Welcome to registration for the Whitehorse Oso Strong Half Marathon, a scenic and community-centered 13.1-mile out-and-back run honoring resilience, remembrance, and the enduring spirit of the Stillaguamish Valley. We are grateful to have you as part of the First Whitehorse Half Marathon, setting the foundation for an event rooted in purpose and community.
A portion of event fees will be donated to the Community Foundation of Snohomish County to support long-term care of the Oso Slide Memorial.
Limited to 200 runners to be part of the first chapter
Registration Includes
- Chip-timed results
- Finisher Medal
- Event T-Shirt for registrations completed by March 15
- Awards for the Top 3 Overall Male and Female Finishers
- Post-race refreshments at the finish area
Important Registration Information
- All registration fees are non-refundable
- Transfer options may be available under our Refund & Transfer Policy
- Event is open to runners and walkers of all levels
Please review all event details, policies, and course information before registering.
Registration Discounts:
Early Bird registrants receive $5 off with promo code "EARLYBIRD" when registering by January 31, 2026.
View Full Event Details
https://www.leedventuresrun.com/events/whitehorse-half-marathon
We look forward to welcoming you to the trail and sharing a meaningful race experience.
