Whitehorse Half Marathon

MAR
28
2026
Experience a scenic 13.1 mile out and back run through the Stillaguamish Valley in Arlington. This community event supports the Oso Slide Memorial and offers chip timing and finisher medals for all participants.
Sat 28 Mar 2026
13 miles

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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.

13 mi
Half Marathon