Half Marathon Races in Washington
Browse 34 half marathon trail running and hiking routes in Washington. Distance range: 12.5 mi to 13.9 mi. Elevation gain: 156 ft to 9,525 ft. Each route includes terrain analysis, elevation profiles, and pacing recommendations.
Key Takeaways
| Route Name | Location | Distance | Elevation Gain | Type | Race Date |
|---|---|---|---|---|---|
| Seattle Half Marathon | Seattle, Washington | 13.1 mi | 156 ft | race | Nov 29, 2026 |
| Rock Candy Trail | Capitol State Forest, Washington | 12.5 mi | 2,526 ft | route | — |
| Jackita Ridge Trail | Okanogan-Wenatchee National Forest, Washington | 12.6 mi | 6,958 ft | route | — |
| Domerie Peak Trail | Okanogan-Wenatchee National Forest, Washington | 12.7 mi | 4,931 ft | route | — |
| Big Quilcene Trail #833 | Olympic National Forest, Washington | 12.9 mi | 3,629 ft | route | — |
| Middle Fork Trail | Mount Baker-Snoqualmie National Forest, Washington | 12.9 mi | 3,217 ft | route | — |
| Bainbridge Island Traverse | Kitsap County, Washington | 13.0 mi | 703 ft | route | — |
| Mount David (WA) | Chelan County, Washington | 13.0 mi | 5,418 ft | route | — |
| Ice Creek Trail | Okanogan-Wenatchee National Forest, Washington | 13.1 mi | 2,073 ft | route | — |
| Robinson Mountain (WA) | Okanogan County, Washington | 13.1 mi | 6,207 ft | route | — |
| Twin Sisters (WA) | Whatcom County, Washington | 13.1 mi | 4,694 ft | route | — |
| Cougar Lakes Trail | Okanogan-Wenatchee National Forest, Washington | 13.2 mi | 1,780 ft | route | — |
| Upper Suiattle River Trail | Mount Baker-Snoqualmie National Forest, Washington | 13.2 mi | 1,755 ft | route | — |
| Bald Eagle (Curry Gap) Trail | Mount Baker-Snoqualmie National Forest, Washington | 13.3 mi | 4,937 ft | route | — |
| "It's an Edmonds Kind of Day" Half Marathon | Snohomish County, Washington | 13.3 mi | 797 ft | route | — |
| Lewis River Trail | Gifford Pinchot National Forest, Washington | 13.3 mi | 3,631 ft | route | — |
| Tolt Pipeline Trail: Woodinville - Snoqualmie Valley (WA) | King County, Washington | 13.4 mi | 1,525 ft | route | — |
| Worm Flows Climbing Route | Mount Saint Helens National Volcanic Monument, Washington | 13.4 mi | 9,525 ft | route | — |
| Pot Peak Trail | Okanogan-Wenatchee National Forest, Washington | 13.4 mi | 5,017 ft | route | — |
| Chilliwack River Trail | North Cascades National Park, Washington | 13.5 mi | 3,106 ft | route | — |
| Chancellor/Canyon Creek Trail | Okanogan-Wenatchee National Forest, Washington | 13.6 mi | 6,208 ft | route | — |
| Aurora Ridge Trail | Olympic National Park, Washington | 13.7 mi | 5,178 ft | route | — |
| Entiat River Trail | Okanogan-Wenatchee National Forest, Washington | 13.7 mi | 538 ft | route | — |
| Maple Pass (w views) | Okanogan-Wenatchee National Forest, Washington | 13.7 mi | 3,087 ft | route | — |
| Alder Ridge ORV Trail | Okanogan-Wenatchee National Forest, Washington | 13.7 mi | 4,013 ft | route | — |
| Windy Peak Trail | Colville National Forest, Washington | 13.7 mi | 4,836 ft | route | — |
| Cascade Pass Trail | North Cascades National Park, Washington | 13.8 mi | 2,374 ft | route | — |
| Vashon Island Traverse (WA) | King County, Washington | 13.8 mi | 1,013 ft | route | — |
| Coleman Ridge Trail | Okanogan-Wenatchee National Forest, Washington | 13.8 mi | 4,088 ft | route | — |
| Ingalls Creek Trail | Okanogan-Wenatchee National Forest, Washington | 13.8 mi | 602 ft | route | — |
| South Fork Tieton Trail | Okanogan-Wenatchee National Forest, Washington | 13.9 mi | 2,404 ft | route | — |
| Ruth Mountain (WA) | Whatcom County, Washington | 13.9 mi | 4,508 ft | route | — |
| Cook-Aug-Dog Traverse (WA) | Skamania County, Washington | 13.9 mi | 5,233 ft | route | — |
| Shuksan-Baker Grand Double (WA) | Whatcom County, Washington | 13.9 mi | 6,575 ft | route | — |
Frequently Asked Questions
How many trail races are in Washington?
There are 1 organized races and 33 self-supported routes available in Washington.
What is a Half Marathon race?
A Half Marathon race is approximately 12.4 to 14.0 miles in distance.
What is the average elevation gain in Washington?
The average elevation gain is 3,625 feet, with routes ranging from 156 to 9,525 feet.
Can these half marathon routes in Washington be used for hiking?
Yes. 100% of these routes are on trail surfaces, making them suitable for both trail running and hiking. The terrain analysis and elevation profiles help hikers plan their adventures just as effectively as runners.
Are Half Marathon races beginner-friendly?
Half Marathon race difficulty varies widely. Use the elevation gain and terrain analysis to assess each route. Races with lower elevation gain relative to distance and higher runnable percentages tend to be more beginner-accessible.
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