Running Races in Seattle, Washington

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

Racing in Seattle: what the calendar looks like

There are 77 upcoming races on the Seattle calendar over the next 12 months, with race dates in 11 of the next 12 months. October is the busiest month, with 17 races. That makes Seattle the busiest racing city in Washington.

Of those, 63 offer a 5K, 43 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 The Salty Half and 10K too! on October 17. 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 (10 races, 22 miles), Tacoma (9 races, 25 miles), Puyallup (12 races, 30 miles).

Races by month

October 2026

November 2026

December 2026

January 2027

February 2027

March 2027

April 2027

May 2027

June 2027

August 2027

September 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