Date
June 7, 2026
Field Size
Medium (500 - 1,999)
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Net downhill of 980ft from the Cascades to the valley floor — one of the steepest legal drops in the U.S.
Tunnel section early in the race provides a unique, cool running experience
Gravel and packed dirt surface promotes a softer landing compared to traditional asphalt courses
Breathtaking Pacific Northwest views dominate the landscape, with forested paths and mountain backdrops
B.A.A. downhill indexing may apply. For 2027 Boston registration and beyond, certified courses with 1,500+ ft net downhill receive a +5:00 or +10:00 adjustment, and courses with 6,000+ ft net downhill are not eligible.
Set in the serene backdrop of the Pacific Northwest, the Light at the End of the Tunnel Marathon offers runners an unforgettable experience. Starting in North Bend, Washington, the course takes you along a scenic route that includes the iconic tunnel from which the race gets its name. This marathon is unique for its significant net downhill profile, dropping nearly 980 feet from start to finish, creating one of the steepest legal drops for a marathon in the United States. For those eyeing a Boston Qualifying (BQ) time, this race presents a viable opportunity. The relentless descent aids in maintaining momentum, but it requires strategic pacing and strong quads. Race day begins with a picturesque start in the shadow of the Cascade Mountains. Runners will navigate through a dark, cool tunnel early on, emerging into breathtaking forested landscapes. The course is primarily gravel and packed dirt, which can be easier on the joints compared to asphalt. However, runners should be prepared for the uneven footing typical of trail-like conditions. The field size is intimate, allowing for a more personal feel and less congestion throughout the race. While the community support is lighter compared to urban marathons, the natural beauty more than compensates for it. This race is an excellent choice for those who appreciate quiet, nature-focused runs with a touch of adventure, thanks to the tunnel and descent. The marathon has developed a loyal following over the years, drawing runners who return for the unique experience it provides.
BMQR course profile: Downhill.
Starting strong but conservative is key in the Light at the End of the Tunnel Marathon. The early miles feature a steady, significant downhill; resist the temptation to go too fast initially, as the gravel surface calls for careful footing. Stay controlled in the tunnel section, where the sudden darkness can disorient. Focus on maintaining a balanced effort throughout — with the descent, it's easy to overexert early and pay for it later. Proper downhill running technique will protect your quads and preserve energy for the final miles, where pacing can make or break a BQ attempt.
No elevation data was found in the course profile file.
Historical average based on 3-year data for this race date
Temp
79.0°F / 51.6°F
Conditions
Partly Cloudy
Precipitation
0.00 in
Wind
5.7 mph
Historical averages · Source: Open-Meteo · Actual conditions will vary
Typical conditions: Warm to hot (65–80°F), humidity varies. Summer racing demands careful heat management and aggressive early hydration; build a conservative first-half plan and let your fitness carry you home.
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