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Half Marathons Found In Washington in May
View all ↓Half Marathons in Washington in May 2026
Find A Race is the US's favourite event listings site. Check out our list of May 2026 Half Marathons in Washington below.
Race Calendar: Half Marathons Found In May
πBoosted
Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80
Olympia, Washington
Sat 09 May 26
$33.80 - $70.90
πBoosted
Capital City Marathon
Olympia, Washington
Sat 16 May 26 - Sun 17 May 26
Free - $54.57
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Never Say Never Half Marathon & 10K
Tieton, Washington
Sat 02 May 26
$96.40 - $122.90
Sunrise Marathon 5K/10K/13.1 SEATTLE
Seattle, Washington
Sat 02 May 26
$32.80 - $48.70
Tacoma City Marathon / Half / Ghost / 5K / 10K
Tacoma, Washington
Sat 02 May 26 - Sun 03 May 26
$39.95 - $189.75
Luau 5K, 10K, & Half Marathon at Langus Riverfront Park, Everett, WA (18) 80
Everett, Washington
Sat 02 May 26
$33.80 - $70.90
Cinco De Mayo Run 5K/10K/13.1 SEATTLE
Seattle, Washington
Sat 02 May 26
$32.80 - $48.70
Kirkland Half Marathon & 5K
Kirkland, Washington
Sun 03 May 26
$15.31 - $86.97
Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80
Olympia, Washington
Sat 09 May 26
$33.80 - $70.90
Windermere Marathon
Spokane, Washington
Sat 09 May 26 - Sun 24 May 26
Free - $96.40
Luau 5K, 10K, & Half Marathon at McCollum Park, Everett, WA (19S40)
Everett, Washington
Sat 09 May 26
$33.80 - $70.90
San Juan Island Half
Friday Harbor, Washington
Sat 09 May 26
$18.37 - $106.41
Luau 5K, 10K, & Half Marathon at Chiawana Park, Pasco, WA (20) 80
Pasco, 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
Luau 5K, 10K, & Half Marathon at Lowell Riverfront Park, Everett, WA (20) 80
Everett, Washington
Sat 16 May 26
$33.80 - $70.90
Reflection Run
Washougal, Washington
Sun 17 May 26
$46.28 - $70.04
5.0
Run for Mental Health 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
Luau 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (21) 50
Spokane, Washington
Sat 23 May 26
$33.80 - $70.90
Run the 509
Deer Park, Washington
Sun 31 May 26
$16.90 - $54.00
Big River Race
Pasco, Washington
Sat 30 May 26
Free - $59.30
Showing 1-19 of 19 results