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Half Marathons Found In Washington in August

Half Marathons in Washington in August 2025

Find A Race is the US's favourite event listings site. Check out our list of August 2025 Half Marathons in Washington below.

Race Calendar: Half Marathons Found In August

Featured

Date

Highest Rated

Twilight at the Bay

University Place, Washington

$65.66 - $108.06

Tacoma Narrows Half Marathon / 5K

Tacoma, Washington

$49.20 - $91.60

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

Olympia, Washington

$27.75 - $70.15

Galloping Gertie

Gig Harbor, Washington

$65.66 - $108.06

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

Everett, Washington

$27.75 - $70.15

Race the Reserve Whidbey Island

Coupeville, Washington

$32.80 - $69.90

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (32) 150

Olympia, Washington

$27.75 - $70.15

Twilight at the Bay

University Place, Washington

$65.66 - $108.06

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Chiawana Park, Pasco, WA (33) 30

Pasco, Washington

$27.75 - $70.15

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Lowell Riverfront Park, Everett, WA (33) 80

Everett, Washington

$27.75 - $70.15

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (34) 150

Olympia, Washington

$27.75 - $70.15

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Liberty Park, Spokane, WA (34) 20

Spokane, Washington

$27.75 - $70.15

Tacoma Narrows Half Marathon / 5K

Tacoma, Washington

$49.20 - $91.60

Iron Horse Half Marathon

North Bend, Washington

$56.73 - $101.01

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon at Heritage Park, Olympia, WA (35)

Olympia, Washington

$27.75 - $70.15

Showing 1-13 of 13 results