Woodinville Half
Flat paved rail trail half marathon north of Seattle, run out and back on the Sammamish River Trail and the Eastrail from Wilmot Gateway Park.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 28, 2026.
Quick facts
- Flat paved trail course with negligible elevation change, built for even splits.
- Out and back from Wilmot Gateway Park, with parking roughly half a mile from the start.
- Aid roughly every 2.5 miles with water, electrolyte drink and gels.
- Chip timed, with a 10K sharing the same start.
2027 Woodinville Half registration
Registration for the 2027 Woodinville Half runs through the official registration page at runsignup.com.
About the Woodinville Half
This is a young Puget Sound race that grew quickly because of what it is built for: a flat, paved, early-season time trial for runners who want a clean half marathon mark before spring racing. Aid comes roughly every 2.5 miles and the entry includes a full-zip hooded sweatshirt rather than a tech tee, which tells you something about the weather it plans for.
Course
Paved multi-use trail the whole way, out and back along the Sammamish River Trail and the Eastrail. There is effectively no climbing, so pacing discipline matters more than terrain reading. Trail width is the real constraint, since a two-way out and back on a shared path means passing traffic in the middle miles.
Race-day weather
Early March in the Seattle area usually delivers upper 30s to upper 40s Fahrenheit with a real chance of rain and a damp trail surface. Conditions favor fast running, but standing around at the start in the wet is the part people underestimate.
Past Woodinville Half dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Sunday, March 7, 2027 | Upcoming | — |
Woodinville Half FAQ
When is the Woodinville Half?
The 2027 Woodinville Half is on Sunday, March 7, 2027.
How do I register for the Woodinville Half?
Register for the Woodinville Half through the official registration link: marathonscout.com/go/woodinville-half/register. It opens the race registration page at runsignup.com.
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