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!

March 2025
Mar
1
Saturday

Half Marathon at Langus Riverfront Park

5 km 10 km 15 km 13 mi
Mar
1
Saturday

Coffee Lovers Run - Seattle

5 km 10 km 13 mi
Mar
1
Saturday

Snake River Canyon Half Marathon

13 mi
Mar
1
Saturday

The Donut Run Half Marathon Seattle

5 km 10 km 13 mi
Mar
8
Saturday

Lake Sammamish Half Marathon

13 mi
Mar
8
Saturday

Jewel of the Valley

5 km 10 km 13 mi 26 mi
Mar
8
Saturday

Half Marathon at Heritage Park

5 km 10 km 15 km 13 mi
Mar
8
Saturday

Lord Hillbilly Trail Run

Trail Run 5 km 10 km 13 mi
Mar
15
Saturday

Half Marathon at Chiawana Park

5 km 10 km 15 km 13 mi
Mar
15
Saturday

Half Marathon at Lowell Riverfront Park

5 km 10 km 15 km 13 mi
Mar
15
Saturday

Run The Green

10 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
Mar
22
Saturday

Fall City Classic

5 km 8 km 13 mi
Mar
22
Saturday

Dash Point Trail Run

Trail Run 10 km 13 mi
Mar
22
Saturday

Half Marathon at Liberty Park

5 km 10 km 15 km 13 mi
Mar
22
Saturday

Spring Run for Fun @ Bridle Trails

Trail Run 5 km 10 km 13 mi 26 mi
Mar
29
Saturday

Yakima River Canyon Marathon

13 mi 26 mi
April 2025
Apr
5
Saturday

Half Marathon at Langus Riverfront Park

13 mi
Apr
5
Saturday

Half Marathon at Sarg Hubbard Park

5 km 10 km 15 km 13 mi
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