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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

Olympia Lakefair Races - Half Marathon, 8K & 3K

Olympia, Washington
19 Jul 25
$49.50 - $88.00
🚀Boosted

Kings San Juan Island Marathon, Half Marathon and 10K

Friday Harbor, Washington
14 Jun 25
$80.50 - $122.90
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Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Langus Riverfront Park, Everett, WA (23) 80

Everett, Washington
07 Jun 25
$27.75 - $70.15

North Olympic Discovery Marathon (5K / 10K/ Half / Full / Relay / Kids Marathon)

Port Angeles, Washington
07 Jun 25
$16.90 - $368.50

Echo Valley

Chelan, Washington
07 Jun 25 - 08 Jun 25
Free - $134.49

The Great Ferry Race

Bainbridge Island, Washington
08 Jun 25
$107.49

Kings San Juan Island Marathon, Half Marathon and 10K

Friday Harbor, Washington
14 Jun 25
$80.50 - $122.90

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (24) 150

Olympia, Washington
14 Jun 25
$27.75 - $70.15

Father's Day Fun Run 5K/10K/13.1 SEATTLE

Seattle, Washington
14 Jun 25
$32.80 - $52.94

Run for Donuts 5K/10K/13.1 SEATTLE

Seattle, Washington
14 Jun 25
$32.80 - $52.94

Three Lakes Triathlons and Kings Market San Juan Island Runs

Friday Harbor, Washington
14 Jun 25
$54.00 - $244.80

Bound for Boston Marathon & Half Marathon - Seattle

Olympia, Washington
15 Jun 25
$49.10 - $102.70

2025 Seattle Marathon's Summer 5k/10k/Half Marathon and Kids Fun Run

Seattle, Washington
21 Jun 25

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Chiawana Park, Pasco, WA (25) 80

Pasco, Washington
21 Jun 25
$27.75 - $70.15

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (25) 80

Everett, Washington
21 Jun 25
$27.75 - $70.15

Super Marathon & Half Marathon

North Bend, Washington
21 Jun 25
$150.46 - $182.26

Silver Creek Trail Run 5K, 10K, Half Marathon at Night Owl Landing

Kingston, Washington
21 Jun 25
$32.80 - $59.30

Jasper Mountain Trail Fest 2025

Dayton, Washington
21 Jun 25
$54.00 - $96.40

Snoqualmie Valley Half

Carnation, Washington
21 Jun 25
$69.69 - $103.17

Tiger Peak Challenge

Issaquah, Washington
28 Jun 25
Free - $121.53

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Liberty Park, Spokane, WA (26) 80

Spokane, Washington
28 Jun 25
$27.75 - $70.15

Christmas 5K/10K/Half Marathon in July - Portland (Washougal)

Washougal, Washington
05 Jul 25
$39.10 - $59.90

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

Everett, Washington
05 Jul 25
$27.75 - $70.15

SuperHeroes Run 5K/10K/13.1 SEATTLE

Seattle, Washington
05 Jul 25
$32.80 - $52.94

July 4th Freedom Run 5K/10K/13.1 SEATTLE

Seattle, Washington
05 Jul 25
$32.80 - $52.94

US 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (27)

Olympia, Washington
05 Jul 25
$27.75 - $70.15

US 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (28) 150

Olympia, Washington
12 Jul 25
$27.75 - $70.15

2025 Run Like the Wind -- Westport 5K, 10K and Half Marathon

Westport, Washington
13 Jul 25
$48.70 - $96.40

Mount Rainier Half Marathon & Trail Events

Enumclaw, Washington
18 Jul 25 - 19 Jul 25
Free - $373.75

US 1M, 5K, 10K, 15K, & Half Marathon at Chiawana Park, Pasco, WA (29) 30

Pasco, Washington
19 Jul 25
$27.75 - $70.15

US 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (29) 80

Everett, Washington
19 Jul 25
$27.75 - $70.15

Olympia Lakefair Races - Half Marathon, 8K & 3K

Olympia, Washington
19 Jul 25
$49.50 - $88.00

Christmas 5K/10K/Half Marathon in July - Richland

Richland, Washington
20 Jul 25
$39.10 - $59.90

B & O Half Marathon and 10k

Orting, Washington
20 Jul 25
$86.86 - $118.66

US 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (30) 150

Olympia, Washington
26 Jul 25
$27.75 - $70.15

US 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (30) 20

Spokane, Washington
26 Jul 25
$33.05 - $70.15

Jack & Jill Downhill Marathon, Half Marathon Washington

North Bend, Washington
26 Jul 25 - 27 Jul 25
$150.46 - $182.26

Craft Classic Seattle

Redmond, Washington
27 Jul 25
$59.97 - $107.49

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Langus Riverfront Park, Everett, WA (31) 80

Everett, Washington
02 Aug 25
$27.75 - $70.15

Singles & Friends Running Club 5K/10K/13.1 SEATTLE

Seattle, Washington
02 Aug 25
$32.80 - $48.70

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (31) 150

Olympia, Washington
02 Aug 25
$27.75 - $70.15

Galloping Gertie

Gig Harbor, Washington
02 Aug 25
$76.26 - $118.66
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