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Half Marathons Found In Washington in September
View all ↓Half Marathons in Washington in September 2025
Find A Race is the US's favourite event listings site. Check out our list of September 2025 Half Marathons in Washington below.
Race Calendar: Half Marathons Found In September
Cascade Express Marathon & Half Marathon
Snoqualmie Pass, Washington
06 Sep 25
$127.14 - $158.94
GOAT Run
Port Angeles, Washington
06 Sep 25
$67.78 - $94.28
PeaceHealth Appletree Marathon
Vancouver, Washington
07 Sep 25
$52.76 - $542.00
Ninja 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (9-13-2025)
Olympia, Washington
13 Sep 25
$27.50 - $69.90
Orca Half Marathon
Seattle, Washington
20 Sep 25 - 21 Sep 25
Free - $159.33
Fidalgo Trail Run
Anacortes, Washington
27 Sep 25
Free - $99.93
Redmond Harvest Half Marathon
Redmond, Washington
01 Sep 25
$59.00
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