The Mercer Island Half has transitioned to a Virtual Event. In an effort to avoid a large gathering of people, all participants are encouraged to complete their Half Marathon, 10K or 5K on their own time and at a place that they feel comfortable doing so. You can submit your race results here. 2020 participant bibs, shirts and medals will be made available to all registered participants in the coming weeks. More information on when and where you can pick up your items will be forthcoming.



Join thousands of competitive athletes, recreational runners, walkers and active families for the Spring kick-off event to Puget Sound’s running season! All monies raised support awareness for both Colon Cancer prevention and for local and international Rotary endorsed charities.

Thank you for supporting the Foundation of the Rotary Club of Mercer Island which is registered with Washington state’s Charities Program as required by law.  Additional information is available by calling 800-332-4483 or visiting