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!

July 2025
Jul
12
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 mi
Jul
12
Saturday

Devil's Gulch

Trail Run 13 mi 50 mi 100 mi
Jul
18-19
Fr - Sa

Mount Rainier Half Marathon

Trail Run 5 km 10 km 13 mi
Jul
19
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Jul
19
Saturday

Olympia Lakefair Races - Half Marathon

3 km 8 km 13 mi
Jul
20
Sunday

B & O Half Marathon

10 km 13 mi
Jul
26-27
Sa - Su

Jack & Jill Downhill Marathon

13 mi 26 mi
Jul
26
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
Jul
27
Sunday

Craft Classic Seattle

5 km 13 mi
August 2025
Aug
2
Saturday

Galloping Gertie

5 km 10 km 13 mi
Aug
2
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Aug
9
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 mi
Aug
16
Saturday

Twilight at the Bay

Trail Run 5 km 10 km 13 mi
Aug
16
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Aug
16
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Aug
23
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
Aug
23
Saturday

Tacoma Narrows Half Marathon

5 km 13 mi
Aug
24
Sunday

Iron Horse Half Marathon

13 mi
September 2025
Sep
1
Monday

Redmond Harvest Half Marathon

13 mi
Sep
6-7
Sa - Su

Appletree Marathon

5 km 13 mi 26 mi
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