Centennial 100 Relay Run

JUN

13

2026

A 100 KM trail event along the Centennial Trail between Snohomish and Arlington, offered as an ultra or relay for solo runners and teams of 2, 3 or 6. The event features themed exchange zones, finisher medals and a post race gathering at Space 802.

Sat 13 Jun 2026

Snohomish, Washington

Website

100 kilometers

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Centennial 100 Relay and Ultra Run

The Centennial 100 Relay and Ultra Run covers 100 KM (62 miles) along the Centennial Trail, running from Space 802 in Historic Downtown Snohomish to the Nakashima Barn in Arlington and back. The route spans the entirety of the Centennial Trail.

The event is offered as an individual ultra or as a relay. Teams are organized in different sizes, with options that include solo runners and multi-person teams. The route is presented as a full 100 KM course to be completed by the entrant or team.

The official start location is Space 802 at 802 1st Street, Snohomish, WA 98290. The event date is Saturday, June 13, 2026.

Exchange points along the trail are presented as themed exchanges; each exchange is described as its own mini running party with a unique theme. All participants receive a finisher medal and a sticker. Race swag is still being finalized.

An after party will be hosted at Space 802 and is planned to include live music, a beer garden and BBQ. Visit the organization's website for the most recent information.

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