HalfRuns
2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K

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

Runner Favorite81

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

Beginner FriendlyPR FriendlyDestination Worthy

Atmosphere

Local CommunitySpectator SupportGreat MedalGreat Swag

Course

Fast FlatScenic Route

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

Directions

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

3.1 Miles10K26.2 Miles

Quality Score

Runner Favorite81
Methodology
Heritage20/20

14 years running

Size14/15

~584 finishers a year

Momentum5/5

growing or steady

Loyalty18/20

18% returning runners

Course & details3/15

6 timing sources

National draw8/10

runners from 20 states

Front-pack speed5/5

winner 1:02:45

Weather8/10

typical high 62°F

Race Day Weather

5-year historical avg

Start (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

10%
25%
75%
90%
1:00p50 median ≈ 2:054:50

Turnout by year

20182025

'18'19'20'21'22'23'24'25
See full results

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.

Explore More Journeys

Can't make it to Snohomish? Discover other experiences that match your running style.

Search All Races