Motion and TrackMan to track ball flight and swing mechanics during the live BP, giving players feedback that will be useful in player development, as well as posting numbers that are scoured over by college coaches. During the game play, pitchers will throw to live hitters, with TrackMan gathering ball flight data out of the hand.


When: Saturday, September 18, 2021

Where: Islanders Field, Lathrop (CA)

9:00-9:15 - Position Player Check-in (ALL position players on ALL FOUR TEAMS)
10:00 - Showcase Workout
11:30 - Game 1 PO check-in for Teams 1 & 2
12:15 - Game 1 (10 innings) - Team 1 (Gray) v Team 2 (Maroon)
Team 1 pitching - Tenscher, Giusto, Sharpe, Moreda, Vertulfo, Sebastiani
Team 2 pitching - Steeves, Dringenberg, Celenza, Davis, Fernandez

We will have the batting cage available for players from teams 3 & 4 to use if they want, as game one is finishing, whenever game two players arrive.

2:45 - Game 2 Check-in for POs and position players on Teams 3 & 4 return to the field
3:45 - Game 2 (10 innings) - Team 3 (Gray) v Team 4 (Maroon) - (could start a bit earlier or later depending on how game one goes)
Team 3 pitching - Donnelly, Baker, Kramer, Kleyman, Kreizenbeck
Team 4 pitching - Pelzman, Tichy, Letke, Sechler, Huffmaster

- Infielders, Outfielders, Catchers (each will have 4 ABs in their game) Pre-Game offensive and defensive workout (60 yard dash, fielding/throwing at primary position, batting practice session), followed by a controlled scrimmage/game.

- Pitchers (each will face four batters per inning) Pitcher Only players will throw 2 controlled innings in the live scrimmage Dual Pitcher / Position players will throw 1-2 controlled innings in the live scrimmage

Unrivaled Access to Your Data

Following a Prep Baseball Report event, players will receive unrivaled access to their advanced ball-tracking and swing metrics through the TrackMan and Blast Connect apps. Additionally, to help players understand the advanced data metrics, Prep Baseball Report has partnered with Driveline, the world’s leader in data-driven player development, to generate analysis of your performance through the data sets with tips of how to identify strengths and improve deficiencies. Furthermore, key metrics will live inside your Prep Baseball Report profile to help players in their recruitment process.

Scouting, Technology and Data Analysis In One Event

Since 2005, Prep Baseball Report’s mission has been to provide the most credible scouting and event platform to help players and recruiters alike. As baseball has evolved, so have we. 

Prep Baseball Report has partnered with global leaders in the baseball technology and analysis space to deliver an unparalleled in-event and post-event experience. Now, at events across the country, players will receive actionable data from their event performance,  captured by industry-leading technologies, like TrackMan & Blast Motion, so they can elevate their game and get to the next level. Players will now receive actionable, post-event data from our industry-leading partners, including:

  • TrackMan Analytics
  • TrackMan Video Capture
  • Blast Motion

Players will also receive:

  • Edited Video of Performance Hosted in Player Profile
  • Scouting Report
  • Verified Statistics
  • Post-Event Content

>> CLICK HERE for more details on what you will receive from our tech partners. 


Our Partners

TrackMan is the global leader in ball-tracking accuracy. Following a Prep Baseball Report event, all players will get unrivaled access to their performance data in the Trackman interactive app. Players can create custom dashboards that unlock both hitting and pitching data.

Pitching Features Include:

  • Pitching data access includes: release speed, spin rate, spin axis, release height, extension, horizontal and vertical break, and location on each pitch

  • Create defined tags to label and compare pitches

  • Pin pitches together to create tunneling visualizations between different pitch types

  • Visualize each pitch location

Hitting Features Include:

  • Hitting data access includes: Exit speed, distance traveled, launch angle, launch direction, spin rate, contact depth and contact side/height for each swing.

  • Visualize plate coverage

  • Pairing of all data points on each swing

Key ball flight metrics will also live inside player profiles at PrepBaseballReport.com for the benefit of college coaches and recruiters, which will help prospects advance to the next level. TrackMan’s advanced data metrics will augment what players already receive from a PBR showcase, which includes an edited video of their performance, personalized scouting reports, verified statistics, run times and positional velocities. 

Blast is the global leader in swing analysis and used by nearly every MLB organization. Following a Prep Baseball Report event, players will receive access to BlastConnect in the Blast App, that unlocks critical insights and actionable data from their performance.

