
North Bend, United States of America · Sunday 14 June 2026
The Light at the End of the Tunnel Marathon is a point-to-point race located in Washington State, starting at Hyak Sno Park near Snoqualmie Pass and finishing near North Bend. The course predominantly follows the John Wayne Pioneer Trail, which is part of Iron Horse State Park, and incorporates a significant segment through the 2.4-mile-long Hyak Tunnel, requiring runners to use a headlamp or flashlight due to its darkness.\n\nThe marathon is recognized for its consistent downhill profile, dropp
Adjusted Time
4:06:14
Time difference: +6.2 minutes compared to a flat, road, temperate course.
Light at the End of the Tunnel Marathon is a full marathon held in North Bend, United States of America, scheduled for Sunday 14 June 2026. The course is run on road surface with 81m of total elevation gain, reaching a maximum altitude of 786m above sea level. For registration and full race details, visit the official Light at the End of the Tunnel Marathon website.
This is a very flat course with only 81m of total elevation gain across the full distance. The course ranges from 517m to 786m above sea level — a 269m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Based on historical weather data for June, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 20°C and 25°C. Heat is one of the biggest performance factors in marathon running — research shows that for every degree above 15°C, marathon times slow by approximately 1-2%. Extra hydration and a conservative start are strongly recommended. There is a moderate chance of rain (46%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Light at the End of the Tunnel Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Light at the End of the Tunnel Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Light at the End of the Tunnel Marathon against other marathons to find the right race for your goals.
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