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Half Marathons Found In Washington in September

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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

🚀Boosted

Orca Half Marathon

Seattle, Washington
20 Sep 25 - 21 Sep 25
Free - $171.21
🚀Boosted

Bellingham Bay Marathon

Bellingham, Washington
21 Sep 25
$45.44 - $263.50
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Redmond Harvest Half Marathon

Redmond, Washington
01 Sep 25
$59.00

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Langus Riverfront Park, Everett, WA (27) 80

Everett, Washington
06 Sep 25
$27.75 - $70.15

PeaceHealth Appletree Marathon

Vancouver, Washington
06 Sep 25
$52.76 - $542.00

Cascade Express Marathon & Half Marathon

North Bend, Washington
06 Sep 25
$139.86 - $171.66

Beat the Blerch

Carnation, Washington
06 Sep 25
$44.37 - $130.17

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (36)

Olympia, Washington
06 Sep 25
$27.75 - $70.15

GOAT Run

Port Angeles, Washington
06 Sep 25
$67.78 - $94.28

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (37) 150

Olympia, Washington
13 Sep 25
$27.75 - $70.15

Skagit Flats Marathon, Half & 5k

Burlington, Washington
14 Sep 25
$32.80 - $80.50

Orca Half Marathon

Seattle, Washington
20 Sep 25 - 21 Sep 25
Free - $171.21

RUN THE DAM 2025

Grand Coulee, Washington
20 Sep 25
$27.50 - $64.60

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (38) 80

Everett, Washington
20 Sep 25
$27.75 - $70.15

Anacortes Half Marathon & 5k

Anacortes, Washington
20 Sep 25
$28.56 - $56.12

Bellingham Bay Marathon

Bellingham, Washington
21 Sep 25
$45.44 - $263.50

Quilcene Oyster Races

Quilcene, Washington
21 Sep 25
Free - $59.30

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Liberty Park, Spokane, WA (39) 80

Spokane, Washington
27 Sep 25
$27.75 - $70.15

Fidalgo Trail Run

Anacortes, Washington
27 Sep 25
Free - $99.93
Showing 1-17 of 17 results

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