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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
Sunrise Marathon 5K/10K/13.1 SEATTLE
Seattle, Washington
02 May 26
$32.80 - $48.70
πBoosted
Windermere Marathon
Spokane, Washington
09 May 26 - 24 May 26
Free - $96.40
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Cinco De Mayo Run 5K/10K/13.1 SEATTLE
Seattle, Washington
02 May 26
$32.80 - $48.70
Never Say Never Half Marathon & 10K
Tieton, Washington
02 May 26
$96.40 - $122.90
Sunrise Marathon 5K/10K/13.1 SEATTLE
Seattle, Washington
02 May 26
$32.80 - $48.70
Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80
Olympia, Washington
09 May 26
$33.80 - $70.90
Windermere Marathon
Spokane, Washington
09 May 26 - 24 May 26
Free - $96.40
Capital City Marathon
Olympia, Washington
16 May 26 - 17 May 26
Free - $54.57
Reflection Run
Washougal, Washington
17 May 26
$46.28 - $70.04
5.0
Run for Mental Health 5K/10K/13.1 SEATTLE
Seattle, Washington
23 May 26
$32.80 - $48.70
Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (21) 80
Olympia, Washington
23 May 26
$33.80 - $70.90
Luau 5K, 10K, & Half Marathon at Liberty Park, Spokane, WA (21) 50
Spokane, Washington
23 May 26
$33.80 - $70.90
Tacoma City Marathon / Half / Ghost / 5K / 10K
Tacoma, Washington
02 May 26 - 03 May 26
$39.95 - $189.75
Kirkland Half Marathon & 5K
Kirkland, Washington
03 May 26
$15.31 - $86.97
San Juan Island Half
Friday Harbor, Washington
09 May 26
$18.37 - $106.41
Big River Race
Pasco, Washington
30 May 26
Free - $59.30
Showing 1-14 of 14 results