Washington Half Marathon Calendar 2025-2026

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Explore the best half marathons in Washington for 2025-2026! Our updated list features 115 exciting races across the region. Find your next race in Washington below and join the running community at these great events!

May 2025
May
31
Saturday

Big River Pasco

5 km 10 km 13 mi
May
31
Saturday

Soaring Eagle Trail Run

Trail Run 5 km 10 km 13 mi
May - Jun
31-1
Sa - Su

Pacific Coast Running Festival

5 km 10 km 13 mi 26 mi
May
31
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 mi
June 2025
Jun
1
Sunday

Evergreen Half Marathon

5 mi 13 mi
Jun
7-8
Sa - Su

North Olympic Discovery Marathon

5 km 10 km 13 mi 26 mi
Jun
7-8
Sa - Su

Echo Valley

Trail Run 10 km 13 mi 50 km
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

Kaniksu Trail Runs

Trail Run 13 mi 29 km ... 50 mi 100 km
Jun
14
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 mi
Jun
14
Saturday

San Juan Island Marathon

10 km 13 mi 26 mi
Jun
14
Saturday

White Salmon Backyard Half

Trail Run 4 mi 13 mi
Jun
14
Saturday

The Best Races - Seattle

5 km 10 km 13 mi
Jun
15
Sunday

Bound for Boston Marathon - Seattle

13 mi 26 mi
Jun
21
Saturday

Snoqualmie Valley Half Marathon

10 km 13 mi
Jun
21
Saturday

Super Marathon & Half Marathon

Trail Run 13 mi 26 mi
Jun
21
Saturday

Wild Woman Trail Marathon

Trail Run 13 mi 26 mi 50 km
Jun
21
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Jun
21
Saturday

Tiger Mountain Trail Run

Trail Run 5 km 12 km 13 mi
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