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Half Marathon calendar near Seattle 2025-2026

Explore the top half marathons near Seattle for 2025-2026! We've gathered 54 exciting races in the area. Check out our detailed list below to find your next local race.

May 2025
May
10
Saturday

Snohomish Women's Run

5 km 10 km 13 mi
May
17
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
May
24
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
May
31
Saturday

Soaring Eagle Trail Run

Trail Run 5 km 10 km 13 mi
June 2025
Jun
1
Sunday

Evergreen Half Marathon

5 mi 13 mi
Jun
7
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Jun
8
Sunday

The Great Ferry Race

13 mi
Jun
14
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Jun
21
Saturday

Snoqualmie Valley Half Marathon

10 km 13 mi
Jun
21
Saturday

Tiger Mountain Trail Run

Trail Run 5 km 12 km 13 mi
Jun
21
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Jun
21
Saturday

Silver Creek Trail Half Marathon

Trail Run 5 km 10 km 13 mi
Jun
21
Saturday

Newcastle Half Marathon - Bellevue

5 km 10 km 13 mi
Jun
28
Saturday

Tiger Peak Challenge

Trail Run 5 mi 13 mi 50 km
July 2025
Jul
5
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Jul
5
Saturday

Cherry Bomb Marathon

13 mi 26 mi 50 km
Jul
5
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Jul
6
Sunday

Bottle Rocket Marathon

13 mi 26 mi 50 km
Jul
19
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Jul
26-27
Sa - Su

Jack & Jill Downhill Marathon

13 mi 26 mi
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