Seattle Cherry Blossom Run

Seattle, Washington, United States

Apr 18, 2026 - Saturday

5k, 10k, Half-marathon

Race Information

The Cherry Blossom Run will have everyone at Seward Park - the stunning location of the first ever cherry blossoms planted in Seattle - to explore the beautiful blooms along Lake Washington! Seward Park is where Seattle’s cherry blossom story began. Back in 1929, it became home to the city’s first cherry treesβ€”a gift from Japan symbolizing friendship. The half marathon stretches along Lake Washington, while the 5k and 10k wind through the park’s lush, scenic paths.

RunGuides Pick of the Month: Downhill Super Series πŸͺ½

3 of the Fastest Boston Qualifier Courses in the U.S.
#22 Fastest | #35 Fastest | #5 Fastest πŸ‡ΊπŸ‡Έ

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

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πŸͺ½ Super Hyak Marathon & Half - June 13th
🌲 Jack & Jill Marathon & Half - July 25 & 26th
⛰️ Cascade Express Marathon & Half - Sept. 12th

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: 10,000+

Elevation: Fast and Flat

Course Type: Road

Boston Qualifier: No

Kids Run: No

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