Check this page often for updates on WSO announcements, tournaments, events, NSO information, and coaching tips.

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   > WSO Unified Schedule
   > Trial Events
   > Teams Advancing to State Tournament
   > SO Event Alignment with WA GLEs
   > Meeting and Coaching Workshops
   > Science Olympiad Videos
   > Coaching Tips / Information


Registrations for the 2018-19 season are scheduled to begin 8/1/18; however, the registration process is undergoing transformation and should be available by 9/4/18. Please check the web site for updated information. The 2018-19 registration deadline is  January 15, 2019.

New schools (or schools that have not registered with WSO within last 5 years) may register for $150 discounted new team fee ... or contact State Director to find out about new team registration waivers. If registering more than one new team, the returning team fee applies ($250 per additional team) If registering 3rd or more teams after December 1, the fee is $150 per team (on a space-available basis only - check with State Director for availability before submitting registrations).

WSO team registration confirmation provides indication of registered regional tournament and a link to electronic rules manual (on national Science Olympiad web site). For print copy of rules, go to national Science Olympiad store to purchase. Link to electronic rules manuals should be available by mid-September, so the earlier you submit registration form/payment or PO, the sooner you'll get access to rules manual and can begin preparing for the tournament. NOTES: (1) Purchase of a rules manual from national Science Olympiad Store does NOT register your team for Washington Science Olympiad; (2) Teams registering with a purchase order must submit a "hard" copy of the purchase order (e.g., send the actual PO - not just the PO #) to finalize registration; (3) Coaches should receive e-mail confirmation of registration/link to rules manual within 2 weeks of submission of final registration documentation ... if you don't receive registration confirmation within that time frame, please contact State Director to determine registration status; (3) Teams must formally withdraw registration by January 15, 2019, in order to obtain a refund; (4) Registered teams will receive a unique team number that will be used in ALL tournaments in the state -- invitational, regional, and state. Rotations (X, Y, Z) will be provided to coaches by January 16.

No more than 6 teams from one school may register prior to December 1 and MUST register for a tournament in the school's geographical region. After December 1, additional teams may register on a space-available basis with possibility to move all registered teams to a different geographic loaction. After December 1, 3rd or more teams may register at the discounted $150 fee; 2nd teams from a school will pay full $250 registration fee.

Schools registering 3rd or more teams AFTER December 1 may register for $150 on a space-available basis.

2019 Rule Clarifications - Check NSO site

General Information/FAQs

Latest News


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 when able, but here are tentative schedules:

B Division - Bothell HS - 3/16/19

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


All tournaments in Washington state adhere to the same schedule in order to provide continuity of competition from the invitational to regional to the state tournament. Click on the link below for the most recent schedule. Contact State Director if you are unable to open the document.

FINAL SCHEDULE - 2019 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 tournaments in WA adhere to this schedule with SOME flexibility for Tournament Directors discretion to meet the needs of their tournament site. Tournament Directors MAY adjust schedule as long as coaches are notified by January 16.


Pilot and trial events are selected by the WSO Board of Directors based on coach feedback/request and/or trial events that are scheduled to become regular events in later years on the national SO lineup.

2019 Washington Pilot Event B & C Divisions:

Lindbergh Electric Airplane Flight (LEAF) Challenge

This event will be run at all WSO tournaments with scores figuring into overall team results unless Tournament Director identifies it will not be run. NOTES: (1) Teams MUST use above-linked rules (note that 1/23/19 a change was made to 4.b. Please note the 2.5/5 meter changes are what will be used in all tournaments. (2) Rubrics used for judging LEAF Challenge:

Scoring sheets for Poster and Interview; DIY construction info; and other LEAF resources )

2019 Trial Events (will be run at state tournament - check with regional tournament director to see if will be run). Please use these rules (rather than what is posted to national Science Olympiad web site):

B Division - Ping Pong Parachute (aka Indoor Bottle Rocket); Environmental Chemistry

C Division - Wi-Fi Lab;
Environmental Chemistry

Teams advancing to the state tournament should use rules posted to WSO web site - click on above links - to ensure you have the version being used in Washington. (Do not use the rules on the national Science Olympiad web site.)

