Upcoming Half Marathon Races In Washington, US in May, 2025

Never Say Never Half Marathon & 10K

Tieton, WA

Saturday, May 3rd, 2025

Tacoma City Marathon / Half / Ghost / 5K / 10K

Tacoma, WA

Saturday, May 3rd, 2025

Cinco De Mayo Run: Against All Odds SEATTLE

Seattle, WA

Saturday, May 3rd, 2025

Luau 1M, 5K, 10K, 15K, & Half Marathon at Lang...

Everett, WA

Saturday, May 3rd, 2025

Kirkland Half Marathon & 5K

Kirkland, WA

Sunday, May 4th, 2025

San Juan Island Half

Friday Harbor, WA

Saturday, May 10th, 2025

Snohomish Women's Run

Everett, WA

Saturday, May 10th, 2025

Ninja 1M, 5K, 10K, 15K, & Half Marathon at Heri...

Olympia, WA

Saturday, May 10th, 2025

Mermaid Run Spokane - 2025

Spokane, WA

Sunday, May 11th, 2025

Windermere Marathon, Half, 10K, & 5K

Spokane, WA

Friday, May 16th, 2025

Capital City Marathon

Olympia, WA

Saturday, May 17th, 2025

Windermere Marathon, Half, 10K, & 5K

Spokane, WA

Sunday, May 18th, 2025

Reflection Run

Washougal, WA

Sunday, May 18th, 2025

Medal Madness 1M, 5K, 10K, 15K, & Half Marathon...

Olympia, WA

Saturday, May 31st, 2025

Big River

Pasco, WA

Saturday, May 31st, 2025

Soaring Eagle Trail Run

Sammamish, WA

Saturday, May 31st, 2025

Pacific Coast Running Festival

Long Beach, WA

Saturday, May 31st, 2025