The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Updated
Sunday, October 17, 2027, first start 7:30 AM, in Snohomish (1301 1st St). Distances: 5K, 10K, Half marathon, Marathon. Entry from $45 to $85; the 5K goes from $45 to $55 after September 7.
- Date
- Sunday, October 17, 2027
- Start time
- 7:30 AM (earliest wave)
- Location
- 1301 1st St, Snohomish, WA 98290
- Area
- Snohomish County, Seattle
- Distances
- 5K10KHalf marathonMarathon
- Course
- Road or path
- Price
- $45 to $85 plus the platform's processing fee
- Next price increase
- Tuesday, September 7, 2027: 5K $45 → $55
- Registration
- Open. Opened October 11, online signup closes Monday, October 18, 2027
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by September 7 to pay $45 instead of $55.
Register on RunSignup →Race website
Course and race notes
Snohomish River Run - Sunday, October 17th, 2027. 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.
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.