NOTE: LEAF Challenge pilot event will be included in all WSO tournaments and scored regularly (going into overall team score). Inclusion of trial events identified above is at regional tournament director's discretion. Trial events WILL be included at the state tournament. Descriptions and rules for trial events are not in the official electronic rules manual obtained from the national SO Store.

Number of Teams Advancing from Regional Tournaments to State Tournament:

The number of teams advancing to the state tournament from regional tournaments: 22 teams per division

Numbers are determined after the registration deadline (Jan 15).

To determine the number of teams advancing from regional tournaments to the state tournament in each division, the following formula shall be applied:



Resulting fractional numbers will be rounded down (.1 to .4) or rounded up (.5 to .9).


If there are 79 B teams registered statewide and 20 B teams can be accommodated at the state tournament.  There are four regions:

Region 1 has 18 teams

Region 2 has 24 teams

Region 3 has 23 teams

Region 4 has 14 teams


Based on the formula above, the following number of teams should* advance to the state tournament:

Region 1 will send 5 teams (formula3

Region 2 will send 6 teams formula4

Region 3 will send 6 teams formula5

Region 4 will send 4 teams formula6

*In years when rounding up results in more teams being eligible for State than the tournament is able to accommodate (as identified in the above example, where 21 teams should advance), the region/s with the greater number of teams will be given priority.  In the example above, this would be the actual number of teams that advance to the state tournament based on only 20 teams being accommodated:

Region 1 – 5 teams
Region 2 – 6 teams
Region 3 – 6 teams
Region 4 – 3 teams (even though the formula allowed for rounding up to 4 teams, with only 14 teams, this region has the fewest number of registered teams; therefore, the other regions are given priority in advancing to the state tournament).

2019 Season Teams Advancing to State: Based on 2019 registrations, there are 83 B and 71 C teams registered and that Highline College will accept 22 teams per division (with possibility for up to 24 teams ONLY if issues relating to the advance formula or scoring issues with a regional tournament). Following finalized scores from each regional tournament, teams identified as advancing to the state tournament will be contacted  to accept an invitation to attend the state tournament:

Eastern regional (Spokane) - 6-B; 4-C

Northwest B regional (Bothell HS) - 9-B

Northwest C regional (University of Washington) - 13-C

South Central B regional (Yakima) - 2-B

Southwest regional (Vancouver) - 6-B; 5-C

Event Alignment with Washington State GLEs:

B division alignment
B matrix
C division alignment
C matrix


Meetings and Coaching Workshops - Click on link for information about the NSO Summer Insitiute and other clinics.

2018-19 WSO Coaches Clinics

For a list of invitational tournaments (opportunities to practice prior to regional tournaments), check out the Tournaments page.

Science Olympiad video clips


Check out the latest brochure from the Puget Sound Center for Teaching, Learning and Technology - brochure

Check out the latest brochure from the Puget Sound Center for Teaching, Learning and Technology - brochure

Awesome Aquifers & Hydrogeology Website - brought to you by the Ground Water Foundation. Check out the Competition Tips for Students. While this event is not currently on the Science Olympiad schedule, most events rotate through every few years. Teachers may want to use this as a classroom activity.

Probes and other measurement devices are used in a variety of Science Olympiad events like Bio-Process (B) and Technical Problem Solving (C). Texas Instruments has many products that meet event requirements. See their web site for product and education details: http://education.ti.com/educationportal/sites/US/homePage/index.html

Information on funding and grants for TI products: http://education.ti.com/educationportal/sites/US/sectionHome/grantandfunding.html

A great place for coaches to find practice tests.



WSO Coaches