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Half Marathons Found In Washington in Spring

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Half Marathons in Washington in Spring 2026

Find A Race is the US's favourite event listings site. Check out our list of Spring 2026 Half Marathons in Washington below.

Race Calendar: Half Marathons Found In Spring

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St. Paddy's Day Run Tacoma

Tacoma, Washington
Sat 14 Mar 26
$50.65 - $88.10
🚀Boosted

San Juan Island Half

Friday Harbor, Washington
Sat 09 May 26
$18.37 - $106.41
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Luau 5K, 10K, & Half Marathon at Chiawana Park, Pasco, WA (20) 80

Pasco, Washington
Sat 16 May 26
$33.80 - $70.90

Luau 5K, 10K, & Half Marathon at Lowell Riverfront Park, Everett, WA (20) 80

Everett, Washington
Sat 16 May 26
$33.80 - $70.90

Capital City Marathon

Olympia, Washington
Sat 16 May 26 - Sun 17 May 26
Free - $54.57

Reflection Run

Washougal, Washington
Sun 17 May 26
$46.28 - $70.04
5.0

Luau 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (21) 50

Spokane, Washington
Sat 23 May 26
$33.80 - $70.90

Luau 5K, 10K, & Half Marathon at Lake Camas Heritage Park, Camas, WA (21S40)

Camas, Washington
Sat 23 May 26
$33.80 - $70.90

Run for Mental Health 5K/10K/13.1 SEATTLE

Seattle, Washington
Sat 23 May 26
$32.80 - $48.70

Memorial Day Run 5K/10K/13.1 SEATTLE

Seattle, Washington
Sat 23 May 26
$32.80 - $48.70

Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (21) 80

Olympia, Washington
Sat 23 May 26
$33.80 - $70.90

Run the 509

Deer Park, Washington
Sun 31 May 26
$16.90 - $54.00

Seattle Cherry Blossom Run

Seattle, Washington
Sat 28 Mar 26 - Sat 11 Apr 26
$36.41 - $75.56

Big River Race

Pasco, Washington
Sat 30 May 26
Free - $59.30
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