Features Include:

  • Swing Analysis and Blast Motion hitting assessment

  • Professional-level swing analytics to help players improve their hitting performance

  • Free 30-day trial to Blast Premium Services subscription

Key hitting metrics and Blast Motion Scores will also live inside player profiles at PrepBaseballReport.com for the benefit of college coaches and recruiters, which will help prospects advance to the next level.


Since its inception in 2005, Prep Baseball Report has evolved into one of the country’s biggest and most respected independent scouting services, with a singular focus of providing comprehensive coverage in every state. More than 900 colleges and pro scouts subscribe to the Prep Baseball Report services.  We take great pride in providing the most thorough and comprehensive high school baseball coverage in each state. In 2020, PBR player profiles had over 9 million views.

Refund Policy

The Prep Baseball Report California refund policy is that of a transfer nature.  Prep Baseball Report  California will permit the transfer of your payment to another Prep Baseball Report event that may be used during the following year of scheduled events. Again, registration fees are of a transfer nature and will not be refunded. If an event is cancelled due to weather, players will be issued a full credit to a future event.

Example Player


North Carolina


2018, 39 Round, Angels


Class of 2021 / RHP



Player Information

  • Graduating Class: 2018
  • Primary Position: RHP
    Secondary Position: 1B
  • High School: Franklin
    State: WI
  • Summer Team: Prospect Training Academy
  • Height: 6-5
    Weight: 190lbs
  • Bat/Throw: L/R


    • Pitching
    • Max Fastball: 93 mphFastball: 90-91 mph
    • Curveball: 78-81 mphChangeup: 82-85 mph
    • Position
    • 60 Time: 6.99 Position Velocity- Infield: 85
    • Exit Velocity: 92


Islanders Field
1051 River Islands Pkwy
Lathrop, CA

Date Title Commitments  
Team 1
# Name High School Class Pos.
Luke Giusto Justin-Siena 2024 3B
Max Harrison Sonoma Valley 2024 OF
Rohan Kasanagottu Valley Christian 2025 OF
Jacob Moreda Cardinal Newman 2024 RHP
Luke Oyler Whitney 2024 SS
Konnor Rodnick Cardinal Newman 2024 C
Nicolas Sebastiani Sonoma Valley 2024 SS
Kannon Sharpe James C. Enochs 2024 RHP
Kade Spomer Lincoln 2024 2B
Miles Tenscher Napa 2024 C
Ivver Vertulfo Berean Christian 2024 3B
Team 2
# Name High School Class Pos.
Dominic Alvarado Redwood 2024 3B
Ryder Celenza Nevada Union 2024 SS
Kalen Clemmens Casa Grande 2024 C
Carson Davis Marin Catholic 2025 SS
Ayden Dringenberg Oakmont 2025 3B
Ian Fernandez Vintage 2024 C
Dario Freschi Vintage 2025 SS
Rashad Hayes Bishop O'Dowd 2025 SS
Austin Steeves Casa Grande 2024 LHP
JT Summers Casa Grande 2024 C
Kenny Winters Lincoln 2024 SS
Team 3
# Name High School Class Pos.
Zach Baker River City 2024 RHP
Joe Donnelly Elk Grove 2024 C
Mason Ferris Woodcreek 2024 OF
Brandon Kleyman N/A 2026 RHP
Bryson Kramer River City 2024 SS
Ben Kreizenbeck Granite Bay 2025 C
Brandon Low Laguna Creek 2024 2B
Gabriel Munoz Clovis North 2025 2B
Ben Straw Granite Bay 2024 C
Jonah Williamson Sheldon 2024 3B
Team 4
# Name High School Class Pos.
Boston Costley Inderkum 2025 OF
Jacob Downing Serra 2024 SS
Gavin Huffmaster Dougherty Valley 2025 RHP
Dylan Letke Washington 2025 RHP
Ricky Maya Christian Brothers 2024 C
Andre Medina Rancho San Juan 2024 C
Harry Pelzman Junipero Serra 2024 1B
Edward Peters Aptos 2024 SS
Samuel Rivas Junipero Serra 2024 SS
Justin Sechler Serra 2024 3B
Kayden Shaw Kennedy 2024 SS
Nathan Tichy Pioneer 2024 RHP
Angel Valdez Sierra 2024 SS