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Coaching Staff

The California Warriors coaching staff is comprised primarily of former California Warriors players who have played or currently play college baseball. We have a Coach Development Program that ensures our coaches learn subtleties of teaching student athletes about baseball while developing important life skills in leadership and interpersonal communication. Click here to apply to become a California Warriors Coach.

California Warriors Coaches

Christian Merriwether has been coaching for the California Warriors coach for three seasons. Merriwether is a former California Warrior player who played college baseball at College of Marin and D-II Rogers State University, where he graduated from in 2021. He has a deep knowledge of the game and experience working with youth. In the fall of 2022, Christian played with the Trenton Thunder in the MLB Draft League.

Marcus Chiu is a California Warriors alum who currently plays Double-A ball in the Miami Marlins organization. The former College of Marin standout has coached for the California Warriors during past Winter Ball seasons and brings a valuable perspective of a professional ballplayer to the program.

Elijah Smith grew up in the Bay Area and is a California Warriors alum. He graduated from Campolindo HS and played Junior College baseball at Contra Costa College before transferring to Academy of Art University and earning his Bachelors degree in 2019. This is the second year that Coach Smith will be on the California Warriors Coaching Staff. During the school year, he is an Assistant Coach at Academy of Art University. He brings great enthusiasm and experience to the field.

Steven Elsner, a California Warriors alum has coached for the Warriors in past summer and fall seasons. Steve attends and plays baseball at College of Marin and intents to transfer to a 4-year college to continue his academic and baseball pursuits.

Robbie Brue is a California Warriors alum who is returning to the organization for his first summer as an Assistant Coach. Robbie attended Academy of Art University before transferring to Huston-Tillotson University where he plays Catcher and 3B and is majoring in Communications & Media Technologies. In addition to his Assistant Coaching duties, Robbie will spend time working closely with the California Warriors catchers as a position specialist.

Isaak Kreft is a California Warriors alum is entering his junior year at University of Hawaii at Manoa where he is studying Marine Biology. This is the second summer that Isaak will be on the California Warriors coaching staff. Isaak has an enormous passion for the game and brings that positive energy to the field every day.

Max Valencia is a former minor league player and Kansas City Royals scout who coached for the California Warriors Collegiate Team in years past. He currently does private pitching instruction where he resides in Southern California, and will be helping coach our teams at the tournaments in Irvine and San Diego.

Jojo Serrano pitched for the California Warriors and currently is an Assistant Coach at Lincoln High School and the Head Coach at Hoover Middle School. Jojo attends City College of San Francisco and is returning to our organization for his first summer as a California Warriors Coach.