
Snohomish, United States of America · Sunday 11 October 2026
Snohomish River Run - Sunday, October 11th Experience the magic of fall in the Pacific Northwest at the Snohomish River Run - where crisp autumn air, vibrant colors, and scenic river views come together for an unforgettable race day. Set in the heart of the historic Snohomish Valley, this course takes you along the winding Snohomish River, surrounded by golden farmland, towering evergreens, and the quiet beauty that makes this region so special. Whether you’re chasing a personal best or simply soaking in the scenery, every mile offers a perfect blend of serenity and energy. Feel the rhythm of your stride as the morning fog lifts off the river, the sun breaks through the trees, and the community comes alive to cheer you on. This is more than just a race - it’s a celebration of movement, connection, and the changing seasons. With a fast, runner-friendly course and a welcoming, small-town atmosphere, the Snohomish River Run is perfect for seasoned racers and first-timers alike. Come run where the river flows, the leaves turn, and the miles feel a little more meaningful. Join us on Sunday, October 11th - and make this your most memorable run of the year.
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
We don't yet have verified elevation data for this course, so we can't rate its difficulty against other half marathons. Our data pipeline backfills course elevation continuously - check back soon.
The Snohomish River Run Marathon, Half Marathon, 10K and 5K is a half marathon held in Snohomish, United States of America. It is scheduled for Sunday 11 October 2026. The course is run on road surface with 0m of total climbing, with its high point near 0m above sea level. For registration and full race details, visit the official The Snohomish River Run Marathon, Half Marathon, 10K and 5K website.
This is a very flat course, with only 0m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
The Snohomish River Run Marathon, Half Marathon, 10K and 5K is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare The Snohomish River Run Marathon, Half Marathon, 10K and 5K against other half marathons to find the right race for your goals.
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