Running Races in Seattle, Washington

80 upcoming races in Seattle, updated nightly. For radius search from your exact zip, use the Race Finder.

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Racing in Seattle: what the calendar looks like

There are 80 upcoming races on the Seattle calendar over the next 12 months, with at least one in every month. Among complete calendar months, June 2027 has the most listed races, with 12. That makes Seattle the busiest racing city in Washington.

Of those, 56 offer a 5K, 39 offer a 10K and 36 offer a Half Marathon. The next marathon on the calendar is 2026 Seattle Ghost Marathon, Half & 50K on November 28. The next half marathon is Run for Mental Health 5K/10K/13.1 SEATTLE on November 14. Where fees are published, the median entry in Seattle is $30, close to the Washington median of $30.

Close enough for a race-day drive: Everett (21 races, 16 miles), Tacoma (9 races, 28 miles).

Races by month

November 2026

December 2026

January 2027

February 2027

March 2027

April 2027

May 2027

June 2027

July 2027

August 2027

September 2027

October 2027

Where to stay in Seattle

Race-weekend hotel search, dates prefilled for check-in the night before.

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Planning a race

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All Washington races · Browse by state