
2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Snohomish River Run offers a scenic autumn race through historic valley farmland and along the river.
Race Date
Oct 11, 2026
Location
Snohomish, WA
Quick facts
- Date
- Sunday, October 11, 2026
- Location
- Snohomish, Washington
- Distance
- Half marathon (13.1 mi) + 3.1 Miles, 10K, 26.2 Miles
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 7,079
Highlights
Good For
Atmosphere
Course
The Experience
Experience the magic of fall in the Pacific Northwest at the Snohomish River Run, set in the historic Snohomish Valley. The course winds along the Snohomish River, framed by golden farmland, towering evergreens, and the quiet beauty of the region.
This race, first run in 2012 and now in its 14th edition, typically sees around 584 finishers. Runners from about 20 states have participated, with a loyal 18% returning in subsequent years. The course is designed to be fast and runner-friendly, making it suitable for those chasing personal bests or simply enjoying the serene yet energetic atmosphere.
As the morning fog lifts off the river and the sun breaks through the trees, the community comes alive to cheer participants on. With a welcoming, small-town feel, the Snohomish River Run is a celebration of movement and the changing seasons, perfect for both seasoned racers and first-timers.
Race-provided description
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. Marathon Start Time - 7:30AM Half Marathon Start Time - 8:00AM 10K Start Time - 9:00AM 5K Start Time - 9:30AM
Logistics
Race Day
Sunday, October 11, 2026
Start Time
8:00 AM
Giveaway
Crewneck Sweatshirt
Start Location
1301 1st St, Snohomish, WA, 98290
Course Info
Course Type
Loop Course
Terrain
road
Scenery
Lake River, Rural
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
Runner Favorite8114 years running
~584 finishers a year
growing or steady
18% returning runners
6 timing sources
runners from 20 states
winner 1:02:45
typical high 62°F
Race Day Weather
5-year historical avgStart (Low)
44°
Afternoon (High)
62°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
7 mph
Wind
86%
Humidity
Historical Finish Times
How 7,079 finishers actually crossed the line across 14 years.
Most recent
2025
Total finishers
7,079
Median time
2:07:28
Latest turnout
584
States
39
Turnout by year
2018–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K?
The 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K is held on Sunday, October 11, 2026, starting at 8:00 AM.
Where does the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K take place?
It takes place in Snohomish, Washington.
What distances does the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K offer?
The half marathon (13.1 miles), plus 3.1 Miles, 10K, 26.2 Miles.
Is the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K course flat and good for a PR?
The 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K is a ultra-flat, loop course course.
How many people run the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K?
HalfRuns has finish records for 7,079 runners who have completed the 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K.
HalfRuns editorial — independent, no paid placement.
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