Seattle

Running Races in Seattle, Washington

Seattle's running calendar is anchored by the UW Medicine Seattle Marathon — the city's original hometown marathon and the oldest in the Pacific Northwest, starting near the Space Needle and finishing on the AstroTurf at Memorial Stadium each November. Beyond that, the calendar runs deep: the Orca Half Marathon, Lake Washington Half Marathon, and dozens of themed 5K/10K/half series races fill out nearly every weekend from summer through spring. Here are the upcoming races in Seattle, updated weekly.

Seattle
November 28, 2026
Seattle Ghost Marathon, Half Marathon & 50K
Half Marathon
Marathon
50K
Ultramarathon
Seattle
February 14, 2027
My Better Half Marathon
5K
10K
Half Marathon
Relay
Seattle
February 20, 2027
Fort Ebey Kettles Trail Run
5K
10K
Half Marathon
Marathon
Seattle
March 14, 2027
Run The Green
Half Marathon
Seattle
April 4, 2027
Big Climb Seattle
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Seattle
April 17, 2027
Squak Mountain
Half Marathon
50K
Ultramarathon
Seattle
May 15, 2027
Soaring Eagle
10K
5K
Half Marathon
Kids
Seattle
August 14, 2027
One Step Closer
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