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Mount Si High School

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Athletics

Athletic Director: Jordan Sauvage | Athletic Administrative Assistant:  Tammy Frederick

 Athletic Trainer: Ellie Stannard

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KingCo Conference Online Ticketing


2026-2027 Registration is OPEN!

Sports Physicals must be valid the ENTIRE sport season and uploaded to Final Forms. 

Outstanding Fees and Fines must be paid prior to participation.

Register Now

Sports By Season

*Please note Cheerleading and Dance/Drill are year-round.  Registration and try outs are held in the spring of the following year.  WIAA State Competitions are held in the Winter season.