On June 7, 2026, Tunnel Marathon returns as one of North America’s most distinctive race experiences, beginning at high elevation near Snoqualmie Pass and descending gently toward North Bend on the Palouse to Cascades State Park Trail. The event offers a marathon and a half marathon, both point-to-point and run entirely on compacted crushed gravel — firm enough for road-style pacing but with trail-like character underfoot. Runners start with the unforgettable experience of passing through a long, unlit railroad tunnel before daylight and scenery open up around evergreen forests, streams and Cascade foothills. With its consistent downhill grade and smooth trail surface, the course is a popular choice for personal bests, while the scenic setting and small-race community feel add to its appeal. Both distances finish in North Bend near the historic depot area, giving a warm welcome and a memorable end to the trail run.
Races
The Light at the End of the Tunnel Half Marathon is also held on Sunday 7 June 2026 (same event day), starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, WA, organised by Tunnel Marathons on the same speedy downhill course profile—ideal for runners chasing a big PR with a tunnel-to-valley finish.
The Light at the End of the Tunnel Marathon takes place on Sunday 7 June 2026 at 7:00 a.m., starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, Washington, USA, and is organised by Tunnel Marathons as a famously fast, net-downhill point-to-point road marathon featuring the signature stretch through the historic tunnel.
Weather based on historical averages.
FAQs
What is the Tunnel Half Marathon?
How long is the Tunnel Half Marathon?
Where does the Tunnel Half Marathon take place?
What is the elevation gain of the Tunnel Half Marathon?
How can I prepare for the Tunnel Half Marathon?
How do I choose the right training plan for the Tunnel Half Marathon?
The Light at the End of the Tunnel Half Marathon is also held on Sunday 7 June 2026 (same event day), starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, WA, organised by Tunnel Marathons on the same speedy downhill course profile—ideal for runners chasing a big PR with a tunnel-to-valley finish.
The Tunnel Half Marathon is 21km long.
The Tunnel Half Marathon takes place in Snoqualmie, WA, USA.
Runna classifies the Tunnel Half Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Tunnel Half Marathon?
The Light at the End of the Tunnel Half Marathon is also held on Sunday 7 June 2026 (same event day), starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, WA, organised by Tunnel Marathons on the same speedy downhill course profile—ideal for runners chasing a big PR with a tunnel-to-valley finish.
How long is the Tunnel Half Marathon?
The Tunnel Half Marathon is 21km long.
Where does the Tunnel Half Marathon take place?
The Tunnel Half Marathon takes place in Snoqualmie, WA, USA.
What is the elevation gain of the Tunnel Half Marathon?
Runna classifies the Tunnel Half Marathon elevation profile as Rolling.
How can I prepare for the Tunnel Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Tunnel Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Tunnel Marathon?
How long is the Tunnel Marathon?
Where does the Tunnel Marathon take place?
What is the elevation gain of the Tunnel Marathon?
How can I prepare for the Tunnel Marathon?
How do I choose the right training plan for the Tunnel Marathon?
The Light at the End of the Tunnel Marathon takes place on Sunday 7 June 2026 at 7:00 a.m., starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, Washington, USA, and is organised by Tunnel Marathons as a famously fast, net-downhill point-to-point road marathon featuring the signature stretch through the historic tunnel.
The Tunnel Marathon is 42km long.
The Tunnel Marathon takes place in Snoqualmie, WA, USA.
Runna classifies the Tunnel Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Tunnel Marathon?
The Light at the End of the Tunnel Marathon takes place on Sunday 7 June 2026 at 7:00 a.m., starting at Snoqualmie Pass (Hyak area) and finishing in North Bend, Washington, USA, and is organised by Tunnel Marathons as a famously fast, net-downhill point-to-point road marathon featuring the signature stretch through the historic tunnel.
How long is the Tunnel Marathon?
The Tunnel Marathon is 42km long.
Where does the Tunnel Marathon take place?
The Tunnel Marathon takes place in Snoqualmie, WA, USA.
What is the elevation gain of the Tunnel Marathon?
Runna classifies the Tunnel Marathon elevation profile as Rolling.
How can I prepare for the Tunnel Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Tunnel Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Tunnel Marathon or Tunnel Marathons. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Tunnel Marathon website.
