Our Coaches

Train with the Best

The Diablo Alliance coaching staff includes former USA National Team Members, NCAA National Champions, College and High School All-Americans and current local Varsity High School Coaches. Each of our coaches work hard to focus their attention on the particular skills and disciplines that are appropriate for the level of athlete under their guidance. Our coaches take special interest in both building individual skills as well as team concepts to ensure our athletes progress together and participate at all levels. As water polo is a team sport we encourage group activities both in and out of the pool and coordinate team social activities with each age group team during each session and at tournament weekends.
Below is a listing of our wonderful group of coaches:

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Head Coach & CEO

Robby Arroyo

Robby became passionate about water polo at a young age. He has won major water polo events like National Junior Olympics, Champions Cup, CIF-SS D1, MPSF Conference, and many more including with Team USA and Professionally. While in high school he trained with the 1996 Olympic Team alongside his older brother Gavin. Robby has been focused on expanding the sport of water polo for both boys and girls at multiple levels along with hosting local tournament opportunities to aid in the expansion of the sport (CCCA Regional & State Championships, CAL Cup, ODP National Championships, etc.). Below are some of Robby’s water polo accomplishments:

  • Diablo Alliance Head Coach (2016-Present)

  • De La Salle HS Head Coach (2020-Present)

  • Acalanes HS, Boy's Head Coach (2018-2020)

  • Las Positas College, Head Men's Coach (2015-Present)

  • Lamorinda Water Polo, Head Coach, 14U Girls (2012-2016)

  • California State University, Long Beach - Volunteer Coach (2006-2008)

  • Golden West, Head Coach 18U Boys (2005)

  • Foothill High School - Assistant Coach, Men's Varsity (2005)

  • Pinole Valley - Head Coach 18U Boys

As a Player:

  • USA National Team

    • Member of the USA Youth, Junior and National Teams (1992 - 2000)

    • USA "Top16" Swimmer, US Swimming Jr. and Sr. Nationals

  • Played Professionally in Greece, Spain and Hungary

  • University of California, Berkeley:

    • 4 Year Starter

    • MPSF Champion and NCAA Runner Up (2002)

    • Team Captain and member of hiring committee for head coach (2002)

  • Runner-up at Men's Outdoor Nationals, NYAC (2002)

  • SOCAL, Won several NJO Championships & Inaugural Champions Cup (1987-1998)

  • Foothill High School, Santa Ana, CA (1994-1998):

    • 4 time All American, All CIF SS, All OC County, All League in Swimming and Water Polo

  • CIF SS Water Polo Player of the Year (1997)

  • Played in 3 CIF Championship Games--Winning in 1995