Browse all 2017-2018 Washington half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up. Also see our list of all Washington half marathons by city.
January 2018
- Sat, Jan 20: Frost Eagle Half Marathon & 5 Mile in Sammamish, WA
- Sat, Jan 20: The Rain Run Half Marathon in Redmond, WA
- Sat, Jan 27: Tukwila To Alki Half Marathon in Tukwila, WA
February 2018
- Sun, Feb 11: Birch Bay International Marathon & Half Marathon in Birch Bay, WA
- Sun, Feb 11: My Better Half Marathon, 10K & 5K in Seattle, WA
- Sat, Feb 17: Woolley Trail Run 50K, Marathon & Half Marathon in Sedro-Woolley, WA
- Sat, Feb 24: DuPont Trail Marathon, Half Marathon, 10K & 5K in DuPont, WA
- Sat, Feb 24: Richland Run Fest Half Marathon, 10K & 5K in Richland, WA
March 2018
- Sat, Mar 17: St. Paddy’s Day Run Half Marathon, 10K & 5K in Tacoma, WA
- Sun, Mar 25: Mercer Island Half Marathon, 10K & 5K in Mercer Island, WA
April 2018
- Sat, Apr 7: Honeywagon Runs Half Marathon, 4-Mile & Fun Run in Everson, WA
- Sat, Apr 7: Yakima River Canyon Marathon & Half Marathon in Selah, WA
- Sun, Apr 8: Everett Half Marathon & 10K in Everett, WA
- Sat, Apr 21: Magnuson Series Earth Day Half Marathon, 15K, 10K & 5K in Seattle, WA
- Sat, Apr 21: Omak Orchards in Bloom Half Marathon & 10K in Omak, WA
- Sat, Apr 21: Wenatchee Marathon, Half Marathon & 10K in Wenatchee, WA
- Sat, Apr 28: Ghost of Tacoma Marathon & Half Marathon in Tacoma, WA
- Sun, Apr 29: Blooms to Brews Marathon, Half Marathon, Relay & 10K in Woodland, WA
- Sun, Apr 29: Tacoma City Marathon, Half Marathon, Relay & 5K in Tacoma, WA
May 2018
- Sun, May 6: Snohomish Women’s Run Half Marathon & 10K in Everett, WA
- Sun, May 20: Capital City Marathon, Half Marathon & 5-Mile in Olympia, WA
June 2018
- Sat, Jun 2: Lake Wilderness Run Half Marathon, 10K & 5K in Maple Valley, WA
- Sat, Jun 2: Snoqualmie Valley Half Marathon & 10K in Carnation, WA
- Sun, Jun 3: North Olympic Discovery Marathon, Half Marathon, 10K & 5K in Port Angeles, WA
- Sun, Jun 10: Rock ‘n’ Roll Seattle Marathon & Half Marathon in Seattle, WA
- Sun, Jun 17: Kings San Juan Island Marathon, Half Marathon & 10K in San Juan Island, WA
- Sat, Jun 30: Orting Marathon, Half Marathon & 5K in Orting, WA
July 2017
- Sat, Jul 8: Hoquiam Half Marathon and 5K in Hoquiam, WA
- Sat, Jul 8: Twilight Half Marathon, 5K & 10K in Vancouver, WA
- Sun, Jul 9: See Jane Run Women’s Half Marathon & 5K in Seattle, WA
- Sat, Jul 15: ChelanMan Multisport Weekend Half Marathon & 10K in Chelan, WA
- Sat, Jul 15: Olympia Lakefair Run Half Marathon, 8K & 3K in Olympia, WA
- Sat, Jul 22: B&O Half Marathon in Orting, WA
- Sat, Jul 22: Pie High Trail Run in Snohomish, WA
- Sat, Jul 29: Jack & Jill’s Downhill Marathon & Half Marathon in North Bend, WA
- Sun, Jul 30: Jack & Jill’s Downhill Marathon & Half Marathon in North Bend, WA
August 2017
