When is Tunnel Vision Marathon and Half?

Tunnel Vision Marathon and Half takes place on Aug 9, 2026. That's in 4 months.

Where is Tunnel Vision Marathon and Half located?

Tunnel Vision Marathon and Half is held in Snoqualmie Pass, Washington, United States.

What distances are available at Tunnel Vision Marathon and Half?

Tunnel Vision Marathon and Half offers the following distances: 26.2M, 13.1M.

What is the typical weather for Tunnel Vision Marathon and Half?

Based on historical data, you can expect temperatures between 53°F and 71°F on race day. There's approximately a 7% chance of precipitation.

Tunnel Vision Marathon and Half (13.1M-26.2M) - Aug 9, 2026 | Snoqualmie Pass, WA

Get ready for a swift journey through the stunning landscapes of Snoqualmie Pass, Washington, at the Tunnel Vision Marathon and Half on August 9, 2026. Renowned as one of the fastest courses in the country, this event is a prime opportunity for runners seeking a personal record or a Boston Qualification, attracting a supportive community focused on speed and success. Typical race day conditions in early August are ideal for running, with average highs around 71°F and lows near 53°F, and only a 7% chance of precipitation.

The course itself is an exhilarating point-to-point downhill experience, primarily following a packed gravel former railway bed (John Wayne Pioneer Trail) that is forgiving on the legs. Marathoners embark on a truly unique adventure, beginning at the Hyak Sno-Park Trailhead and venturing through the historic, nearly 2.5-mile-long Snoqualmie Tunnel. This pitch-black passage requires a headlamp and creates an unforgettable communal experience as hundreds of lights illuminate the way before you emerge into the breathtaking mountain and waterfall scenery. While the marathon boasts a net elevation loss of approximately 1,000 feet in 2026 due to an updated course, the consistent downhill grade remains, ensuring a fast race. Half marathoners will join the course further along, enjoying the same scenic, fast, and downhill stretch without passing through the tunnel.

Aid stations are strategically placed approximately every 2.5 miles along the route, offering water, electrolyte drinks, and Honey Stinger gels, ensuring runners are well-supported throughout their race. While the finish line for 2026 differs from previous years, the spirit of the Tunnel Marathons—a smooth downhill trail and stunning Pacific Northwest vistas—remains unchanged. Participants can expect a professionally organized event with excellent course support, making the Tunnel Vision Marathon and Half an iconic and unforgettable experience, celebrated by runners for its potential to deliver exceptional times.