Vashon Island Ultramarathon & Trail Run
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Vashon Island Ultramarathon & Trail Run
The Vashon Island Ultramarathon & Trail Run takes place on June 5, 2027 on Vashon Island, Washington. Races start and finish at the Gateway Trail system near SW 178th and 103rd SW and run largely within Island Center Forest and adjacent park trails.
Distances
- 50K : three loops
- 20 mile : two loops
- 10 mile : one loop
The course uses single track and double track park trails, short dirt roads, gravel driveways, grass shoulders and small paved sections. Elevation change is about 770 feet per loop, with several short steep hills and sections where roots, downed logs or quick turns can affect footing. The course is clearly marked but not closed to the public; runners may encounter equestrians, pedestrians and bicyclists and should yield to motorized traffic where the course uses public roads.
Aid stations are located near miles 6 and 10 and will be stocked with water, sports drink, soda, salty snacks, fruit, gels, sandwiches and other items. Porta-potties are provided at 0, 0.5, 1.4 and 6 miles. Drop bags can be left at base camp and may be transported to a midcourse aid station.
Registration opens December 5, 2026. Day of race registration is offered with 50K entrants processed first. Entries are nonrefundable; transfers are permitted until the cut-off date and roll overs are granted only for reasons outside the runner's control. The event is USATF sanctioned, run by volunteers as a nonprofit, and limits participants to 200 to reduce environmental impact. Visit the organization's website for the most recent information.
