Tournaments & Schedules

Events List & Schedule

All Division B and Division C tournaments (Invitational, Regional, and State) in Washington state will follow the WSO Unified Schedule. Tournaments may add additional time blocks as needed to accommodate teams and their venue. Coaches have opportunities to comment before it is finalized end of October.

Unified Schedule (Final)

Please see national Science Olympiad Rules Changes/Corrections and Rules Clarifications/Frequently Asked Questions (FAQs)—which apply at WSO tournaments—as well as resources for preparing for events on our page of resources for teams.

Sustainable Energy (Division B/C), Quantum Quandary (Division C), and Game Agent (Trial, Division B/C) are Washington-specific events. The event rules for these events are linked directly on the schedule. Visit our Resources page additional resources, including tests and answer keys from previous years.

Elementary Tournament

Southwest region is hosting a Division A (elementary) tournament on November 15, 2025 (9 AM – 12 PM) at Clark College (Vancouver, WA). Registration is limited to schools in the Southwest region. There will be a coaches clinic on September 27, 2025, for teams participating in the tournament. For details contact swwascioly@gmail.com.

Invitational Tournaments

All teams registering for an invitational tournament must be registered with their state Science Olympiad (i.e. Washington Science Olympiad if you are in Washington State). Please check back regularly for registration links and new tournament information.

Other invitational tournaments outside of Washington state are listed on the national website, which is updated periodically. These tournaments may follow a different event schedule and may feature events not included on the Washington event slate.

Regional Tournaments

Washington teams register with their geographic location. No more than 6 teams from one school may register prior to December 2; then on space-available basis, additional teams may register. Early registration is strongly encouraged for Northwest region teams as capacity may be limited. See the Registration page for deadlines and more details.

Numbers of teams advancing from each Regional Tournament to the State Tournament will be announced after the last Regional Tournament date. Please see our Policies page for how this number is calculated.

Eastern Region

  • March 7, 2026 – Lewis & Clark High School (Division B/C)

Northwest Region

  • February 21, 2026 – North Seattle College (Division C)
  • February 28, 2026 – Raisbeck Aviation High School (Division C)
  • March 7, 2026 – Northshore Middle School (Division B)
  • March 14, 2026 – Raisbeck Aviation High School (Division B)

Southwest Region

  • March 7, 2026 – Lower Columbia College (Division B/C)

State Tournament

Central Washington University (Division B/C) – April 18, 2026

National Tournament

University of Southern California (Los Angeles, CA) – May 22–23, 2026

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