Registration Tips

Before you register, please read through these tips to make the process as efficient as possible. When you're ready, click here to visit our Online Registration page.

Confirm your player resides within our league's boundaries.
Click here to learn more about the boundaries for Mukilteo Little League.

Determine your player's League Age.
Your child's "League Age" may not be his or her current chronological age. Click here to learn more about League Age.

Gather your player's required medical information.
You will need to fill out a Medical Release form completely before your registration is final. Information you will need to provide includes:

  • Birth date
  • Date of last tetanus shot
  • Emergency contact name and phone number
  • Doctor's name and phone number
  • Insurance company and policy number

If you are requesting a Player Scholarship:
Click here to learn more about our Player Scholarship program and complete the online scholarship application.

Create your Member Account and register your player.
All families new to 2020 will need to create a new Stack Sports (formerly Bonzi) account in order to register, even if you have already created a Stack Sports/Bonzi account for another local youth sports organization like Mukilteo Youth Soccer or Mukilteo Lacrosse.

You will create one Member Account per family which you will use to register every player in your family. You will have the opportunity to register additional players after you have fully completed the first player's registration. Payment must be made in full by credit or debit card during the registration process.

When you're ready, click here to visit our Online Registration page.

Age Verification.
Players new to Mukilteo Little League or who have not yet been age-verified will be asked to provide a certified copy of a state-issued birth certificate to verify age. You may email a copy to the Registrar at or bring it to assessments/tryouts or Team Photo Day. If you have already provided proof of age in past years, you do not need to provide it again unless your child plays All Stars.

Proof of Residency.

You may be asked to provide proof of residency within our league's boundaries. Residency is established by documents from three or more of the following categories to determine residency of a player's parent(s) or guardian:

  • Driver's License
  • Voter's Registration
  • School records
  • Welfare/child care records
  • Federal records
  • State records
  • Local (municipal) records
  • Support payment records
  • Homeowner or tenant records
  • Utility bills (i.e., gas, electric, water/sewer, phone, waste disposal)
  • Financial records (loan, credit, investments, etc.)
  • Insurance documents
  • Medical records
  • Military records
  • Internet, cable or satellite records
  • Vehicle records

Players returning to Mukilteo Little League do not need to re-submit residency verification if no information has changed since last season, although the league may ask for such documents if there is reason to believe you have moved or your child no longer attends a Mukilteo school.

Parents/guardians will need to annually sign a Medical Release Form and provide it to the team manager.

Registration Policies
Click here for details on Mukilteo Little League's registration and refund policies: Registration Policies

And that's it! Welcome to the 2020 Spring season!
Keep an eye on your e-mail inbox for frequent correspondence from the league regarding tryouts, start dates, and other important information. Contact us at any time via the Contact page of our website or by e-mailing