You can run a half marathon in Washington in May, June, July, August, September, October, November, and December.
Page 3 - Washington Half Marathon Calendar
October 3, 2026
500-1000 runners
Leavenworth, Washington
- Half Marathon, Marathon, Trail & Road
October 4, 2026
100-500 runners
Poulsbo, Washington
- 10K, Half Marathon, Road
October 11, 2026
500-1000 runners
Spokane, Washington
- 10K, Half Marathon, Marathon, Trail & Road
October 11, 2026
500-1000 runners
Snohomish, Washington
- Half Marathon, Marathon, Trail & Road
October 17, 2026
500-1000 runners
Kirkland, Washington
- Half Marathon, Trail & Road
October 18, 2026
100-500 runners
Vancouver, Washington
- 10K, Half Marathon, Road
October 24, 2026
1-100 runners
Richland, Washington
- 10K, Half Marathon, Trail & Road
October 25, 2026
1-100 runners
Richland, Washington
- Half Marathon, Marathon, Road
November 4, 2026
1-100 runners
Kent, Washington
- Half Marathon, Marathon, Trail & Road
November 8, 2026
100-500 runners
University Place, Washington
- 10K, 5k, Half Marathon, Trail
November 29, 2026
1,000-10,000 runners
Seattle, Washington
- Half Marathon, Marathon, Trail & Road
December 12, 2026
1,000-10,000 runners
Tacoma, Washington
- 10K, 5k, Half Marathon, Road
December 31, 2026
100-500 runners
Bellingham, Washington
- Half Marathon, Marathon, Trail & Road
January 10, 2027
100-500 runners
Bellingham, Washington
- Half Marathon, Road
March 6, 2027
1,000-10,000 runners
Redmond, Washington
- Half Marathon, Trail
Running in Washington
FAQ
What are the most popular Washington half marathons?
The most popular Washington half marathons are the Seattle Half Marathon with 3,109 finishers in 2023. Followed by the Mount Rainier Half Marathon with 1,391 finishers in 2023.
What are the best Washington half marathons for beginners in 2026?
The Washington half marathons that we recommend most frequently for beginners are the:
Seattle Half Marathon: A large, well produced half marathon with a course around downtown Seattle and Green Lake.
Mount Rainier Half Marathon: A moderate course with 900 ft of elevation gain, with gorgeous views of Mt. Rainier, and a generous four hour time limit.
Iron Horse Half Marathon: A course along Olallie State Park finishing in North Bend with scenery of the river and woods with the entire thirteen miles downhill.
Which months can I run a half marathon in Washington?
Which Washington cities have half marathons?
You can run Washington half-marathon events in Anacortes, Ashford, Bainbridge Island, Bellingham, Bothell, Buckley, Burlington, Carnation, Chelan, Clarkston, Friday Harbor, Gig Harbor, Grand Coulee, Issaquah, Kennewick, Kent, Kirkland, Leavenworth, Long Beach, Maple Valley, North Bend, Ogden, Olympia, Port Angeles, Poulsbo, Puyallup, Quilcene, Redmond, Richland, Sammamish, Seattle, Sequim, Snohomish, Snoqualmie, Snoqualmie Pass, Spokane, Tacoma, Tieton, University Place, Vancouver, Walla Walla, Washougal, Wenatchee, White Salmon, and Zillah.
