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 9, 2021
  • VVAL Championship Tournament- Wednesday, October 27 and Thursday, October 28, 2021
  • NCS Playoffs- November 3-13, 2021
  • Nor-Cal Championships- November 17 and 20, 2021

Meet the Coach

John Derr enters his 2nd 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.

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