Snoqualmie Valley Half

JUN
19
2027
Flat USATF-certified half marathon and 10K on the Snoqualmie Valley Trail in Carnation, WA, finishing by the historic big red barn.
Sat 19 Jun 2027
13 miles 10 kilometers

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Snoqualmie Valley Half

The Snoqualmie Valley Half is a running event in Carnation, WA, offered as a half marathon, a 10K, and a virtual option. Both the half marathon and the 10K are USATF certified (Half: WA16003RMB; 10K: WA16002RMB) and use an out-and-back route on the Snoqualmie Valley Trail that passes through forest and farmland.

The course starts at King County’s Tolt MacDonald Park, winds about half a mile through the park, follows a scenic connector trail along the Tolt River, then joins the Snoqualmie Valley Trail at about mile 1.25 before turning at a defined turnaround and retracing to the finish near the historic big red barn. The surface is smooth and non-technical, and the profile is described as flat and fast.

Aid stations and facilities are provided at specific mile markers. Half marathon aid stations are approximately at miles 2.9, 5.9, 7 and 10.2 and offer water, Tailwind electrolyte drink and GU gels; portable restrooms are located at the start/finish and at miles 2, 2.9, 10.2 and 11.1. 10K aid stations are at approximately miles 2.9 and 3.3 with water and electrolyte drink and a restroom at the aid station. The event is cupless; participants are expected to carry a handheld or use a small reusable folding cup.

The race acknowledges that it takes place on the ancestral lands of the Coast Salish and the Snoqualmie Indian Tribe. Visit the organization's website for the most recent information.

13 mi
Half Marathon
10 km
10k
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