Washington · Marathon · Half Marathon

Light at the End of the Tunnel Marathon (Tunnel Light Marathon)

Light at the End of the Tunnel Marathon (Tunnel Light Marathon) is a marathon and half marathon event held in North Bend, Washington. Its next confirmed date is Sunday, September 12, 2027. About 800 runners take part across all distances.

Race day
September 12, 2027
Location
North Bend, WA
Field size
~800 runners

Race details

Date
Sunday, September 12, 2027
Distances
Marathon, Half Marathon
Field size
About 800 runners
Course
Net downhill ~1,000 ft drop; runs through the Snoqualmie Tunnel
Registration
tunnelmarathon.com

Registration, course & weather

Course profile
Out-and-back course; Mostly trail, some road; USATF certified; Boston qualifier
Typical race-day weather
about 48°F at the start, 96% humidity, 3 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026)

About the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)

A fast, net-downhill marathon and half on smooth packed gravel that starts in the historic Snoqualmie Tunnel (headlamp required) and descends toward North Bend, a popular Boston-qualifying course.

Rankings and notes

Rankings and awards
FindMyMarathon Top 50 BQ Races 2026 — #25 (BQ rate 23.0%, PR score 104.5, Downhill); USATF-certified Boston Marathon qualifier; renowned fast downhill PR/BQ course

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Light at the End of the Tunnel Marathon (Tunnel Light Marathon): common questions

When is the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)?
The next confirmed date is Sunday, September 12, 2027.
Where is the Light at the End of the Tunnel Marathon (Tunnel Light Marathon) held?
In North Bend, Washington.
What distances does the Light at the End of the Tunnel Marathon (Tunnel Light Marathon) offer?
Marathon and Half Marathon.
How many people run the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)?
About 800 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)?
Registration is handled by the organiser at tunnelmarathon.com. Entry fees, caps and deadlines are set there.
What is the course like at the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)?
Out-and-back course; Mostly trail, some road; USATF certified; Boston qualifier.
What is race-day weather usually like at the Light at the End of the Tunnel Marathon (Tunnel Light Marathon)?
about 48°F at the start, 96% humidity, 3 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo historical archive (gridded reanalysis), checked October 8, 2026).