Washington Half Marathon Calendar 2025-2026

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Explore the best half marathons in Washington for 2025-2026! Our updated list features 123 exciting races across the region. Find your next race in Washington below and join the running community at these great events!

June 2025
Jun
28
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
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
6
Sunday

Bottle Rocket Marathon

13 mi 26 mi 50 km
Jul
12
Saturday

Devil's Gulch

Trail Run 13 mi 50 mi 100 mi
Jul
12
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 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
19
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 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
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