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Half Marathon calendar near Seattle 2025-2026

Explore the top half marathons near Seattle for 2025-2026! We've gathered 29 exciting races in the area. Check out our detailed list below to find your next local race.

January 2025
Jan
18
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Jan
18
Saturday

Frost Eagle Trail Run

Trail Run 5 mi 13 mi
Jan
18
Saturday

MLK Jr Freedom Run Half Marathon Seattle

5 km 10 km 13 mi
Jan
18
Saturday

Coffee Lovers Run - Seattle

5 km 10 km 13 mi
Jan
19
Sunday

Birthday Run - Seattle

13 mi 26 mi
February 2025
Feb
1
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Feb
8
Saturday

Seahurst Scramble Trail Run

Trail Run 3 mi 7 mi 13 mi
Feb
9
Sunday

My Better Half Marathon

5 km 10 km 13 mi
Feb
9
Sunday

West Seattle Beach Run - Fat Ass

Trail Run 13 mi 26 mi 50 km
Feb
15
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Feb
15
Saturday

Valentines Live, Love, RUN - Seattle

5 km 10 km 13 mi
March 2025
Mar
1
Saturday

Coffee Lovers Run - Seattle

5 km 10 km 13 mi
Mar
1
Saturday

The Donut Run Half Marathon Seattle

5 km 10 km 13 mi
Mar
1
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Mar
8
Saturday

Lake Sammamish Half Marathon

13 mi
Mar
8
Saturday

Lord Hillbilly Trail Run

Trail Run 5 km 10 km 13 mi
Mar
15
Saturday

Run The Green

10 km 13 mi
Mar
15
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Mar
15
Saturday

St. Paddy's Day Run

5 km 10 km 13 mi
Mar
22-23
Sa - Su

Seattle Cherry Blossom Run

5 km 10 km 13 mi
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