Washington Half Marathon Calendar 2025-2026

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Explore the best half marathons in Washington for 2025-2026! Our updated list features 132 exciting races across the state. Find your next race in Washington below and join the running community at these great events!

January 2025
Jan
18
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Jan
18
Saturday

Coffee Lovers Run - Seattle

5 km 10 km 13 mi
Jan
18
Saturday

Frost Eagle Trail Run

Trail Run 5 mi 13 mi
Jan
18
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Jan
18
Saturday

MLK Jr Freedom Run Half Marathon Seattle

5 km 10 km 13 mi
Jan
19
Sunday

Birthday Run - Seattle

13 mi 26 mi
Jan
25
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
February 2025
Feb
1
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Feb
8
Saturday

Half Marathon at Heritage 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

Valentines Live, Love, RUN - Seattle

5 km 10 km 13 mi
Feb
15
Saturday

Woolley Trail Runs

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
15-16
Sa - Su

Fort Ebey Kettles Trail Run

Trail Run 5 km 10 km 13 mi 26 mi
Feb
15
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Feb
22
Saturday

Richland RunFest

5 km 10 km 13 mi
Feb
22
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
Feb
23
Sunday

Vancouver Lake Half Marathon

4 mi 13 mi
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