- Sat, Aug 5: Anacortes Art Dash Half Marathon, 10K & 5K in Anacortes, WA
- Sat, Aug 5: Beast of Big Creek Trail Race in Hoodsport, WA
- Sat, Aug 5: Orting Summerfest Half Marathon, 10K & 5K in Orting, WA
- Sat, Aug 5: Run 4 Ultrasound Half Marathon, 10K & 5K in Lakewood, WA
- Sat, Aug 12: Galloping Gertie Half Marathon in Gig Harbor, WA
- Sat, Aug 12: Race the Reserve Marathon, Half Marathon, 10K & 5K in Coupeville, WA
- Sat, Aug 12: Suncadia Multisport Festival Half Marathon in Cle Elum, WA
- Sat, Aug 12: Tiger Mountain Trail Runs in Issaquah, WA
- Sun, Aug 13: Mud & Chocolate Half Marathon & 4.5-Mile Trail Run in Sammamish, WA
- Sat, Aug 19: Magnuson Series Summer Fitness Day Half Marathon in Seattle, WA
- Sat, Aug 19: Summer Blast at Redmond Watershed Marathon, Half Marathon, 10 Mile & 5 Mile in Redmond, WA
- Sat, Aug 19: Tacoma Narrows Half Marathon in Tacoma, WA
- Sat, Aug 26: Step into Fall Half Marathon, 10K & 5K in Spokane, WA
- Sun, Aug 27: Iron Horse Half Marathon in North Bend, WA
September 2017
- Sun, Sep 3: Colville Half Marathon & 10K in Colville, WA
- Sun, Sep 3: Sporty Diva’s Bad Azz Back to Back at Western Chehalis Trail in Lacey, WA
- Mon, Sep 4: Labor Day Half Marathon & 4-Mile Run/Walk in Redmond, WA
- Mon, Sep 4: Northwest Series Marathon, Half Marathon, 10K & 5K – Day 3 in Clarkston, WA
- Mon, Sep 4: Sporty Diva’s Bad Azz Back to Back at Western Chehalis Trail in Lacey, WA
- Tue, Sep 5: Northwest Series Marathon, Half Marathon, 10K & 5K – Day 4 in Clarkston, WA
- Sat, Sep 9: Backcountry Rise in Toutle, WA
- Sat, Sep 9: Dash Point State Park Trail Half Marathon & 10K in Federal Way, WA
- Sat, Sep 9: Lake Chelan Shore to Shore Marathon, Half Marathon & 10K in Chelan, WA
- Sat, Sep 9: Major Megan McClung Memorial Run Half Marathon, 10K, 5K & 1K in Oak Harbor, WA
- Sat, Sep 9: State Park Series #4 Riverside State Park Half Marathon & 5-Mile in Nine Mile Falls, WA
- Sun, Sep 10: Craft Classic Half Marathon & 5K – Seattle in Seattle, WA
- Sun, Sep 10: Skagit Flats Marathon & Half Marathon in Burlington, WA
- Sat, Sep 16: Beat the Blerch Marathon, Half Marathon & 10K in Carnation, WA
- Sat, Sep 16: GOAT Run Marathon & Half Marathon in Port Angeles, WA
- Sat, Sep 16: Lake Sylvia Fall Festival Half Marathon in Montesano, WA
- Sat, Sep 16: Selah Base Race Half Marathon & 5K in Selah, WA
- Sun, Sep 17: Beat the Blerch Marathon, Half Marathon & 10K in Carnation, WA
- Sun, Sep 17: Lakewood Half Marathon in Lakewood, WA
- Sun, Sep 17: Quilcene Oyster Half Marathon, 10K & 5K in Quilcene, WA
- Sun, Sep 17: Vancouver USA Marathon & Half Marathon in Vancouver, WA
- Sat, Sep 23: Happy Girls Run Spokane Half Marathon, 10K & 5K in Spokane, WA
- Sat, Sep 23: Indian Summer Half Marathon & 5K in Richland, WA
- Sat, Sep 23: North County Wine Run Half Marathon & 5K in Battle Ground, WA
- Sat, Sep 23: Tehaleh Trail Marathon, Half Marathon, 10K & 5K in Bonney Lake, WA
