Prep Baseball Report

2025 High School Previews: San Marin Mustangs


Steven Hardesty
Assistant Scouting Director

 

  

At The Yard Podcast: New Episode LIVE now!

The 2025 California high school baseball season is quickly approaching and, as usual, excitement is abound throughout the state. Players and coaches have been working in preparation for the upcoming season and, as is the case each year, there are some very talented players and teams across California.

Teams across the state have goals and aspirations to finish their seasons in their respective CIF Section Championship Game, but there is plenty of work to be done before that becomes reality. We hope to familiarize our readers with many of the teams across the state as we preview these individual programs across California. We will take you right up to first pitch this season with these team previews, eventually releasing our Preseason Power 25 rankings.

Please keep checking back throughout the season as we will be your one-stop shop for everything related to high school baseball across California. Each week we will be releasing our Power 25, Players of the Week, Diamond Notes, podcasts, and much more.

Our 2025 preseason coverage continues today with a preview of the San Marin Mustangs.


2025 TEAM OUTLOOK

High School: San Marin Mustangs
Head Coach: Jamie Vattuone
CIF Section: North Coast Section
Division: 3 (2024) 
2024 Record (Playoff Finish):  22-9 (Lost MCAL Championship, won D3 NCS Championship, Lost to Saint Ignatius in NorCal round 1)
Key Players Lost: Anthony Scheppler, Cole Chamberlain

+ No. Returning Positional Starters: 9
+ No. Returning Pitchers: 4
+ Team Strengths: We are going to be lead by our pitching and defense.

ROSTER PREVIEW

+ Key Players:

Seniors:

+ '25 RHP/INF Sean McGrath Cal Poly Commit

+ '25 OF/P Joey Cipolinna

+ '25 P/1B Tyler Keehn

+ '25 RHP/3B Tanner O'Keefe

+ '25 SS/RHP Hugh Brady

+ '25 INF Trevor Krejdovski

Juniors:

+ '26 C/3B Matthew Baldino

+ '26 OF Daniel Rolovich

+ '26 LHP Jaden Brown

+ Projected Starters: Sean McGrath, Tyler Keehn, Tanner O'Keefe
+ Projected Relievers: Joey Cipolinna, Jaden Brown, Dominic Label, Rory Ovick

IMPACT UNDERCLASSMEN

+ '27 Dylan Procopio

BOTTOM LINE

Winning the CIF-NS D3 was the exclamation mark on an outstanding season for our squad and while we did lose some key pieces off that team the squad we bring back this year looks very strong. We will be fronted by our pitching staff with our trio of starters looking to be the biggest strength of this team and a deep bullpen behind them making us tough to score runs on. Add in our ability to play strong defense and we should put together another solid season especially if we can swing the bats. - Coach  Vattuone

PREP BASEBALL CA STAFF’S TAKE

The Mustangs brought home the CIF-NCS D3 title in 2024 that capped a strong season which saw them compete for a League title and and reach the CIF-North Region playoffs. Now with a trio of talented arms fronted by the Cal Poly SLO commit Sean McGrath and two more seniors to toe the rubber starting off games that is backed up by a strong bullpen the Mustangs don't look like they will be an easy matchup for any lineup in 2025. Plus with a strong returning group of position players behind the quality arms on the mound I won't be surprised to see them in the mix for a run at the league title and another deep run in the playoffs come May. - Steven Hardesty Assistant Scouting Director

Learn more about California’s 2025 spring season below:

+ Follow San Marin on X: @SMmustangBB
+ Find more team previews on the Prep Baseball California Power 25 homepage

FOLLOW US THROUGHOUT THE SPRING

+ Prep Baseball California on X
+ Prep Baseball California on Instagram
+ Prep Baseball California on Facebook
+ Prep Baseball California on YouTube

MORE 2025 TEAM PREVIEWS

Upcoming Events

Showcase State Date Location
Central California Preseason ID CA 01/12/25 Ventura College
North Bay Preseason ID CA 01/25/25 Novato High School
Inland Empire Preseason ID CA 01/26/25 Ganesha High School
East Bay Preseason ID CA 02/01/25 Pittsburg High School
Sacramento Preseason ID CA 02/09/25 McBean Park
Orange County Rising Stars ID CA 03/02/25 Mater Dei High School
Inland Empire Rising Stars ID CA 03/30/25 Corona High School
Los Angeles Rising Stars ID CA 04/27/25 O'Malley Field

MORE PREP BASEBALL NEWS