Vashon Island Ultramarathon & Trail Run
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Vashon Island Ultramarathon & Trail Run : June 6, 2026
The event is a trail running festival on Vashon Island, Washington, staged from the Gateway Trail system near SW 178th and 103rd SW. Distances offered include:
- 50K
- 20 Miler
- 10 Miler
All races use a looped course through Island Center Forest and surrounding parklands, mixing single track and double track trails with sections of dirt road, gravel driveways, grass shoulders and short paved stretches. The course has about 770 feet of elevation change per loop and includes several steep hills and short technical sections with roots and downed logs. The route is not closed to the public and runners may encounter equestrians, pedestrians and bicyclists.
Aid stations are located roughly at miles 6 and 10; 50K entrants pass each aid station three times. Checkpoints and the start area provide water, sports drinks, soda, snacks, fruit, PBJs, gels, stroop waffles and other food items. Porta potties are positioned at 0, 0.5, 1.4 and 6 miles. Drop bags are available at base camp and can be delivered to Aid Station 1 at Fisher Pond.
The event is organized by a Washington non profit and operates with permits and insurance. It is USATF sanctioned and complies with Safe Sport policies. Registration is limited to 200 entrants, refunds are not offered, and day of race registration is available with priority for 50K entrants. Camping at the start field is an option with advance confirmation. Live tracking is provided through UltraSignup. Visit the organization's website for the most recent information.
