UW Medicine Seattle Marathon

Seattle, Washington, United States

Nov 29, 2026 - Sunday

Half-marathon, Marathon

Video

Race Information

The UW Medicine Seattle Marathon and Half Marathon, Seattle's original hometown marathon and the oldest marathon in the Pacific Northwest, is set on a beautiful course with rolling hills and scenic views of Seattle’s iconic bridges, waterways and architecture. Take part in this iconic Thanksgiving weekend tradition and see why we've been RUNNING SEATTLE SINCE 1970.

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Downhill Super Series 🪽

3 of the Fastest Boston Qualifier Courses in the U.S.
#22 Fastest | #35 Fastest | #5 Fastest 🇺🇸

Boston Marathon qualifying eligible with no downhill penalty! Marathon and half marathon distances un through the iconic Snoqualmie Tunnel. 

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🪽 Super Hyak Marathon & Half - June 13th
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⛰️ Cascade Express Marathon & Half - Sept. 12th

Learn More

These smooth rail-trail courses feature sustained net downhill profiles designed to help runners chase personal bests and Boston Qualifying times. Located along the Palouse to Cascades Trail, this historic rail tunnel offers cool temperatures and a unique running experience before the course continues downhill toward the finish.

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Race Facts

Race Size: 5,000 - 10,000

Elevation: Some Hills

Course Type: Road

Boston Qualifier: Yes

Kids Run: Yes

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