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Currently planned invitational/A-B-C Division tournaments for 2018-19:

~SW Region A Tournament - 11/17/18 (Clark College, Vancouver, WA). Elementary division tournament. Registered teams may participate in the 9/29/18 Coaches Clinic.

~SW Region B Invitational Tournament - 12/1/18 (Camas HS, Camas, WA). Registration Information.

~SW Region C Invitational Tournament - 2/2/19 (Camas HS, Camas, WA). Registration Information.

~NW Region B Invitational Tournament - 1/19/19 (Northshore MS, Bothell, WA). Registration Info.

~NW Region B Invitational Tournament - 2/9/19 (Chinook MS, SeaTac, WA). Registration Information.

~~NW Region C Invitational Tournament - 12/8/18 - Raisbeck Aviation HS (Tukwila, WA).

NW Region C Invitational Tournament - 1/12/19 (Curtis HS, University Place, WA).


If any Washington school or organization wishes to sponsor an invitational tournament, please contact your regional board or the State Director well in advance of your planned event to obtain approval and to get on the WSO schedule.


Eastern Region (Spokane Falls Community College) - 3/9/2019

Northwest Region - B Division ONLY (Bothell High School) - 3/16/2019

Northwest Region - C Division ONLY (University of Washington) - 3/9/2019

South Central Region - B Division ONLY (Yakima Valley College) - 1/26/2019

Southwest Region (Clark College) - 3/2/2019

WSO Unified Schedule ... and Special NW Regional Schedules

Due to loss of one NW B-C tournament, each of the B and C tournaments in the NW have an extemely high number of registered teams. The X/Y rotation on the WSO Unified schedule cannot be used. Each tournament will have a unique schedule with XYZ or WXYZ rotations. The tournament directors will provide additional info, as able, and we'll post any tentative schedules here:

B Division - Bothell HS - 3/16/19

C Division - University of Washington - 3/9/19

FINAL SCHEDULE - Final WSO Unified Schedule. Changes were made 1-5-19 to the 9-22-18 FINAL schedule to help tournament directors better accommodate LEAF Challenge (B-C) and Sounds of Music (C) sign-ups by permitting zero-hour testing. Your tournament director will provide a final schedule for that tournament; but be prepared that zero-hour testing may occur (offset is that not all teams from the same school MUST sign up in the same block for device testing).

All invitational, regional and state tournaments in Washington adhere to unified schedule unless tournament director provides alternate schedule to registered teams. See above NW B & C Division tentative schedules. Tournament director will provide final schedule ASAP.

Be sure to use FINAL schedule in preparing for tournaments.


Highline College - 4/13/2019


Cornell University (Ithaca, NY) - May 31-June 1, 2019


Event supervisors are an integral part of all Science Olympiad tournaments. Washington Science Olympiad event supervisors may find event information at the following sites:

National Science Olympiad - Be sure to check event FAQs and Rules Clarifications on the national site before preparing your event.

Washington Science Olympiad maintains an Event Supervisor Guide - a web site for providing event supervisors with general preparation and event-specific information.

Tournament Directors may also have access to scoresheets and a test bank for events that can either assist in developing tests or can be used in emergency situations. Contact your Tournament Director for available event scoresheets and tests.