Centennial 100 Relay Run
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Centennial 100 Relay and Ultra Run
The Centennial 100 Relay and Ultra Run is a 100KM (62 miles) event held on Saturday, June 13, 2026. The course follows the Centennial Trail from Space 802 in Historic Downtown Snohomish to the Nakashima Barn in Arlington and returns to Space 802. The start location is Space 802, 802 1st Street, Snohomish, WA 98290.
The route can be completed by solo runners or by teams composed of 2, 3, or 6 members. Participants will be released in waves of up to ten teams, with slower teams scheduled to start before faster teams. Organizers provide a race map and have planned themed exchange zones; each exchange will have its own theme and atmosphere.
All participants receive a finisher medal and a sticker. Organizers are finalizing event apparel and swag for the inaugural year. An after party is scheduled at Space 802 and will include live music, a beer garden, and a barbecue. The event description notes both relay and solo ultra options along the full 100KM corridor of the Centennial Trail. Visit the organization's website for the most recent information.