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Half Marathons in Washington

Planning to run a Half Marathon in Washington? Check out the full list below to see which races athletes have rated as the best half marathons in Washington. View more running races by changing filters and expanding your search area.

Beachside Half Marathon

Monroe, Washington

January 7th, 2018

Running: Half Marathon, 5K Kids Run/Fun Run

Nookachamps Winter Runs

Mt. Vernon, Washington

January 13th, 2018

Running: Half Marathon, 10K, 5K

Northwest Trail Runs - Frost Eagle

Sammamish, Washington

January 20th, 2018

Running: Half Marathon, 5 Mile Trail Run

Blast from the Past Half and Half

Issaquah, Washington

January 27th, 2018

Running: Half Marathon, 6.6 Mile Trail Run

Tukwila To Alki Half Marathon

Tukwila, Washington

January 27th, 2018

Running: Half Marathon

Seattle Locks Marathon

Seattle, Washington

January 28th, 2018

Running: Half Marathon, Marathon

Geoduck Gallop

Olympia, Washington

February 3rd, 2018

Running: Half Marathon, 10K

Green River Half Marathon

Tukwila, Washington

February 10th, 2018

Running: Half Marathon

Birch Bay Marathon

Birch Bay, Washington

February 11th, 2018

Running: Half Marathon, Marathon

My Better Half Marathon

Seattle, Washington

February 11th, 2018

Running: Half Marathon Relay, Marathon

Fragrance Lake Half

Bellingham, Washington

February 17th, 2018

Running: Half Marathon, 10K Trail Run

Woolley Trail Runs

Sedro-Woolley, Washington

February 17th, 2018

Running: Half Marathon Trail Run, Marathon, 50 Miles

Lord Hill Trail Runs

Snohomish, Washington

February 18th, 2018

Running: Half Marathon, 10 Miles, 20 Miles, 5 Mile Trail Run, 50K (Ultra)

DuPont Trail Marathon

DuPont, Washington

February 24th, 2018

Running: Half Marathon, Marathon, 10K, 5K Trail Run

Fort Ebey Kettles Trail Run

Coupeville, Washington

February 24th, 2018

Running: Half Marathon, Marathon, 10K Trail Run, 20 Miles

Richland Run Fest

Richland, Washington

February 24th, 2018

Running: Half Marathon, Marathon, 5K

Cupcake Fun Run - Day 2

Arlington, Washington

March 25th, 2018

Running: Half Marathon, Marathon

Lantern Run Seattle

Seattle, Washington

April 14th, 2018

Running: Half Marathon, 10K, 5K

Mud & Chocolate - Half Marathon

Redmond, Washington

April 15th, 2018

Running: Half Marathon Trail Run

Rattlesnake Ridge Run

North Bend, Washington

April 28th, 2018

Running: Half Marathon, 5 Mile Trail Run, 50K (Ultra)