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Mount Si High School Athletics Booster Club

GET YOUR WORK IN THE GYM

Weekly schedule

  • Monday 3:15 - 4:15pm
  • Wednesday 3:15 - 4:15pm
  • Thursday 2:45-3:45pm

Participation is not taken into account during team selection.

BOOSTER SUPPORTED OPEN FIELDS AND CAGES

To provide opportunities to get in swings, the Booster Club is supporting with oversight to allow for open field/cage time. 

Open sessions available through the month of February

  • Mon 2/2: 4:00 - 5:30pm
  • Tue 2/3: 3:00-5:00pm
  • Thu 2/5: 3:30-5:00pm
  • Fri 2/6: 1:00-3:00pm
  • Mon 2/9: 4:00 - 5:30pm
  • Tue 2/10: 3:00-5:00pm
  • Thu 2/12: 3:30-5:00pm
  • Fri 2/13: 1:00-3:00pm
  • No planned activities week of 2/16 due to mid-winter break
  • Mon 2/23: 4:00-5:30pm
  • Tue 2/24: 3:00-5:00pm
  • Thu 2/26: 3:30-5:00pm
  • Fri 2/27: 1:00-3:00pm

Participation is not taken into account during team selection.

CONTACT - SOCIAL FOLLOW

General inquiries can be sent to the email linked below.  

Please follow the Mount Si Baseball FB/IG accounts for regularly posted news about future schedules, events and more. 

MSHS SPRING SPORTS REGISTRATION

For all student-athletes looking to tryout make sure you complete your MSHS Sports Registration prior to March 3.  

Register and access form here --> 

Before beginning registration, please make sure you have the following:

  • Completed physical form
  • Basic medical and health information
  • Insurance company and policy number
  • Doctor, dentist, and medical specialist contact information
  • Hospital preference and contact information

SAVE THE DATE - REGISTRATION OPENING SOON


SAVE THE DATE


CHANGES FOR 2026 - MARINERS GAME LATER IN YEAR + REVISED TICKET PRICING

Volunteering

Volunteer SIGNUPS 
WILL BE ACTIVE AFTER TRYOUTS | MARCH 2026


Team Dinners

  • Varsity Team Dinner Sign Up-->
  • JV Team Dinner Sign Up --> 

Concession Stand

  • Concession Sign Up --> 

 

GAMECHANGER LINKS

WILL BE ACTIVE AFTER TRYOUTS | MARCH 2026
 

  • Mount Si Varsity Wildcats --> 
  • Mount Si Junior Varsity Wildcats --> 
  • Mount Si Froshmore Wildcats -->

Contact

Mount Si High School  
8651 Meadowbrook Way SE  
Snoqualmie, WA 98065  
Phone: (425) 831-8100  
Fax: (425) 831-8222