Washington Half Marathon Calendar 2025-2026

Header image

Explore the best half marathons in Washington for 2025-2026! Our updated list features 130 exciting races across the region. Find your next race in Washington below and join the running community at these great events!

July 2026
Jul
25
Saturday

US Road Running - Olympia

5 km 10 km Half Marathon
Jul
26
Sunday

Craft Classic Seattle

5 km Half Marathon
August 2026
Aug
8
Saturday

US Road Running - Olympia

5 km 10 km Half Marathon
Aug
29
Saturday

Backcountry Rise - Toutle, WA

Trail Run Half Marathon 20 mi 50 km
Aug
30
Sunday

Iron Horse Half Marathon

13 mi
September 2026
Sep
5
Saturday

Jump off Joe Marathon

Trail Run 10 km 13 mi 26 mi
Sep
7
Monday

Redmond Harvest Half Marathon

Half Marathon
Sep
19-20
Sa - Su

Seattle North Spartan Trifecta Weekend

Obstacle Run 5 km 10 km Half Marathon
Sep
19-20
Sa - Su

Orca Half Marathon

8 mi Half Marathon
October 2026
Oct
3
Saturday

Leavenworth Marathon

Half Marathon Marathon
Articles
Top 10 Marathons in the Netherlands — The Ultimate Dutch Marathon Bucket List: 10 Unmissable Races
The Beauty of the Easy Run — Why slowing down might be the smartest thing you do for your running
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series