Message from our hosting company: Our hosting team is always making sure your server is running smoothly. We are planning some maintenance between 12/10/2025, 10:30 PM and 12/12/2025, 05:30 AM PST. You may experience some downtime during this period, but we'll keep it as short as possible. We appreciate your patience.
Note: You must have an account to register or update school/teams. For returning Head Coaches, login, for new Head Coaches, create a new account.

2025-2026 Washington Science Olympiad Registration

Division B (Grades 6-9) & Division C (Grades 9-12)


Please complete the online Registration as soon as possible. We will use your registered contact information for team-related communication. Team rosters do not need to be submitted for WSO registration - only the team coach (or designee) must register. Once registered, the coach (or designee) may add up to 4 assistant coaches.

1. Click on School/Team Registration under Coaches
2. Follow the steps to create your account (if first time)
3. After registering your school for the regional, select add/edit team if you have more than one team. You can also edit name of team(s). 
4. After adding the number of teams you need, select View/Pay Registration Fees
5. Select Pay By Check or Pay-Online with PayPal - Details and Fee schedules are below   

Team Composition and Limit on Number of Teams per School

Each team may have a maximum of 15 students. Once registered, the head coach (adult 21 years or older) may add up to 4 assistant coaches. Only 6 teams from a school may register during the early registration period (September 3-December 1). Additional teams from one school may register during the late registration period (December 2-January 15) on a space-available basis.

Membership Fee Schedule:

Teams are not officially registered until membership fees or Purchase Order or payment by check is received and processed. Reminder that ONLY when registration is finalized with WSO will the team be able to compete in Washington and elsewhere, including invitational and online tournaments. Fees paid to WSO cover applicable registration fees for regional, state, and national tournaments. 

Payment Methods – PayPal, Purchase Order, or Check:

Make sure to complete School/Head Coach Registration prior to adding school/teams. Membership fee is $300 (per team) for all returning teams. If your school needs special accommodation,  feel free to contact the state Director at  statedirector@washingtonscienceolympiad.com.

To pay online:

  1. Click on the Pay registration fees button above. You will be prompted to log in. Notes: (1) If you haven't registered your school or associated with one, the system will redirect you to the School Listing so you can review the list and register your school if necessary.(2) If your team registration has mix of discounted and regular team fees, contact State Director  (statedirector@washingtonscienceolympiad.com) to identify alternate ways to complete payment ... since Scilympiad/PayPal do not allow for directly paying for all teams with different registration fees.
  2. Select PayPal for immediate processing. Note, PayPal charges a small fee that is covered by the payee.
  3. Registration confirmation will be sent following payment confirmation.

To pay by Purchase Order:

  1. Email full copy of Purchase Order to statedirector@washingtonscienceolympiad.com (registration will not be processed with the PO # only - send the actual PO). Also note that the Scilympiad "purchase order" is NOT a substitute for the school/district's PO ... the school/district MAY use it to process payment, but from WSO policy, we need school/district PO in order to invoice for payment.
  2. State Director will finalize team registration and send confirmation.
  3. State Director will invoice the school/school district and credit the team registration when paid. Invoice terms are Net 30 (e.g., payment to be made within 30 days of receipt of invoice).

To pay by check:

Make check payable to Washington Science Olympiad, note school name on memo line if school name is not written on the check and mail to:

Washington Science Olympiad
C/O David Rosi

223 Flatt Rd
Kelso, WA 98626

Registration confirmation will be sent following receipt of payment.