Course
Marathon42.2 km
Half Marathon21.1 km
Key dates
- ★Race daySeptember 2027 · date to be announced
Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.
About
A point-to-point marathon and half marathon starting near Snoqualmie Pass and finishing in North Bend, Washington, running through the historic Snoqualmie Tunnel on the old Milwaukee Road rail grade. The net-downhill course is popular with runners chasing a fast time.
Your next race, seen from above.
Save Tunnel Light Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Save Tunnel Light Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.