Race to the Top of Mount Si - 2026

Race to the Top of Mount Si - 2026

Be the first up to the top of Mount Si in 2026! Join us for the Race to the Top of Mount Si. 3.7 miles of grueling mountain terrain with 4,167 feet of elevation gain up to the Rock Garden.

Race starts promptly at 9 am. Do you have the courage to take on The Mount Si Challenge! Grab a running buddy and take the pledge to conquer Mount Si! The fastest up the Mountain receives the Golden Si Award. Top finishers receive gift cards and bragging rights. Age group ribbons and custom designed Mount Si T-shirts and Medal of Courage for all finishers. Gatorade, water, gel, and first aid will be available at the top and half-point.

Register today at SammamishRunning.com

Elevation Gain: 4,167’ – 3.7 miles

Event details and schedule

There is plenty of parking at the Mount Si Trailhead. You must have a Discover Pass ($15/day or $45/year).

Race starts promptly at 9 am.