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Half Marathons Found In Seattle, Washington

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Half Marathons in & near Seattle, Washington 2025 - 2026

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

Race Calendar: Half Marathons Found In Seattle, Washington

πŸš€Boosted

Fidalgo Trail Run

Anacortes, Washington
27 Sep 25
Free - $105.33
πŸš€Boosted

Shamrock Shuffle

Spokane, Washington
07 Mar 26 - 22 Mar 26
Free - $80.50
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Sunrise Marathon 5K/10K/13.1 SEATTLE

Seattle, Washington
30 Aug 25
$32.80 - $52.94

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (35) 50

Olympia, Washington
30 Aug 25
$36.45 - $73.55

Labor Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington
30 Aug 25
$32.80 - $52.94

Redmond Harvest Half Marathon

Redmond, Washington
01 Sep 25
$75.00

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

Everett, Washington
06 Sep 25
$33.80 - $70.90

PeaceHealth Appletree Marathon

Vancouver, Washington
06 Sep 25
$56.00 - $542.00

Cascade Express Marathon & Half Marathon

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

Beat the Blerch

Carnation, Washington
06 Sep 25
$44.37 - $130.17

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (36) 60

Olympia, Washington
06 Sep 25
$33.80 - $70.90

Medal Madness 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (37) 60

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

Anacortes Half Marathon & 5k

Anacortes, Washington
20 Sep 25
$28.56 - $56.12

Mud Mountain Dam Half Marathon / 5K

Buckley, Washington
20 Sep 25
$54.50 - $118.10

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

Quilcene Oyster Races

Quilcene, Washington
21 Sep 25
Free - $64.60

Bellingham Bay Marathon

Bellingham, Washington
21 Sep 25
$45.44 - $263.50

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

Spokane, Washington
27 Sep 25
$33.80 - $70.90

Fidalgo Trail Run

Anacortes, Washington
27 Sep 25
Free - $105.33

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

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

Everett, Washington
04 Oct 25
$33.80 - $70.90

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

Seattle, Washington
04 Oct 25
$32.80 - $48.70

Run for Donuts 5K/10K/13.1 SEATTLE

Seattle, Washington
04 Oct 25
$32.80 - $48.70

Run for the Gnomes Half Marathon & 10K

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

Poulsbo Half Marathon & 10k

Poulsbo, Washington
05 Oct 25
$76.17 - $103.17

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

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

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

The Spokane Marathon

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

Girlfriends Run

Vancouver, Washington
12 Oct 25
Free - $102.44

Sun City Barry James Memorial 5K and Half Marathon

Yakima, Washington
12 Oct 25
$16.90 - $22.20

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

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
Showing 1-40 of 111 results
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