- Sun, Sep 24: Bellingham Bay Marathon, Half Marathon, 10K & 5K in Bellingham, WA
- Sun, Sep 24: The Orca Half in Seattle, WA
- Sun, Sep 24: Race For a Soldier Half Marathon, 5K & Fun Run in Gig Harbor, WA
- Sat, Sep 30: Colbert Classic Half Marathon in Colbert, WA
- Sat, Sep 30: Leavenworth Oktoberfest Marathon & Half Marathon in Leavenworth, WA
- Sat, Sep 30: Run/Walk 4 The Poor Trail Half Marathon in Lakewood, WA
October 2017
- Sun, Oct 1: Winthrop Marathon & Half Marathon in Winthrop, WA
- Sat, Oct 7: Fall City Half Marathon & 10K in Fall City, WA
- Sat, Oct 7: Fort Steilacoom Marathon, Half Marathon, 10K, 5K & 50K in Lakewood, WA
- Sat, Oct 7: Run Like a Girl Bellingham Half Marathon in Bellingham, WA
- Sat, Oct 7: St. Edward Harvest Half Marathon & 10K in Kenmore, WA
- Sun, Oct 8: Spokane Marathon, Half Marathon, Relay & 10K in Spokane, WA
- Sun, Oct 8: Sun City Half Marathon in Yakima, WA
- Sat, Oct 14: Dog Lake Marathon & Half Marathon in Dog Lake, WA
- Sat, Oct 14: Lake Padden Trail Half Marathon in Lake Padden Park, WA
- Sun, Oct 15: Girlfriends Run for a Cure Half & Quarter Marathon in Vancouver, WA
- Sun, Oct 15: Poulsbo Half & 10K in Poulsbo, WA
- Sun, Oct 15: Snohomish River Run in Snohomish, WA
- Sat, Oct 21: Lewis-Clark Half Marathon & 5K in Clarkston, WA
- Sat, Oct 21: Sunset Half Marathon & 5K – Seattle in Seattle, WA
November 2017
- Sat, Nov 4: Bellingham Trail Marathon & Half Marathon in Bellingham, WA
- Sat, Nov 4: In Unity We Run Marathon & Half Marathon in Kent, WA
- Sat, Nov 4: Klickitat Trail Run Marathon, Half Marathon & 5K in Klickitat, WA
- Sat, Nov 4: Lake Washington Half Marathon & 5K in Kirkland, WA
- Sat, Nov 4: Rocky Top Brew Run Half Marathon, 10K, 5K & 1-Mile in Yakima, WA
- Sun, Nov 5: Mud and Chocolate Trail Run Half Marathon in Redmond, WA
- Sun, Nov 5: Turn Back the Clock Half Marathon in Lacey, WA
- Sat, Nov 11: American Veteran Day Run in Battle Ground, WA
- Sat, Nov 11: Orting Turkey Trot in Orting, WA
- Sat, Nov 11: Race to Remember Veterans Day Half Marathon in Vancouver, WA
- Sat, Nov 18: Cupcake Runs Half Marathon in Snohomish, WA
- Sat, Nov 18: Grand Ridge Trail Marathon, Half Marathon, 50K & 5M in Issaquah, WA
- Sun, Nov 19: Balanced Athlete Half in Renton, WA
- Mon, Nov 20: Orting Trail Half in Orting, WA
- Tue, Nov 21: Redmond River Half in Redmond, WA
- Thu, Nov 23: Wattle Waddle Marathon & Half Marathon in Seattle, WA
- Fri, Nov 24: Grandpa’s Wishbone Run Half Marathon in Tukwila, WA
- Sat, Nov 25: Ghost of Seattle Half Marathon, Marathon & 50K in Seattle, WA
- Sun, Nov 26: Seattle Marathon & Half Marathon in Seattle, WA
December 2017
- Sat, Dec 2: Redmond Reindeer Romp Half Marathon in Redmond, WA
- Sat, Dec 9: Santa Runs Tacoma Half Marathon, 10K & 5K in Tacoma, WA
- Sun, Dec 31: Yukon Do It Marathon & Half Marathon in Port Orchard, WA
