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Half Marathons Found In Washington in May

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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

🚀Boosted

Reflection Run

Washougal, Washington
17 May 26
$46.28 - $70.04
5.0
🚀Boosted

Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80

Olympia, Washington
09 May 26
$33.80 - $70.90
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Never Say Never Half Marathon & 10K

Tieton, Washington
02 May 26
$96.40 - $122.90

Windermere Marathon

Spokane, Washington
09 May 26 - 24 May 26
Free - $96.40

Luau 5K, 10K, & Half Marathon at Heritage Park, Olympia, WA (19) 80

Olympia, Washington
09 May 26
$33.80 - $70.90

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

Big River Race

Pasco, Washington
30 May 26
Free - $59.30
Showing 1-6 of 6 results