Centennial 100 Relay Run
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Event overview
The Centennial 100 Relay and Ultra Run is a 100 km (62 miles) running event organized by Snohomish Running Company. It takes place on Saturday, June 13, 2026, and follows the full length of the Centennial Trail. The route goes from Space 802 in Historic Downtown Snohomish (802 1st Street, Snohomish, WA 98290) to the Nakashima Barn in Arlington and returns to Space 802. Entries are available for solo runners and for teams; team sizes listed by the organizer include solo, teams of 2, 3, or 6 runners.
Race features and logistics
The event includes exchange points along the route; each exchange will have its own theme. All participants receive a finisher medal and a sticker. Race swag is still being finalized by the organizer. An after party will be held at Space 802 and is described as including live music, a beer garden, and a BBQ. Visit the organization's website for the most recent information.