Hardball PR Coaches

Meet our team of baseball coaches, including Jim Hayes, Benny Castillo, and the rest of the Hardball HQ crew. We are dedicated to inspiring and developing the next generation of players.

shallow focus photography of baseball
shallow focus photography of baseball

Our team features coaches with diverse backgrounds and coaching philosophies, each bringing unique experiences and insights to help athletes achieve their full potential on and off the field.

Meet Our Coaches

Jim Hayes
  • Scouting Coordinator

  • Scheduler

  • Pitching

Jim Hayes has managed, coached, and handled administration at all levels of baseball for the past 15 years.

As a pitching coach, Coach Jim leans towards strategies and mechanics while elevating players to the next level of play.


B.S. Degree in PsychologyLicensed Psychiatric Technician in California for 30 years
Hazer Baseball

Proud Grandfather of 2

Benny Castillo

Played college ball at Central State Ohio and Oklahoma State University.

Drafted by the Detroit Tigers

Played professionally until moving to coaching in 2000.

Coached professional baseball and worked in player development.

Check out Benny's Bio Here!

Marshall McDonald
  • Hitting Coach

  • 1st base / IF

    Marshall McDonald enters his fourth season as the head baseball coach at Catawba Valley Community College in 2024-25. Coach Marshall led Catawba Valley to its first Region 10 championship since 2015 and was just one game away from making the NJCAA Division II World Series.

    Coach Marshall's Bio

Garry Templeton

  • Hitting

  • Infield

A Padres Hall of Fame SS, Garry Templeton played for St. Louis, New York (Mets), and San Diego during a career that stretched from 1976 to 1991.

First switch hitter to record 100 hits from both sides of the plate.

Managed in the minor and independent leagues from 1998 through 2013.

Check out his Wiki

Von Joshua

  • Outfield

  • Hitting

Von Joshua was born in Oakland California in 1948. He played 10 seasons in the major leagues including the World Series in 1974 with the Dodgers.

Von went on to coach another 25 years with the Dodgers, White Sox, Toronto, and the Cubs organizations.

Von was also manager for 4 years in Taiwan and most recently as a coach/manager for the USPBL League.

Dalphie Correa

  • Infield

  • Outfield

  • Hitting

Dalphie Correa is a former coach in the Frontier League, Atlantic League, and minor league baseball. He also coached in the Puerto Rico Roberto Clemente Professional Winter League, was the Mayaguez Indios coach, and served as the Manager of the Puerto Rico Islanders.

Jeremiah Mauch
  • Bachelor's Degree from Mount Marty University

  • Masters Degree in Athletic Training from Augustana University

  • Certified athletic trainer

  • Instructor at D-Bat

  • Pitched for the Lake County Dockhounds in the American Association.

  • College starting pitcher & closer


My knowledge of how the body heals
itself, and interventions used to boost recovery, paired with my knowledge of baseball movements, helps me prevent and treat injuries effectively.

20 years of coaching and administration experience including coaching, corner, promotor, board of directors, and commissioner. ABCA member. Dr. Tom Hanson Coaching the Mental Game Training (Play Big Academy). NLP Certified. ArmCare Specialist Certified.

Administration: Eric Batchler
woman wearing yellow long-sleeved dress under white clouds and blue sky during daytime

Contact Our
Baseball Coaches

Get in touch for coaching inquiries or to learn more about how our coaches can help you become a better baseball player.