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Half Marathons Found In Washington

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Half Marathons in Washington 2025 - 2026

The most comprehensive list of Half Marathons in and near Washington in 2025 - 2026. Find your perfect race!

If you're exploring half marathon races in nearby states, take a look at our range of:

Start your adventure with findarace, your one-stop destination for the most comprehensive list of runs, swims, and cycles across the US.


Race Calendar: Half Marathons Found In Washington

🚀Boosted

Beat the Blerch

Carnation, Washington
06 Sep 25
$44.37 - $130.17
🚀Boosted

Yakima River Canyon Marathon and Half-Marathon

Yakima, Washington
28 Mar 26
$85.00
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Medal Madness 5K, 10K, & Half Marathon at Langus Riverfront Park, Everett, WA (36) 80

Everett, Washington
06 Sep 25
$33.80 - $70.90

PeaceHealth Appletree Marathon

Vancouver, Washington
06 Sep 25
$56.00 - $542.00

Beat the Blerch

Carnation, Washington
06 Sep 25
$44.37 - $130.17

Cascade Express Marathon & Half Marathon

North Bend, Washington
06 Sep 25
$150.46 - $182.26

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (36) 30

Olympia, Washington
06 Sep 25
$33.80 - $70.90

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (37) 50

Olympia, Washington
13 Sep 25
$33.80 - $70.90

Skagit Flats Marathon, Half & 5k

Burlington, Washington
14 Sep 25
$43.40 - $112.30

Orca Half Marathon

Seattle, Washington
20 Sep 25 - 21 Sep 25
Free - $199.29

Mud Mountain Dam Half Marathon / 5K

Buckley, Washington
20 Sep 25
$54.50 - $118.10

Anacortes Half Marathon & 5k

Anacortes, Washington
20 Sep 25
$28.56 - $56.12

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

Everett, Washington
20 Sep 25
$33.80 - $70.90

RUN THE DAM 2025

Grand Coulee, Washington
20 Sep 25
$32.80 - $69.90

Bellingham Bay Marathon

Bellingham, Washington
21 Sep 25
$56.40 - $316.00

Quilcene Oyster Races

Quilcene, Washington
21 Sep 25
Free - $64.60

Medal Madness 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (39) 60

Spokane, Washington
27 Sep 25
$33.80 - $70.90

Fidalgo Trail Run

Anacortes, Washington
27 Sep 25
Free - $110.73

National Singles Day: Singles & Friends Running Club SEATTLE

Seattle, Washington
27 Sep 25
$32.80 - $52.94

Colbert Autumn Classic Half Marathon & 4-Mile Loop

Colbert, Washington
27 Sep 25
$32.80 - $54.00

National Coffee Day: Run for Coffee SEATTLE

Seattle, Washington
27 Sep 25
$32.80 - $52.94

Run for Donuts 5K/10K/13.1 SEATTLE

Seattle, Washington
04 Oct 25
$32.80 - $52.94

Run for the Gnomes Half Marathon & 10K

Maple Valley, Washington
04 Oct 25
$54.00 - $91.10

Cheers to Oktoberfest Run 5K/10K/13.1 SEATTLE

Seattle, Washington
04 Oct 25
$32.80 - $52.94

Haunted 5K, 10K, & Half Marathon at Langus Riverfront Park, Everett, WA (40) 60

Everett, Washington
04 Oct 25
$33.80 - $70.90

Poulsbo Half Marathon & 10k

Poulsbo, Washington
05 Oct 25
$86.97 - $113.97

Haunted 5K, 10K, & 13.1 at McCollum Park, Everett, WA (41) 30

Everett, Washington
11 Oct 25
$33.80 - $70.90

Haunted 5K, 10K, 13.1 & 26.2 at Heritage Park, Olympia, WA (41) 80

Olympia, Washington
11 Oct 25
$33.80 - $97.40

Falla Walla Half Marathon, 10K & Heroes 5K Run

Walla Walla, Washington
11 Oct 25
$54.00 - $75.20

The Spokane Marathon

Spokane, Washington
12 Oct 25 - 19 Oct 25
$22.20 - $133.50

Sun City Barry James Memorial 5K and Half Marathon

Yakima, Washington
12 Oct 25
$16.90 - $22.20

Girlfriends Run

Vancouver, Washington
12 Oct 25
Free - $102.44

International Sloth Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington
18 Oct 25
$32.80 - $52.94

Haunted 5K, 10K, 13.1 & 26.2 at Lowell Riverfront Park, Everett, WA (42) 80

Everett, Washington
18 Oct 25
$33.80 - $97.40

Haunted 5K, 10K, & Half Marathon at Chiawana Park, Pasco, WA (42) 60

Pasco, Washington
18 Oct 25
$33.80 - $70.90

Lake Washington Half Marathon

Kirkland, Washington
18 Oct 25
$56.73 - $102.09

The Salty Half and 10K too!

Seattle, Washington
18 Oct 25
$42.34

Run Against Breast Cancer 5K/10K/13.1 SEATTLE

Seattle, Washington
18 Oct 25
$32.80 - $52.94

Haunted 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (43) 30

Spokane, Washington
25 Oct 25
$33.80 - $70.90

Haunted 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (43) 80

Olympia, Washington
25 Oct 25
$33.80 - $70.90

Tri-Cities Marathon

Richland, Washington
26 Oct 25
$75.00 - $180.00

Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE

Seattle, Washington
01 Nov 25
$32.80 - $48.70
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