Whitehorse Half Marathon
Arlington, United States • 28 Mar 2026
Whitehorse Half Marathon
The Whitehorse Half Marathon is a community-centered running event held in Arlington, Washington. The race follows a 13.1-mile out-and-back course through the Stillaguamish Valley, starting and finishing at the Miller Shingle Trailhead along State Route 530. This event serves as a tribute to the resilience of the local community, with a portion of the registration fees donated to the Community Foundation of Snohomish County to support the long-term care of the Oso Slide Memorial.
The event offers a single distance:
- 13.1 miles
Participation is limited to 200 runners for this inaugural event. The race is open to both runners and walkers of all experience levels. Participants receive chip-timed results, a finisher medal, and post-race refreshments at the finish area. Registrations completed by the middle of March include an event t-shirt.
Awards are presented to the top three overall male and female finishers. The course remains open for four hours, providing a window for participants to complete the distance. Packet pick-up and check-in take place on-site at the trailhead prior to the start of the race. Visit the organization's website for the most recent information.