Snoqualmie Valley Half Marathon
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Snoqualmie Valley Half : Carnation, WA
The Snoqualmie Valley Half is scheduled for June 27, 2026 in Carnation, Washington, with the race start and finish at King County’s Tolt MacDonald Park (31020 NE 40th St). The event includes these distances:
- Half Marathon
- 10K
Course and event details
Both courses follow the Snoqualmie Valley Trail corridor. Runners leave Tolt MacDonald Park, follow a connector trail along the Tolt River, join the Snoqualmie Valley Trail at about mile 1.25, run the outbound section, then turn around and retrace the route back to the park. The courses are described as flat, with a smooth, non-technical surface, passing old-growth forest and farmland. The half marathon is USATF certified (WA16003RMB); the 10K is USATF certified (WA16002RMB).
Aid stations and on-course services: half marathon aid at about miles 2.9, 5.9, 7, and 10.2 offering water, Tailwind electrolyte drink, and GU gels; portable restrooms on the half at miles 2, 2.9, 10.2, and 11.1. The 10K has aid at about miles 2.9 and 3.3 with water and electrolyte drink and a porta-potty at the aid station. The event is cupless - participants are encouraged to use a handheld bottle, hydration pack, or a small reusable cup. Parking is at Tolt MacDonald Park, Tolt Middle School, and on downtown Carnation streets; if the park lot fills, participants will park in Carnation and walk about 1/3 mile to the park. Awards are given to the top three overall in male, female, and non-binary categories by gun time and to age groups in five-year increments; awards must be picked up at the race. The event partners with the Issaquah Food and Clothing Bank. A beer garden operated by Iron Horse Brewery donates proceeds to the Eastside Firefighters Benevolent Fund. Visit the organization's website for the most recent information.