Washington Half Marathons by Date • By City
Browse all 2021 Washington half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up.
When you view a race, you’ll also find contact info if you’re having problems with your registration or need to contact the race directors.
January 2021
| Sat Jan 30 | Tukwila to Alki Half Marathon | Tukwila WA |
February 2021
| Sat Feb 27 | Richland Runfest Half Marathon | Richland WA |
March 2021
| Sat Mar 6 | Lake Sammamish Half Marathon | Sammamish WA |
| Sat Mar 13 | Green River Half Marathon | Tukwila WA |
| Sat Mar 20 | Dash Point State Park Trail Half Marathon & 10K | Federal Way WA |
| Sat Mar 27 | Lenore Dolphin Memorial Run Marathon & Half Marathon | Kent WA |
| Sat Mar 27 | Spring Run for Fun Marathon Half Marathon 10-Mile & 5-Mile | Redmond WA |
| Sun Mar 28 | Everett Half Marathon & 10K | Everett WA |
April 2021
| Sat Apr 10 | Deception Pass Marathon & Half Marathon | Oak Harbor WA |
| Sat Apr 17 | OAT Run Half Marathon & 12K | Port Angeles WA |
| Sat Apr 17 | Wenatchee Marathon Half Marathon & 10K | Wenatchee WA |
| Sun Apr 18 | The Split Spokane Half Marathon | Spokane WA |
| Sat Apr 24 | Squak Mountain Half Marathon 50K & 12K | Issaquah WA |
| Sat Apr 24 | Sunflower Trail Marathon Half Marathon & Relay | Winthrop WA |
May 2021
| Sun May 2 | Snohomish Women's Run Half Marathon & 10K | Everett WA |
| Sun May 9 | Mother's Day Half Marathon & 5K | Kirkland WA |
| Sun May 16 | Windermere Marathon & Half Marathon | Spokane WA |
| Sat May 22 | Soaring Eagle Half Marathon 10K & 5K | Sammamish WA |
| Sun May 23 | Reflection Run Half Marathon 10K & 5K | Washougal WA |
June 2021
| Sat Jun 5 | Green River Marathon & Half Marathon | Kent WA |
| Sat Jun 5 | Lake Wilderness Run Half Marathon 10K & 5K | Maple Valley WA |
| Sun Jun 6 | North Olympic Discovery Marathon Half Marathon 10K & 5K | Port Angeles WA |
| Sun Jun 13 | Great Ferry Race Half Marathon | Bainbridge Island WA |
| Sun Jun 13 | Rock 'n' Roll Seattle Half Marathon | Seattle WA |
| Sat Jun 19 | Evergreen Half Marathon | Snohomish WA |
| Sat Jun 26 | Super Fast Half Marathon | Snoqualmie Pass WA |
| Sun Jun 27 | Craft Classic Seattle Half Marathon & 5K | Redmond WA |
July 2021
| Sun Jul 11 | Yukon Do It! Summer Half Marathon | Port Orchard WA |
| Sat Jul 24 & Sun Jul 25 | Jack and Jill's Downhill Marathon & Half Marathon | North Bend WA |
| Sat Jul 31 | Snoqualmie Valley Half Marathon & 10K | Carnation WA |
| Sat Jul 31 | Tiger Peak Challenge Half Marathon 50K & 5K | Issaquah WA |
August 2021
| Sat Aug 7 | Beast of Big Creek Trail Race | Hoodsport WA |
| Sat Aug 7 | Suncadia Half Marathon & 5K | Cle Elum WA |
| Sun Aug 22 | Iron Horse Half Marathon | North Bend WA |
September 2021
| Mon Sep 6 & Tue Sep 7 | Northwest Series Marathon Half Marathon 10K & 5K – Day 3 & 4 | Clarkston WA |
| Sat Sep 11 | Great Olympic Adventure Trail Run Marathon Half Marathon & 50K | Port Angeles WA |
| Sat Sep 11 | San Juan Island Half Marathon | Friday Harbor WA |
| Sun Sep 12 | Skagit Falls Marathon & Half Marathon | Burlington WA |
| Sun Sep 12 | Whidbey Island Marathon Half Marathon 10K & 5K | Oak Harbor WA |
| Sat Sep 18 | Cascade Express Half Marathon | Snoqualmie Pass WA |
| Sat Sep 18 | Happy Girls Run Spokane Half Marathon 10K & 5K | Spokane WA |
| Sat Sep 18 & Sun Sep 19 | Orca Half Marathon | Seattle WA |
| Sat Sep 18 | Run the Dam Half Marathon 10K & 5K | Grand Coulee WA |
| Sun Sep 19 | AppleTree Marathon & Half Marathon | Vancouver WA |
| Sun Sep 19 | Race for a Soldier Half Marathon 10-Mile & 5K | Gig Harbor WA |
| Sun Sep 26 | Bellingham Bay Marathon Half Marathon 10K & 5K | Bellingham WA |
| Sun Sep 26 | Mt. Si Hill Climb | North Bend WA |
October 2020
| Sat Oct 3 | Leavenworth Oktoberfest Marathon & Half Marathon | Leavenworth WA |
| Sat Oct 10 | Dog Lake Half Marathon | Dog Lake WA |
| Sat Oct 10 | Lake Padden Trail Half Marathon & 5K | Bellingham WA |
| Sun Oct 11 | Girlfriends Run for a Cure Half Marathon | Vancouver WA |
| Sun Oct 11 | Race the Reserve Marathon Half Marathon 10K & 5K | Coupeville WA |
| Sat Oct 17 | Lewis-Clark Half Marathon & 5K | Clarkston WA |
| Sat Oct 17 | Salty Half Marathon | Seattle WA |
| Sat Oct 17 | Squak Mountain Trail Half Marathon 50K & 12K | Issaquah WA |
| Sun Oct 18 | Snohomish River Run Marathon & Half Marathon | Snohomish WA |
| Sun Oct 25 | Scary Run Half Marathon 10K & 5K | Washougal WA |
November 2020
| Sat Nov 14 | Grand Ridge Marathon Half Marathon 50K & 5-Mile | Issaquah WA |
December 2020
| Sat Dec 5 | Redmond Reindeer Romp Half Marathon & 5-Mile | Redmond WA |
