Washington Half Marathon Races

13.1 miles of serious training payoff, a favorite goal race for intermediate runners across Washington's Pacific Northwest. Find upcoming Half Marathon races near you on RaceCenter.

Washington Half Marathon Races

Race List

Orca Half Marathon

Anacortes Half Marathon

Quilcene Oyster Races

Bellingham Bay Marathon 2026

Oktoberfest Run 5K/10K/13.1 SEATTLE

Pacific Coast Running Festival

Fidalgo Trail Run

Perpetua Coast

Falla Walla Marathon & 10K

Run for the Gnomes Half Marathon & 5K

Leavenworth Marathon

Poulsbo Half Marathon and 10K

Bagel Run 5K/10K/13.1 SEATTLE

Middle Fork Trail Run

The Spokane Marathon

Snohomish River Run

Lake Washington Half Marathon

Girlfriends Half Marathon, 10K & 6K

Tri-Cities Marathon

Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE

Grand Ridge Trail Run

Run The Bay

Seattle Ghost Marathon, Half Marathon & 50K

Coffee Lovers Run 5K/10K/13.1 SEATTLE

UW Medicine Seattle Marathon & Half Marathon

Run for Breast Cancer 5K/10K/13.1 SEATTLE

A Merry Christmas Run 5K/10K/13.1 SEATTLE

MLK Freedom Run 5K/10K/13.1 SEATTLE

Coffee Lover Run SEATTLE

Fort Ebey Kettles Trail Run

Lake Sammamish Half Marathon

Brooks Lake Sammamish Half Marathon presented by REI