2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K
Snohomish, WA
MarathonHalf Marathon+2
Open until Oct 12from $55
Marathons Near Seattle, WA
As of October 6, 2026, Crewable lists 5 upcoming marathons near Seattle, WA from October 2026 to December 2026. The next is 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K on October 11 in Snohomish, WA. Registration is open for 2.
Sources: UltraSignup, RunSignUp, UTMB, race organizers and race websites
Race calendar
October 2026
2 racesNovember 2026
2 racesDecember 2026
1 raceQuick answers
What is the next marathon near Seattle, WA?
2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K, on Sunday, October 11, 2026, in Snohomish, WA. Distances: Marathon, Half Marathon, 10K.
What is the closest marathon to Seattle?
2025 Seattle Ghost Marathon, Half & 50K in Seattle, WA, about 1 mile from Seattle, on November 28, 2026.
How many marathons near Seattle, WA have open registration?
2 of the 5 list registration as open as of October 6, 2026, including 2026 The Snohomish River Run Marathon, Half Marathon, 10K and 5K and Grand Ridge.
What is the busiest month for marathons near Seattle, WA?
October 2026, with 2 of the 5. November 2026 follows with 2.
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