Centennial 100 Relay Run
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Centennial 100 Relay and Ultra Run
The Centennial 100 Relay and Ultra Run is a 100KM event along the Centennial Trail between Historic Downtown Snohomish and Arlington. The route runs from Space 802 in Snohomish to the Nakashima Barn in Arlington and returns along the same trail, covering the full Centennial Trail corridor.
The event offers individual ultra entries and relay options. Teams may be composed as solo runners or as teams of 2, 3, or 6 runners, sharing the 100KM distance. Each relay exchange is presented with its own theme and is organized as a small event location along the course.
Race logistics include a designated start location at Space 802, 802 1st Street, Snohomish, WA 98290. Race swag details are being finalized. All participants receive a finisher medal and a sticker. An after party is scheduled at Space 802 with live music, a beer garden, and BBQ.
The event is presented by Snohomish Running Company and is listed for Saturday, June 19, 2027. The format combines an out-and-back route along a continuous trail with multiple exchange points for relay teams. Visit the organization's website for the most recent information.
