Student Life

Boys Water Polo


Program Philosophy

The Boys Water Polo team will have an emphasis on practice, with the main idea being you play how you practice. A team-first attitude will be cultivated and expected from all team members to maximize the ability of all players.

Key Dates
  • The season will officially begin on August 8, 2022
  • VVAL Championship Tournament- October 25 and 27
  • NCS Playoffs- November 2-12, 2022

Meet the Coach

John Derr enters his 3rd season as the Varsity Boys Water Polo Coach after 2 years helping out in the program at both the JV and Varsity levels. Coach Derr played Water Polo for 2 seasons at the College of the Sequoias and for 1 year at Division 1 Long Beach State. Last season, Coach led the team to a 3rd place finish in the VVAL and a berth in the VVAL playoffs.

Coach currently has 2 children attending Justin-Siena and holds a Bachelor of Science degree in Fruit Science. During the day, coach works as a farmer.

To contact Coach Derr, please email him at

Justin-Siena High School

4026 Maher Street
Napa, CA, 94558
United States
T: 707.255.0950 
F: 707.255.0334
Justin-Siena is a Lasallian Catholic college preparatory community that serves young people in grades 9–12.