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Elton Eastside Triathalon Returns to Lake Sammamish

Mark your calendars for the return of the Elton Eastside Triathlon in 2018! Lake Sammamish park and the Eastside are a prefect backdrop for a fun and fast triathlon.  We have undergone some course changes so make sure you take a look at the course.  The race has returned to its sprint-distance roots for a fast and furious course. And added a Super Sprint for those that would like a shorter swim. We'll also have a Kids Race this year for kids 5-10 years old. 

Athletes can expect the same, energy-filled finish line experience, complete with a full breakfast, awards celebration, and prize giveaways including a new bike! To register visit

Earlier Event: June 21
AVP Beach Volleyball
Later Event: June 30
Mini Ranger Programs