The Snohomish River Run Marathon, Half Marathon, 10K and 5K
- Date
- October 11, 2026
- Location
- 1301 1st St, Snohomish, WA
- Distance
- The Snohomish River Run 5k · The Snohomish River Run 10k · The Snohomish River Run Half Marathon & more
From the Organizer
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
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
59°
Typical Low
42°
Chance of Rain
54%
Based on US Climate Normals data from Monroe, 5 mi from the venue.
Host City
About Snohomish, WA
Elevation
18 ft
Nearest Airport
PAE
Seattle Paine Field International Airport · 10 mi
Major Hub
SEA
Seattle–Tacoma International Airport · 32 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at The Snohomish River Run Marathon, Half Marathon, 10K and 5K, put it on the calendar, and turn “someday” into a start date.
125
Days to train
- Race
- The Snohomish River Run Marathon, Half Marathon, 10K and 5K
- Date
- October 11, 2026
- Location
- 1301 1st St, Snohomish, WA
Coming Up
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Everett 4th of July 5k
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Eagle 5K, 10K & 13.1M Everett, WA (27)
Half Marathon · 10K · 5K
7 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is The Snohomish River Run Marathon, Half Marathon, 10K and 5K?
- The Snohomish River Run Marathon, Half Marathon, 10K and 5K is a running race held in Snohomish, Washington on October 11, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is The Snohomish River Run Marathon, Half Marathon, 10K and 5K?
- Sunday, October 11, 2026 in Snohomish, Washington at 1301 1st St, Snohomish, WA. Check the event page for exact start times and wave schedules.
- How do I register for The Snohomish River Run Marathon, Half Marathon, 10K and 5K?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Oct 11, 2026